You searched for +publisher:"Georgia Tech" +contributor:("charles liotta").
Showing records 1 – 11 of
11 total matches.
No search limiters apply to these results.
Georgia Tech
1.
Jones, Jeffrey R.
Modification of poly(ethylene terephthalate) through thermal and photochemical crosslinking.
Degree: PhD, Chemistry, 1998, Georgia Tech
URL: http://hdl.handle.net/1853/30045 
Subjects/Keywords: Thermoplastics; Photochemistry; Crosslinking (Polymerization)
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jones, J. R. (1998). Modification of poly(ethylene terephthalate) through thermal and photochemical crosslinking. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/30045
Chicago Manual of Style (16th Edition):
Jones, Jeffrey R. “Modification of poly(ethylene terephthalate) through thermal and photochemical crosslinking.” 1998. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/30045.
MLA Handbook (7th Edition):
Jones, Jeffrey R. “Modification of poly(ethylene terephthalate) through thermal and photochemical crosslinking.” 1998. Web. 16 Jan 2021.
Vancouver:
Jones JR. Modification of poly(ethylene terephthalate) through thermal and photochemical crosslinking. [Internet] [Doctoral dissertation]. Georgia Tech; 1998. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/30045.
Council of Science Editors:
Jones JR. Modification of poly(ethylene terephthalate) through thermal and photochemical crosslinking. [Doctoral Dissertation]. Georgia Tech; 1998. Available from: http://hdl.handle.net/1853/30045
2.
Sivaswamy, Swetha.
Industrial applications of principles of green chemistry.
Degree: MS, Chemical Engineering, 2012, Georgia Tech
URL: http://hdl.handle.net/1853/44776
► Cross-linked polyethylene has higher upper use temperature than normal polyethylene and is used as an insulating material for electricity carrying cables and hot water pipes.…
(more)
▼ Cross-linked polyethylene has higher upper use temperature than normal polyethylene and is used as an insulating material for electricity carrying cables and hot water pipes. The most common method of inducing crosslinks is by reaction with silanes. After incorporation of silanes into polyethylene and upon hydrolysis with ambient moisture or with hot water, Si-O-Si crosslinks are formed between the various linear polyethylene chains. Industrially, this reaction is performed routinely. However, the efficiency of this reaction with respect to the silane is low and control of product distribution is difficult. A precise fundamental understanding is necessary to be able to manipulate the reactions and thus, allow for the facile processing of the polymers. Hydrocarbon models of polymers - heptane, dodecane - are being used to study this reaction in the laboratory. For the reaction, vinyltrimethoxysilane is used as the grafting agent along with di-tert-butyl peroxide as the radical initiator. MALDI, a mass spectrometric technique is used for the analysis of the product distribution after work-up. Advanced NMR techniques (COSY, HSQC, DEPT, APT, HMBC) are being conducted on the grafted hydrocarbon compounds to gain an in-depth understanding of the mechanism and regiochemistry of the grafting reaction.
Scalable and cost effective methods to capture CO2 are important to counterbalance some of the global impact of the combustion of fossil fuels on climate change. The main options available now include absorption, adsorption and membrane technology. Amines, especially monoethanolamine, have been the most commercialized technology. However, it is not without disadvantages. House et al have investigated the energy penalty involved in the post-combustion CO2 capture and storage from coal-fired power plants and found that 15-20% reduction in the overall electricity usage is necessary to offset the penalty from capturing and storing 80% of United States coal fleet's CO2 emssions1. Novel non-aqueous amine solvents, developed by the Eckert
Liotta group, react with CO2 to form ionic liquids. The ionic liquids readily desorb CO2 upon heating, regenerating the reactive amines and this cycle can be carried out multiple times. An iterative procedure is being adopted to develop amine solvents for CO2 capture. Thermodynamic information like reversal temperature and boiling point of the solvents are collected; they are then used to formulate structure property relationships which allow for new molecules to be engineered. On reaction with CO2, there is a sharp increase in viscosity which is unfavorable from a processing standpoint. Many approaches to mitigate and control viscosity are being studied as well.
1House et al, Energy Environ Sci, 2009, 2, 193-205
Advisors/Committee Members: Dr Charles Eckert (Committee Chair), Dr Charles Liotta (Committee Co-Chair), Dr Amyn Teja (Committee Member).
Subjects/Keywords: Green chemistry; Sustainability; Solvents; Silane grafting; Environmental chemistry Industrial applications; Silane compounds
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sivaswamy, S. (2012). Industrial applications of principles of green chemistry. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/44776
Chicago Manual of Style (16th Edition):
Sivaswamy, Swetha. “Industrial applications of principles of green chemistry.” 2012. Masters Thesis, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/44776.
MLA Handbook (7th Edition):
Sivaswamy, Swetha. “Industrial applications of principles of green chemistry.” 2012. Web. 16 Jan 2021.
Vancouver:
Sivaswamy S. Industrial applications of principles of green chemistry. [Internet] [Masters thesis]. Georgia Tech; 2012. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/44776.
Council of Science Editors:
Sivaswamy S. Industrial applications of principles of green chemistry. [Masters Thesis]. Georgia Tech; 2012. Available from: http://hdl.handle.net/1853/44776
3.
Momin, Farhana.
Reaction of sulfur dioxide (SO2) with reversible ionic liquids (RevILs) for carbon dioxide (CO2) capture.
Degree: MS, Chemical Engineering, 2012, Georgia Tech
URL: http://hdl.handle.net/1853/47525
► Silylated amines, also known as reversible ionic liquids (RevILs), have been designed and structurally modified by our group for potential use as solvents for CO₂…
(more)
▼ Silylated amines, also known as reversible ionic liquids (RevILs), have been designed and structurally modified by our group for potential use as solvents for CO₂ capture from flue gas. An ideal CO₂ capture ionic liquid should be able to selectively and reversibly capture CO₂ and have tolerance for other components in flue gas, including SO₂, NO₂, and O₂. In this project, we study the reactivity, selectivity, uptake capacity, and reversibility of RevILs in the presence of pure SO₂ and mixed gas streams tosimulate flue gas compositions. Tripropylsilylamine (TPSA), a candidate CO₂ capture RevIL, reacts with pure SO₂ to form an ionic liquid consisting of an ammonium group and a salfamate group, supported by IR and NMR results. The resulting IL with pure SO₂ partially reverses when heated to temperatures of upto 500 C in the TGA. TGA analysis of the ionic liquid formed from a 4 vol% SO₂ in CO₂ mixture indicates a possible reversal temperature in the 86-163 C range.
Advisors/Committee Members: Charles Eckert (Committee Chair), Charles Liotta (Committee Co-Chair), F. Joseph Schork (Committee Member).
Subjects/Keywords: Reversibility; Carbon dioxide capture; Sulfur dioxide; Ionic liquid; Carbon dioxide mitigation; Carbon dioxide; Gases—Separation
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Momin, F. (2012). Reaction of sulfur dioxide (SO2) with reversible ionic liquids (RevILs) for carbon dioxide (CO2) capture. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/47525
Chicago Manual of Style (16th Edition):
Momin, Farhana. “Reaction of sulfur dioxide (SO2) with reversible ionic liquids (RevILs) for carbon dioxide (CO2) capture.” 2012. Masters Thesis, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/47525.
MLA Handbook (7th Edition):
Momin, Farhana. “Reaction of sulfur dioxide (SO2) with reversible ionic liquids (RevILs) for carbon dioxide (CO2) capture.” 2012. Web. 16 Jan 2021.
Vancouver:
Momin F. Reaction of sulfur dioxide (SO2) with reversible ionic liquids (RevILs) for carbon dioxide (CO2) capture. [Internet] [Masters thesis]. Georgia Tech; 2012. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/47525.
Council of Science Editors:
Momin F. Reaction of sulfur dioxide (SO2) with reversible ionic liquids (RevILs) for carbon dioxide (CO2) capture. [Masters Thesis]. Georgia Tech; 2012. Available from: http://hdl.handle.net/1853/47525
4.
Phun, Lien Hoang.
Innovative approaches to carbocyclic and heterocyclic compounds using strained carbocycles.
Degree: PhD, Chemistry and Biochemistry, 2013, Georgia Tech
URL: http://hdl.handle.net/1853/47542
► Natural products and small molecules play a major role in drug development. However, using natural products as a source of medicine comes with many challenges,…
(more)
▼ Natural products and small molecules play a major role in drug development. However, using natural products as a source of medicine comes with many challenges, such as lack of natural abundance and difficulty in isolation. Consequently, synthetic organic chemistry is a solution in order to access these compounds in usable quantities. However, synthetic chemisty comes with its own challenges such as efficiency, chemoselectivity, stereoselectivity and enantioselectivity. Therefore, synthetic tools that addresses these challenges are required solve these limitations. This thesis discusses new methodologies using strained carbocycles (cyclopropanes and cyclopropenes) as the reactive subunit for the construction of different carbocyclic and heterocyclic compounds. The homo-Nazarov cyclization of alkenyl and heteroaryl cyclopropyl ketones was used in order to construct cyclohexenones, cyclohexenols, heteroaryl ring-fused cyclohexenones, dihydrofurans, furans and furanones in a mild and efficient manner. Benzofused heteroaromatic compounds were achieved via the Lewis acid-catalyzed cycloisomerization of cyclopropene-3,3-dicarbonyls and furan-3-carboxylates. These heteroaromatic compounds can be applied to medicinal chemistry and material science.
Advisors/Committee Members: [email protected] (Committee Chair), charles liotta (Committee Member), christoph fahrni (Committee Member), david collard (Committee Member), julia kubanek (Committee Member).
Subjects/Keywords: Furans; Carbocycles; Heterocycles; Cyclopropane; Cyclopropene; Diazo; Drug development; Pharmacognosy
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Phun, L. H. (2013). Innovative approaches to carbocyclic and heterocyclic compounds using strained carbocycles. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/47542
Chicago Manual of Style (16th Edition):
Phun, Lien Hoang. “Innovative approaches to carbocyclic and heterocyclic compounds using strained carbocycles.” 2013. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/47542.
MLA Handbook (7th Edition):
Phun, Lien Hoang. “Innovative approaches to carbocyclic and heterocyclic compounds using strained carbocycles.” 2013. Web. 16 Jan 2021.
Vancouver:
Phun LH. Innovative approaches to carbocyclic and heterocyclic compounds using strained carbocycles. [Internet] [Doctoral dissertation]. Georgia Tech; 2013. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/47542.
Council of Science Editors:
Phun LH. Innovative approaches to carbocyclic and heterocyclic compounds using strained carbocycles. [Doctoral Dissertation]. Georgia Tech; 2013. Available from: http://hdl.handle.net/1853/47542
5.
Li, Yang.
Application of cellulose nanowhisker and lignin in preparation of rigid polyurethane nanocomposite foams.
Degree: PhD, Chemistry and Biochemistry, 2012, Georgia Tech
URL: http://hdl.handle.net/1853/44746
► Cellulose nanowhisker (CNW) prepared by acid hydrolysis of softwood Kraft pulp was incorporated as nanofiller in rigid polyurethane (PU) foam synthesis. The density, morphology, chemical…
(more)
▼ Cellulose nanowhisker (CNW) prepared by acid hydrolysis of softwood Kraft pulp was incorporated as nanofiller in rigid polyurethane (PU) foam synthesis. The density, morphology, chemical structure, mechanical properties and thermal behavior of the products were characterized. The nanocomposites exhibited better performance especially at high CNW¡¯s content which was probably due to the high specific strength and aspect ratio of CNW, the hydrogen bonding and crosslinking between CNW and polymer matrix, a higher crosslinking density compared to the control, and the function of CNW as an insulator and mass transfer insulator. Lignin polyol was synthesized through oxypropylation and used for rigid PU foam preparation. The density, morphology, chemical structure, compressive property and thermal behavior of the product were characterized. Lingin-based rigid PU foam showed improved compressive property compared to its commercial counterpart. Ethanol organosolv lignin-based PU showed a slightly stronger compressive property than Kraft lignin-based PU. The enhancement was primarily attributed to the rigid phenolic structure and the high hydroxyl functionality of lignin. Lignin-based PU generated more char than common PUs which was possibly related to the better flame retardant property. This study provided an alternative way to valorize the two most abundant biopolymers and resulted in relatively environmentally benign rigid PU nanocomposite foam.
Advisors/Committee Members: Ragauskas, Arthur (Committee Chair), Charles, Liotta (Committee Member), Deng, Yulin (Committee Member), France, Stefan (Committee Member), Singh, Preet (Committee Member).
Subjects/Keywords: Mechanical properties; Thermal properties; Cellulose nanowhisker; Lignin; Rigid polyurethane foam; Nanocomposite; Polyurethanes; Nanocomposites (Materials); Nanoparticles
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, Y. (2012). Application of cellulose nanowhisker and lignin in preparation of rigid polyurethane nanocomposite foams. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/44746
Chicago Manual of Style (16th Edition):
Li, Yang. “Application of cellulose nanowhisker and lignin in preparation of rigid polyurethane nanocomposite foams.” 2012. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/44746.
MLA Handbook (7th Edition):
Li, Yang. “Application of cellulose nanowhisker and lignin in preparation of rigid polyurethane nanocomposite foams.” 2012. Web. 16 Jan 2021.
Vancouver:
Li Y. Application of cellulose nanowhisker and lignin in preparation of rigid polyurethane nanocomposite foams. [Internet] [Doctoral dissertation]. Georgia Tech; 2012. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/44746.
Council of Science Editors:
Li Y. Application of cellulose nanowhisker and lignin in preparation of rigid polyurethane nanocomposite foams. [Doctoral Dissertation]. Georgia Tech; 2012. Available from: http://hdl.handle.net/1853/44746
6.
Charney, Reagan R.
Coupling reactions and separations for improved synthetic processes.
Degree: PhD, Chemistry and Biochemistry, 2008, Georgia Tech
URL: http://hdl.handle.net/1853/26675
► This thesis showcases a work that focused on developing processes with improved economic and environmental signatures. It illustrates the strengths of chemists and chemical engineers…
(more)
▼ This thesis showcases a work that focused on developing processes with improved economic and environmental signatures. It illustrates the strengths of chemists and chemical engineers working together towards sustainable solutions. The joint collaboration between Drs.
Liotta and Eckert allows the combination of disciplines to overcome economic and environment obstacles. This thesis depicts the application of chemical engineering and chemistry for industrial processes towards reducing cost and environmental impact.
In chapter 2, a synthetic sequence yielding a pharmaceutical precursor was optimized for continuous processing. The precursor was for the pharmaceutical drug Ro 31-8959, which acts as a human immunodeficiency virus (HIV) protease inhibitor. A continuous flow reactor was designed, built and utilized successfully for the two-step reaction of the diazoketone pharmaceutical precursor, (1-benzyl-3-chloro-2-hydroxy-propyl)-carbamic acid tert-butyl ester. The best configuration for the continuous flow reactor involved a single and double coiled stainless steel reactor packed with glass beads. The yield obtained for the diazoketone was quantitative.
In chapter 3, the cleavable surfactant (cleavable surfactants decompose in non-surface active ingredients upon stimulus), n-octyl thiirane oxide was synthesized, characterized and its surface activity and loss of surface activity upon heating was demonstrated. The n-octyl thiirane oxide surfactant activity was measured using a dye, Suddan III, and compared to a commercially available surfactant sodium dodecyl sulfate.
In chapter 4, 5-amino-1H-tetrazole was synthesized using two novel synthetic routes starting from benign chemicals. Both routes involved Sharpless click chemistry in the first step to form the tetrazole ring. Both routes also used hydrogen transfer as the last step for the formation of the 5-amino-1H-tetrazole. These syntheses eliminated the use of highly toxic and/or explosive chemicals such as cyanamide, hydrazoic acid, and hydrazine.
Finally in chapter 5, phase transfer catalysis was used as a means to improve reaction rates and yields between a siloxylated reagent (in the liquid phase) and insoluble ionic reagents (in the solid phase). The activity of commercial phase transfer catalysts like tetra-n-butylammonium bromide was compared to the activity of two novel custom-made siloxylated phase transfer catalysts. Surprisingly, the tetra-n-butylammonium resulted in superior rate constants to the custom made siloxylated phase transfer catalysts.
Advisors/Committee Members: Dr. Charles Liotta (Committee Chair), Dr. Charles Eckert (Committee Co-Chair), Dr. David Collard (Committee Member), Dr. Facundo Fernandez (Committee Member), Dr. Rigoberto Hernandez (Committee Member).
Subjects/Keywords: 5-aminotetrazole; Cleavable surfactants; Siloxylated aminoacids; Continuous flow reactor; PTC; Metabolomics; Reactivity (Chemistry); Sustainable engineering; Technology transfer
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Charney, R. R. (2008). Coupling reactions and separations for improved synthetic processes. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/26675
Chicago Manual of Style (16th Edition):
Charney, Reagan R. “Coupling reactions and separations for improved synthetic processes.” 2008. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/26675.
MLA Handbook (7th Edition):
Charney, Reagan R. “Coupling reactions and separations for improved synthetic processes.” 2008. Web. 16 Jan 2021.
Vancouver:
Charney RR. Coupling reactions and separations for improved synthetic processes. [Internet] [Doctoral dissertation]. Georgia Tech; 2008. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/26675.
Council of Science Editors:
Charney RR. Coupling reactions and separations for improved synthetic processes. [Doctoral Dissertation]. Georgia Tech; 2008. Available from: http://hdl.handle.net/1853/26675
Georgia Tech
7.
Sanii, Laurie Shireen.
Application of Spectroscopy to Protein Characterization.
Degree: PhD, Chemistry and Biochemistry, 2005, Georgia Tech
URL: http://hdl.handle.net/1853/7641
► There are two contributions of this thesis. The first contribution, described in chapters one through six, involves studing the relationship between the protein packing structure…
(more)
▼ There are two contributions of this thesis. The first contribution, described in chapters one through six, involves studing the relationship between the protein packing structure of bacteriorhodopsin (bR) and its function as a proton pump. In 2002, a novel crystallization method published by Bowie and Farham resulted in an unusual antiparallel monomeric packing structure of bicelle bacteriorhodopsin (bcbR) crystals, the spectroscopic properties of which had not been studied. In this thesis, these bicelle bR crystals are investigated to better understand how the changes in the protein tertiary structure affect the function. Specifically: Does the retinal Schiff base retain its ability to isomerize in this unusual protein packing structure of bR? How is the hydration of its binding pocket affected? Does the protein retain the ability to undergo the photocycle and pump protons? If so, how are the rates of the deprotonation/reprotonation of the Schiff base affected by the antiparallel monomer packing structure of the protein? Is Asp85 still the proton acceptor during the deprotonation process of the photocycle? The second contribution of the thesis, described in chapter seven, describes the surface attachment and growth of the biofilm formed by the pathogenic bacterium Streptococcus pneumoniae using attenuated total reflection/Fourier transform infrared spectroscopy (ATR/FTIR). This organism was chosen for its clinical significance; it is one of the organisms suspected in forming biofilms in individuals who develop otitis media, one of the most common causes of ear infections of childhood. In contrast to previous ATR/FTIR experiments examining the formation of biofilms on surfaces, this method is unique in that it combines two techniques - ATR/FTIR and Epifluorescence microscopy which when used together allow for the simultaneous monitoring of the IR spectrum of the S. pneumoniae biofilm as it develops and as provides a method for quantifying total and viable cell counts at various stages during the development.
Advisors/Committee Members: Dr. Mostafa El-Sayed (Committee Chair), Charles Liotta (Committee Member), Dr. John Zhang (Committee Member), Dr. Laren Tolbert (Committee Member), Dr. Mohan Srinivasarao (Committee Member).
Subjects/Keywords: Bacteriorhodopsin; Bicelle; Crystals; Raman; FTIR; Raman spectroscopy; Spectrum analysis; Bacteriorhodopsin; Crystals; Fourier transform infrared spectroscopy; Proteins Analysis
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sanii, L. S. (2005). Application of Spectroscopy to Protein Characterization. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/7641
Chicago Manual of Style (16th Edition):
Sanii, Laurie Shireen. “Application of Spectroscopy to Protein Characterization.” 2005. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/7641.
MLA Handbook (7th Edition):
Sanii, Laurie Shireen. “Application of Spectroscopy to Protein Characterization.” 2005. Web. 16 Jan 2021.
Vancouver:
Sanii LS. Application of Spectroscopy to Protein Characterization. [Internet] [Doctoral dissertation]. Georgia Tech; 2005. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/7641.
Council of Science Editors:
Sanii LS. Application of Spectroscopy to Protein Characterization. [Doctoral Dissertation]. Georgia Tech; 2005. Available from: http://hdl.handle.net/1853/7641
Georgia Tech
8.
Carlise, Joseph Raymond.
Poly(norbornene) supported side-chain coordination complexes: an efficient route to functionalized polymers.
Degree: PhD, Chemistry and Biochemistry, 2006, Georgia Tech
URL: http://hdl.handle.net/1853/10571
► This thesis begins with a brief overview of current strategies used in the synthesis of side-chain functionalizad polymers and materials. The discussion then focuses more…
(more)
▼ This thesis begins with a brief overview of current strategies used in the synthesis of side-chain functionalizad polymers and materials. The discussion then focuses more explicitly on transition metal-based motifs and methodologies that are employed in polymer functionalization and continues with a more detailed overview of this field.
The primary hypothesis that is addressed herein is that combining the versatility and strength of metal-ligand interactions with the efficiency and functional group tolerance of ROMP comprises a useful method of generating a variety of functionalized polymers and materials via side-chain metal coordination. Thus, the goal is to test this hypothesis by synthesizing functionalized polymers with a range of useful properties to demonstrate the relevance and importance of this methodology, by employing several different strategies to show the synthetic ease by which the materials can be realized.
The strategies and methods discussed in the synthesis of side-chain functionalized polymers are divided into three subgroups: (1) pre-polymerization functionalization, in which all of the modifications take place on the monomer with polymerization as the last step, (2) post-polymerization functionalization, in which the polymer itself is subsequently modified, and (3) combinations of the first two strategies.
It is shown that useful functional polymers and materials can be synthesized by any of the above strategies, and representative examples of each are given in both the introduction and in the body of work presented.
Modes of functionalization are all based on transition metal coordination, and polymerizations are primarily carried out via ROMP. Metal coordination is shown to be a useful technique for functionalizing polymers, to creating supported emissive complexes, to modulating solution viscosity.
Finally, conclusions are drawn regarding the various strategies presented herein, and potential future directions are discussed.
Advisors/Committee Members: Prof. Marcus Weck (Committee Chair), Prof. Charles Liotta (Committee Member), Prof. David Collard (Committee Member), Prof. Kent Barefield (Committee Member), Prof. Will Rees (Committee Member).
Subjects/Keywords: ATRP; Bipyridine; Chelation; Copolymers; Functional materials; Graft; Guar; Hydrolysis; Iridium; Ligands; Luminescent polymers; OLED; Photoluminescence; Photoluminescent; Polymerization; Polymers synthesis; ROMP; Ruthenium; Transition metal; Transition metal complexes; Viscosity
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Carlise, J. R. (2006). Poly(norbornene) supported side-chain coordination complexes: an efficient route to functionalized polymers. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/10571
Chicago Manual of Style (16th Edition):
Carlise, Joseph Raymond. “Poly(norbornene) supported side-chain coordination complexes: an efficient route to functionalized polymers.” 2006. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/10571.
MLA Handbook (7th Edition):
Carlise, Joseph Raymond. “Poly(norbornene) supported side-chain coordination complexes: an efficient route to functionalized polymers.” 2006. Web. 16 Jan 2021.
Vancouver:
Carlise JR. Poly(norbornene) supported side-chain coordination complexes: an efficient route to functionalized polymers. [Internet] [Doctoral dissertation]. Georgia Tech; 2006. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/10571.
Council of Science Editors:
Carlise JR. Poly(norbornene) supported side-chain coordination complexes: an efficient route to functionalized polymers. [Doctoral Dissertation]. Georgia Tech; 2006. Available from: http://hdl.handle.net/1853/10571
Georgia Tech
9.
Blasucci, Vittoria Madonna.
Organic solvents for catalysis and organic reactions.
Degree: PhD, Chemical Engineering, 2009, Georgia Tech
URL: http://hdl.handle.net/1853/31723
► We develop, characterize, and apply novel solvent systems for enhanced separations. The field of separations has long been explored by chemical engineers. One way to…
(more)
▼ We develop, characterize, and apply novel solvent systems for enhanced separations. The field of separations has long been explored by chemical engineers. One way to optimize separations is through solvent manipulation. Through molecular design, smart solvents can be created which accomplish this task. Smart solvents undergo step or gradual changes in properties when activated by a stimulus. These property changes enable unique chemistry and separations. This thesis explores the application of two different types of smart solvents: switchable and tunable solvents. First we show that a neutral liquid can react with carbon dioxide and be switched into an ionic liquid which can then be thermally reversed back to its molecular form. Each form that the solvent takes has unique properties that can be structurally tuned to span a large range. We also look at a tunable solvent system based on polyethylene glycol/dioxane that is initially homogeneous, but induced to a heterogeneous system through carbon dioxide pressurization. Finally, we look at the advantage of using carbon dioxide as a co-solvent that is easily removed post-reaction for the grafting of silanes onto polyolefin backbones.
Advisors/Committee Members: Charles Eckert (Committee Chair), Charles Liotta (Committee Co-Chair), Amyn Teja (Committee Member), Christopher Jones (Committee Member), William Koros (Committee Member).
Subjects/Keywords: Smart solvents; Reversible ionic liquids; Alternative solvents; Tunable solvents; Polymer grafting; Amines; Solvents; Organic compounds
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Blasucci, V. M. (2009). Organic solvents for catalysis and organic reactions. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/31723
Chicago Manual of Style (16th Edition):
Blasucci, Vittoria Madonna. “Organic solvents for catalysis and organic reactions.” 2009. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/31723.
MLA Handbook (7th Edition):
Blasucci, Vittoria Madonna. “Organic solvents for catalysis and organic reactions.” 2009. Web. 16 Jan 2021.
Vancouver:
Blasucci VM. Organic solvents for catalysis and organic reactions. [Internet] [Doctoral dissertation]. Georgia Tech; 2009. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/31723.
Council of Science Editors:
Blasucci VM. Organic solvents for catalysis and organic reactions. [Doctoral Dissertation]. Georgia Tech; 2009. Available from: http://hdl.handle.net/1853/31723
Georgia Tech
10.
Nassif, Laurent.
Accelerating treatment of radioactive waste by evaporative fractional crystallization.
Degree: PhD, Chemical Engineering, 2009, Georgia Tech
URL: http://hdl.handle.net/1853/33868
► The purpose of the work described in this thesis was to explore the use of fractional crystallization as a technology that can be used to…
(more)
▼ The purpose of the work described in this thesis was to explore the use of fractional crystallization as a technology that can be used to separate medium-curie waste from the Hanford Site tank farms into a high-curie waste stream, which can be sent to a Waste Treatment and Immobilization Plant (WTP), and a low-curie waste stream, which can be sent to Bulk Vitrification. The successful semi-batch crystallization of sodium salts from two single shell tank simulant solutions (SST Early Feed, SST Late Feed) demonstrated that the recovered crystalline product met the purity requirement for exclusion of cesium, sodium recovery in the crystalline product and the requirement on the sulfate-to-sodium molar ratio in the stream to be diverted to the WTP. The experimental apparatus, procedures and results obtained in this thesis on scaled-down experiments of SST Early and Late Feed simulated solutions were adapted and reproduced under hot-cell with actual wastes by our partners at Hanford. To prepare the application of the pretreatment process to pilot scale process, several varation to the feed solutions were investigated including the presence of carboxylates and amines organics compounds and solids particles. Results of the study showed that 4 organics species presented complications to the process (NTA, HEDTA, EDTA and sodium citrate) while the other species (Formate, acetate, glycolate and IDA) and solids particles did not in the conditions of the stored wastes.
In this thesis, the kinetics of the crystalline species formed at the condition of the early feed certification run (66 °C and 25 g/h evaporation) were determined along with the effect of the operating temperature and evaporation rate on these kinetics. On one hand, the study of evaporation rate values ranging from 25g/h to 75g/h showed that an increase in evaporation rate increased the specific nucleation while decreasing the specific growth rate. On the other hand, experiments on operating temperature ranging from 35 °C to 75 °C displayed that the nucleation rate of all species increased with temperature at the exception of sodium carbonate monohydrate and burkeite crystals, and that the growth rate of all species increased with temperature at the exception of sodium nitrate. Furthermore, sulfate based crystals such as trisodium fluoride sulfate were only roduced at 45 °C and 75 °C.
A simple steady state MSMPR population balance model was developed expressing the total population density function as the sum of the specific population density functions. The specific semi-batch crystallization kinetics were implemented in this model.
Advisors/Committee Members: Ronald W Rousseau (Committee Chair), Amyn S Teja (Committee Member), Charles Liotta (Committee Member), matthew realff (Committee Member), Sankar Nair (Committee Member).
Subjects/Keywords: Multi-salts; Simulant testing; MSMPR; Nucleation and growth rates; Multi-solute; SST early and late feed; Crystallization; Evaporative fractional crystallization; Nuclear waste pretreatment; Cesium removal; Hanford; Radioactive waste disposal; Radioactive wastes Vitrification; Radioactive wastes Washington (State) Hanford Site; Cesium
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nassif, L. (2009). Accelerating treatment of radioactive waste by evaporative fractional crystallization. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/33868
Chicago Manual of Style (16th Edition):
Nassif, Laurent. “Accelerating treatment of radioactive waste by evaporative fractional crystallization.” 2009. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/33868.
MLA Handbook (7th Edition):
Nassif, Laurent. “Accelerating treatment of radioactive waste by evaporative fractional crystallization.” 2009. Web. 16 Jan 2021.
Vancouver:
Nassif L. Accelerating treatment of radioactive waste by evaporative fractional crystallization. [Internet] [Doctoral dissertation]. Georgia Tech; 2009. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/33868.
Council of Science Editors:
Nassif L. Accelerating treatment of radioactive waste by evaporative fractional crystallization. [Doctoral Dissertation]. Georgia Tech; 2009. Available from: http://hdl.handle.net/1853/33868
Georgia Tech
11.
Meyers, Amy.
The Design and Synthesis of Metal-Functionalized Poly(norbornenes) for Potential Use in Light-Emitting Diodes.
Degree: PhD, Chemistry and Biochemistry, 2004, Georgia Tech
URL: http://hdl.handle.net/1853/6985
► The use of polymers in electro-optical devices, especially light-emitting diodes (OLEDs), has become very popular in recent years, due to their ease of processability. The…
(more)
▼ The use of polymers in electro-optical devices, especially light-emitting diodes (OLEDs), has become very popular in recent years, due to their ease of processability. The major drawback of using polymers in these systems is their time-consuming synthesis when trying to improve upon their physical properties. For example, each time a new color or better conducting properties are desired, a new monomer must be synthesized. To circumvent these problems, the system described in this work is designed to connect the well-known chromophore aluminum tris(8-hydroxyquinoline) (Alq3) to a norbornene monomer unit, followed by polymerization using ring-opening metathesis polymerization (ROMP), thus allowing for the processability of a polymer while maintaining the fluorescent properties of the metalloquinolate.
The benefit of this system is that the monomers can be easily altered in order to tune color emission or to enhance the polymer properties. Some of the alterations include changing the metal center from aluminum to zinc in order to improve electron injection, adding substituents to the 8-hydroxyquinoline ligand in order to tune the emission color, and copolymerizing the Alq3-monomer with other norbornene monomers containing either a hole- or an electron-transport material side-chain to improve conductivity. These alterations lead to improved device performance and, more importantly, to a new method of designing polymeric systems for use in electronic devices.
Advisors/Committee Members: Marcus Weck (Committee Chair), Charles Liotta (Committee Member), Christopher Jones (Committee Member), David Collard (Committee Member), E. Kent Barefield (Committee Member).
Subjects/Keywords: Metaloquinolates; Fluorescent polymers; Poly(norbornenes); Light emitting diodes; Organic thin films; Fluorescent polymers
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Meyers, A. (2004). The Design and Synthesis of Metal-Functionalized Poly(norbornenes) for Potential Use in Light-Emitting Diodes. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/6985
Chicago Manual of Style (16th Edition):
Meyers, Amy. “The Design and Synthesis of Metal-Functionalized Poly(norbornenes) for Potential Use in Light-Emitting Diodes.” 2004. Doctoral Dissertation, Georgia Tech. Accessed January 16, 2021.
http://hdl.handle.net/1853/6985.
MLA Handbook (7th Edition):
Meyers, Amy. “The Design and Synthesis of Metal-Functionalized Poly(norbornenes) for Potential Use in Light-Emitting Diodes.” 2004. Web. 16 Jan 2021.
Vancouver:
Meyers A. The Design and Synthesis of Metal-Functionalized Poly(norbornenes) for Potential Use in Light-Emitting Diodes. [Internet] [Doctoral dissertation]. Georgia Tech; 2004. [cited 2021 Jan 16].
Available from: http://hdl.handle.net/1853/6985.
Council of Science Editors:
Meyers A. The Design and Synthesis of Metal-Functionalized Poly(norbornenes) for Potential Use in Light-Emitting Diodes. [Doctoral Dissertation]. Georgia Tech; 2004. Available from: http://hdl.handle.net/1853/6985
. 
Open Access Theses and Dissertations
