Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

Sorted by: relevance · author · university · dateNew search

You searched for subject:(isocyanurate). Showing records 1 – 3 of 3 total matches.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters

1. Triadon, Amédée. Octupolar platforms for applications in non linear optics : Plateformes octupolaires pour des applications en optique non linéaire.

Degree: Docteur es, Chimie, 2017, Rennes 1; Australian national university

Au cours de cette thèse nous avons synthétisé et étudié les propriétés d'optique linéaire et non linéaire d'octupôles 2D. Ce type d'assemblage moléculaire est connu pour posséder de bonnes propriétés d'optique non linéaire de troisième ordre, et plus particulièrement de bonnes propriétés d'absorption à deux photons (ADP). Dans ce travail, nous nous sommes plus particulièrement intéressés aux octupôles 2D à cœur isocyanurate et triazine. Les isocyanurates ont été peu étudiés pour leurs propriétés d'optique non linéaire, bien que des premiers résultats les placent comme des structures très prometteuses, tandis que les triazines sont plus reconnues pour leurs bonnes propriétés d'absorption à deux photons. Dans une première partie, une série de composés organiques à cœur isocyanurate a été synthétisé et leurs propriétés d'optique linéaire et non linéaire ont été étudiées. Ayant pu établir des relations structure/propriétés à partir de ces premières séries de molécules nous avons ensuite synthétisé une nouvelle famille d'analogues à cœur triazine possédant les mêmes groupements électro-donneurs que ceux de la série isocyanurate, afin de pouvoir comparer l'effet de cœur entre ces deux familles. Cette étude comparative nous a permis de sélectionner deux chromophores candidats pour une des applications de l'absorption à deux photons, la thérapie photodynamique à deux photons (2PPDT). Dans une deuxième partie, nous nous sommes attachés à la synthèse de dérivés hydrosolubles pour la thérapie photodynamique à deux photons. Les propriétés de photosensibilisation et biocompatibilité de ces composés ont pu être testées in vitro et in vivo grâce à une collaboration avec le groupe de Magali Gary-Bobo et Marcel Garcia (UMR 6247, Montpellier). Enfin, dans une troisième partie, nous avons tiré parti des relations structure/propriétés mises en évidence dans notre étude sur les isocyanurates organiques pour concevoir une série d'octupôles contenant des unités platine cyclométallées. Nous avons ainsi synthétisé et caractérisé une nouvelle série de complexes de platine à cœur isocyanurate, triazine ou triphénylbenzène.

During this Ph.D work, we were able to synthesize a series of 2D octupoles as well as study their linear and nonlinear optical properties. These molecular architectures are known for their good NLO properties, especially their two-photon absorption properties (TPA). In this thesis, we focused most of our work on isocyanurate and triazine cored octupoles. Isocyanurates are quite understudied even though they have recently proven to be promising for TPA applications, whereas triazines were already known for their good TPA properties. In this respect we started out by the synthesis and characterization of a series of organic isocyanurates. These compounds allowed us to derive useful structure/property relationships. We also synthesized a series of analogous triazines possessing the same donor groups than the isocyanurate series, in order to be able to compare the effect of the core in these two series. This study allowed us…

Advisors/Committee Members: Mongin, Olivier (thesis director), Humphrey, Mark G. (thesis director).

Subjects/Keywords: Optique non linéaire; Absorption à deux photons; Isocyanurate; Bioimagerie; Organoplatine; Non linear optics; Octupolar platforms

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Triadon, A. (2017). Octupolar platforms for applications in non linear optics : Plateformes octupolaires pour des applications en optique non linéaire. (Doctoral Dissertation). Rennes 1; Australian national university. Retrieved from http://www.theses.fr/2017REN1S109

Chicago Manual of Style (16th Edition):

Triadon, Amédée. “Octupolar platforms for applications in non linear optics : Plateformes octupolaires pour des applications en optique non linéaire.” 2017. Doctoral Dissertation, Rennes 1; Australian national university. Accessed November 19, 2019. http://www.theses.fr/2017REN1S109.

MLA Handbook (7th Edition):

Triadon, Amédée. “Octupolar platforms for applications in non linear optics : Plateformes octupolaires pour des applications en optique non linéaire.” 2017. Web. 19 Nov 2019.

Vancouver:

Triadon A. Octupolar platforms for applications in non linear optics : Plateformes octupolaires pour des applications en optique non linéaire. [Internet] [Doctoral dissertation]. Rennes 1; Australian national university; 2017. [cited 2019 Nov 19]. Available from: http://www.theses.fr/2017REN1S109.

Council of Science Editors:

Triadon A. Octupolar platforms for applications in non linear optics : Plateformes octupolaires pour des applications en optique non linéaire. [Doctoral Dissertation]. Rennes 1; Australian national university; 2017. Available from: http://www.theses.fr/2017REN1S109


Kent State University

2. Grudzien, Rafal M. Synthesis and characterization of ordered cage-like siliceous mesostructures with organic pendant and bridging groups.

Degree: PhD, College of Arts and Sciences / Department of Chemistry, 2008, Kent State University

Ordered cage-like mesoporous materials were synthesized and characterized in terms of their surface, structural and adsorption properties. This dissertation covers three major topics devoted to the synthesis of cage-like silicas and organosilicas. The first topic involves the improvement of synthesis conditions of cage-like silicas such as SBA-16 and FDU-1. Special emphasis was given to the study of influence of different synthesis parameters, such as variations of the TEOS/template ratio, inorganic salt, the self-assembly time, and template removal procedure. It was shown that in order to obtain FDU-1 with uniform pore entrances, large cage diameter and high pore volume, optimal triblock copolymer/silica and salt/template ratios should be within 135:1 and 2.5:1, respectively. In addition, the first synthesis step can be shortened to six hours of the original 24 without diminishing the quality of the resulting FDU-1 materials. A two-step template removal method that combines partial extraction and temperature-controlled calcination was demonstrated to be an effective way for complete removal of the template. The second topic includes the fabrication and characterization of cage-like organosilicas with pendant groups, namely, vinyl, mercaptopropyl, ureidopropyl and imidazole. These organosilicas were prepared by co-condensation of desired organosilane and tetraethyl orthosilicate (TEOS) using the optimal synthesis procedures established for pure silicas. The co-condensation synthesis afforded materials with high loadings of organic groups up to 40%, large pore diameters, and narrow pore size distributions (PSDs). Moreover, the structural transformation from cubic to hexagonal was observed under low acidic conditions, double amount of polymer, and the addition of sodium chloride. The third topic involves the incorporation of bulky isocyanurate bridging groups into periodic mesoporous organosilicas (PMOs) using tris[3-(trimethoxysilyl)propyl]isocyanurate and TEOS. The resulting PMOs possess up to 30% of bridging groups, large pore volume and high surface area. The extraction, however, was insufficient to completely remove the template. An additional heating of extracted PMOs, therefore, was carried out to remove the remaining polymer. The aforementioned materials were characterized by nitrogen and argon adsorption, powder X-ray diffraction, transmission electron microscopy, elemental analysis, high resolution thermogravimetry, and Fourier-transform infrared spectroscopy. Advisors/Committee Members: Jaroniec, Mietek (Committee Chair).

Subjects/Keywords: Chemistry; Materials Science; mesoporous; FDU-1; SBA-16; organosilicas; pendant groups; bridging groups; adsorption; isocyanurate; template removal; cage-like structures

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Grudzien, R. M. (2008). Synthesis and characterization of ordered cage-like siliceous mesostructures with organic pendant and bridging groups. (Doctoral Dissertation). Kent State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=kent1226507948

Chicago Manual of Style (16th Edition):

Grudzien, Rafal M. “Synthesis and characterization of ordered cage-like siliceous mesostructures with organic pendant and bridging groups.” 2008. Doctoral Dissertation, Kent State University. Accessed November 19, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1226507948.

MLA Handbook (7th Edition):

Grudzien, Rafal M. “Synthesis and characterization of ordered cage-like siliceous mesostructures with organic pendant and bridging groups.” 2008. Web. 19 Nov 2019.

Vancouver:

Grudzien RM. Synthesis and characterization of ordered cage-like siliceous mesostructures with organic pendant and bridging groups. [Internet] [Doctoral dissertation]. Kent State University; 2008. [cited 2019 Nov 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1226507948.

Council of Science Editors:

Grudzien RM. Synthesis and characterization of ordered cage-like siliceous mesostructures with organic pendant and bridging groups. [Doctoral Dissertation]. Kent State University; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1226507948

3. Budinski-Simendić Jaroslava. Provera teorija nastajanja i gumolike elastičnosti polimernih mreža na modelnim poli(uretan-izocijanuratnim) sistemima.

Degree: 1996, University of Novi Sad

U radu su prvi put za proveru teorija nastajanja i gumolike elastičnosti polimernih mreža primenjeni modelni poliuretanski sistemi čiji su čvorovi veoma stabilni izocijanurat(heksahidro-1,3,5-triazin- 2,4,6-trion) prstenovi. Rad obuhvata: (1) Sintetezu nekoliko serija homogenih poli(uretan-izocijanuratnih) mreža, na bazi 2.4-TDI i poli(oksipropilen)diola, dvoetapnim postupkom u masi, tj. ciklotrimerizacijom teleheličnih diizocijanata uz katalizator Polycat 41. (2) Sintezu manje savršenih mreža sa nekom definisanom koncentracijom visećih lanaca koja je postignuta uvodenjem monoola dietilenglikol- monometiletra u toku pripreme prepolimera. (3) Odredivanje povoljnih reakcionih uslove svih etapa sinteze uz primenu i modifikaciju postojećih analitičkih postupaka za karakterizaciju svojstava reakcionih komponenti i praćenja reakcija umrežavanja. (4) Procenu mogućih bočnih reakcija u toku nastajanja mreža jer one mogu značajno uticati na raspodelu različitih fragmenata u mrežama praćenjem koncentracija reakcionih proizvoda kod modelnih reakcija u rastvoru uz isti diol i isti katalizator i odgovarajuće mono-funkcionalne izocijanatne komponente. (5) Karakterizaciju svojstava i strukturnih parametara modelnih mreža i to primenom postupaka ekstrakcije i bubrenja, diferencijalne skanirajuće kalorimetrije, fotoelastičnih merenja, dinamičko-mehaničke spektroskopije i merenja napon-istezanje. Izborom nominalne Mn diola od 400 do 4000 postigne gustina umreženja 0.1x10-4mol/cm3 do 10x10-4mol/cm3 sa rasponom temperatura staklastog prelaza od -60°C do +30°C. Za procenu strukturnih parametara mreža primenjena je teorija granajućih procesa sa kaskadnom zamenom za slučaj nastajanja mreža ciklotrimerizacijom i dvoetapni postupak. U zavisnosti od konverzije NCO grupa u mrežama izračunate su masa po monomernoj jedinici, maseni udeo, broj po monomernoj jedinici, koncentracija po jedinici zapremine, Mn, Mw, Mz i Mw/Mn kako za elastično aktivne, osnovne i viseće lance tako i zamolekule sola. Ključni ekspehmentalni podaci koji su korišćeni za proveru teorija nastajanja bio sadržaj gela dobijen višestrukim ekstrakcijama, a za teorije gumolike elastičnosti ravnotežni modul dobijen iz fotoelastičnih merenja. Provera teorija gumolike elastičnosti se zasnivala se u nalaženje vrednosti pred- faktora 3 (tzv. faktora pamćenja) u jednačini koja daje vezu ravnotežnog modula elastičnosti i koncentracije elastično aktivnih lanaca mreže koji ukazuje na način fluktuacije cvorova mreže. Fotoelastična merenja su omogućila da se preko njih parameter pred-faktor 3 proceni pri malim deformacijama. Potvrden je koncept stvarnih mreža sa delimično potisnutim fluktuacijama čvorova uz aditivni doprinos zapletenosti lanaca modulu elastičnosti prema Langley-Graesley konceptu zarobljenih prepletaja.

In this thesis polymer network formation theories and rubber elasticity of polymer networks on model polyurethane systems having as a junction very stable…

Advisors/Committee Members: Stoiljković Dragoslav, Čvorkov Ljubomir, Plavšić Milenko.

Subjects/Keywords: Mreže, poli(uretan-izocijanurati), ciklotrimerizacija, gumolika elastičnost, granajući procesi; network formation, poly(urethane-isocyanurate), cyclotrimerization, rubber elasticity, branching processes

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Jaroslava, B. (1996). Provera teorija nastajanja i gumolike elastičnosti polimernih mreža na modelnim poli(uretan-izocijanuratnim) sistemima. (Thesis). University of Novi Sad. Retrieved from https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153727277315171.pdf?controlNumber=(BISIS)71434&fileName=153727277315171.pdf&id=11954&source=OATD&language=en ; https://www.cris.uns.ac.rs/record.jsf?recordId=71434&source=OATD&language=en

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Jaroslava, Budinski-Simendić. “Provera teorija nastajanja i gumolike elastičnosti polimernih mreža na modelnim poli(uretan-izocijanuratnim) sistemima.” 1996. Thesis, University of Novi Sad. Accessed November 19, 2019. https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153727277315171.pdf?controlNumber=(BISIS)71434&fileName=153727277315171.pdf&id=11954&source=OATD&language=en ; https://www.cris.uns.ac.rs/record.jsf?recordId=71434&source=OATD&language=en.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Jaroslava, Budinski-Simendić. “Provera teorija nastajanja i gumolike elastičnosti polimernih mreža na modelnim poli(uretan-izocijanuratnim) sistemima.” 1996. Web. 19 Nov 2019.

Vancouver:

Jaroslava B. Provera teorija nastajanja i gumolike elastičnosti polimernih mreža na modelnim poli(uretan-izocijanuratnim) sistemima. [Internet] [Thesis]. University of Novi Sad; 1996. [cited 2019 Nov 19]. Available from: https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153727277315171.pdf?controlNumber=(BISIS)71434&fileName=153727277315171.pdf&id=11954&source=OATD&language=en ; https://www.cris.uns.ac.rs/record.jsf?recordId=71434&source=OATD&language=en.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jaroslava B. Provera teorija nastajanja i gumolike elastičnosti polimernih mreža na modelnim poli(uretan-izocijanuratnim) sistemima. [Thesis]. University of Novi Sad; 1996. Available from: https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija153727277315171.pdf?controlNumber=(BISIS)71434&fileName=153727277315171.pdf&id=11954&source=OATD&language=en ; https://www.cris.uns.ac.rs/record.jsf?recordId=71434&source=OATD&language=en

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.