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You searched for +publisher:"Clemson University" +contributor:("Dr. Darryl D. DesMarteau"). Showing records 1 – 2 of 2 total matches.

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Clemson University

1. Hercules, Daniel A. Development of a Pilot-Scale Polymerization Facility and Monomer Preparation for the Determination of Reactivity Ratios for Tetrafluoroethylene (TFE)-Based Copolymers.

Degree: PhD, Chemistry, 2016, Clemson University

The addition of a pilot-scale tetrafluoroethylene (TFE) polymerization facility at Clemson University has enabled this academic institution to not only prepare TFE in kilogram quantities but also to store it and copolymerize it in safe conditions. The facility is used to prepare equimolar mixtures of TFE/CO2 from the pyrolysis of potassium perfluoropropionate in approximately quantitative yields. The TFE is separated from the mixture and stabilized by D-limonene by scrubbing CO2 from the aforementioned mixture. With the development of high technology software and hardware, the facility has been used to study the relative reactivity ratios of various polymerizations systems like the copolymerization of TFE with sulfonyl fluoride-substituted vinyl ethers [(perfluoro-3-oxa-4-pentene sulfonyl fluoride [DOW monomer] and perfluoro-2-(2-fluorosulfonylethoxy) propyl vinyl ether [PSEPVE]), methyl perfluoro(4-oxa-5-hexanoate) (DEVE), and perfluoro 8-cyano-5-methyl-3,6-dioxa-1-octene (8CNVE)], and vinylidene difluoride (VDF), in the presence and absence of CO2. Some results from these studies as well as further details on the facility will be presented. Advisors/Committee Members: Dr. Joseph S. Thrasher, Committee Chair, Dr. Darryl D. DesMarteau, Dr. Stephen E. Creager, Dr. William T. Pennington.

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APA (6th Edition):

Hercules, D. A. (2016). Development of a Pilot-Scale Polymerization Facility and Monomer Preparation for the Determination of Reactivity Ratios for Tetrafluoroethylene (TFE)-Based Copolymers. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2169

Chicago Manual of Style (16th Edition):

Hercules, Daniel A. “Development of a Pilot-Scale Polymerization Facility and Monomer Preparation for the Determination of Reactivity Ratios for Tetrafluoroethylene (TFE)-Based Copolymers.” 2016. Doctoral Dissertation, Clemson University. Accessed October 31, 2020. https://tigerprints.clemson.edu/all_dissertations/2169.

MLA Handbook (7th Edition):

Hercules, Daniel A. “Development of a Pilot-Scale Polymerization Facility and Monomer Preparation for the Determination of Reactivity Ratios for Tetrafluoroethylene (TFE)-Based Copolymers.” 2016. Web. 31 Oct 2020.

Vancouver:

Hercules DA. Development of a Pilot-Scale Polymerization Facility and Monomer Preparation for the Determination of Reactivity Ratios for Tetrafluoroethylene (TFE)-Based Copolymers. [Internet] [Doctoral dissertation]. Clemson University; 2016. [cited 2020 Oct 31]. Available from: https://tigerprints.clemson.edu/all_dissertations/2169.

Council of Science Editors:

Hercules DA. Development of a Pilot-Scale Polymerization Facility and Monomer Preparation for the Determination of Reactivity Ratios for Tetrafluoroethylene (TFE)-Based Copolymers. [Doctoral Dissertation]. Clemson University; 2016. Available from: https://tigerprints.clemson.edu/all_dissertations/2169

2. Parrish, Cameron A. New Advances in Perfluoroalkoxyl Co- and Terpolymers with Tetrafluoroethylene.

Degree: PhD, Chemistry, 2017, Clemson University

Tetrafluoroethylene (TFE) is a well-known and widely used monomer in the fluoropolymer industry. Unfortunately, both the lack of availability and safety concerns with this monomer have restricted its use in academia. Through the use of expired patent technologies from 3M and DuPont, TFE has been safety prepared and used on a kilogram scale with the aid of a new barricade facility at Clemson University. Thus beginning in 2012, a program was undertaken with the goal of preparing and characterizing new perfluoroalkoxy (PFA) resins with potentially increased mechanical strength and wearability. Benchmark PFA copolymers were first prepared by both solution and emulsion polymerization techniques so that a comparison of new co- and terpolymers with commercial grade materials would be feasible. The first aim was the synthesis of aliphatic and olefinic trifluorovinyl-terminal olefins and their terpolymerization with tetrafluoroethylene and perfluoroalkyl trifluorovinyl ethers, the polymers from which could then be subjected to electron beam irradiation for crosslinking as a mean of increasing molecular weight and thus mechanical resistance. In addition, the novel synthesis of a pentafluorosulfanyl-(SF5)-substituted perfluoroalkyl trifluorovinyl ether monomer and its subsequent copolymerization with tetrafluoroethylene to afford the first pentafluorosulfanyl-containing PFA was accomplished. The surface properties of this unique PFA are still under investigation. The synthesis of multifunctional sulfonamide vinyl ether monomers and their subsequent copolymerization with tetrafluoroethylene were also carried out for the development of low equivalent weight (EW) binders for fuel cell applications. Advisors/Committee Members: Dr. Joseph S. Thrasher, Committee Chair, Dr. Darryl D. DesMarteau, Dr. Stephen E. Creager, Dr. William T. Pennington.

Subjects/Keywords: Fluoropolymer; PFA; Tetrafluoroethylene

…53 2.2. New Polymerization Facility at Clemson University… 

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

APA (6th Edition):

Parrish, C. A. (2017). New Advances in Perfluoroalkoxyl Co- and Terpolymers with Tetrafluoroethylene. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/1972

Chicago Manual of Style (16th Edition):

Parrish, Cameron A. “New Advances in Perfluoroalkoxyl Co- and Terpolymers with Tetrafluoroethylene.” 2017. Doctoral Dissertation, Clemson University. Accessed October 31, 2020. https://tigerprints.clemson.edu/all_dissertations/1972.

MLA Handbook (7th Edition):

Parrish, Cameron A. “New Advances in Perfluoroalkoxyl Co- and Terpolymers with Tetrafluoroethylene.” 2017. Web. 31 Oct 2020.

Vancouver:

Parrish CA. New Advances in Perfluoroalkoxyl Co- and Terpolymers with Tetrafluoroethylene. [Internet] [Doctoral dissertation]. Clemson University; 2017. [cited 2020 Oct 31]. Available from: https://tigerprints.clemson.edu/all_dissertations/1972.

Council of Science Editors:

Parrish CA. New Advances in Perfluoroalkoxyl Co- and Terpolymers with Tetrafluoroethylene. [Doctoral Dissertation]. Clemson University; 2017. Available from: https://tigerprints.clemson.edu/all_dissertations/1972

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