Supercritical fluid processing of perfluorinated and sulfonated membranes

dc.contributor.advisor Suleiman Rosado, David Ocasio Velázquez, Mayra College of Engineering en_US
dc.contributor.committee Estévez De Vidts, L. Antonio
dc.contributor.committee Colón Burgos, Guillermo
dc.contributor.committee Aponte Huertas, María A.
dc.contributor.department Department of Chemical Engineering en_US 2018-05-16T16:56:28Z 2018-05-16T16:56:28Z 2004
dc.description.abstract Over the past years, one of the most important challenges facing industry has been the search for environmentally benign and cost effective alternatives to traditional power sources. Many industries invest considerable amount of resources to develop and implement new methods of power production. One of the new technologies under consideration is a proton exchange membrane fuel cell (PEMFC). Nafion is the best-known ionomer membrane used in fuel cell and electrolysis applications due to its excellent chemical and mechanical stability and to its high ionic conductivity. The purpose of this work was to investigate the effects of supercritical fluid processing on the physical properties of Nafion and Styrene-ethylene-butylene-styrene (SEBS) ionomer membranes. Various co- solvents, with different solubility parameters, were employed in the search of improving polymer- scCO2 interaction. In this study, the properties of Nafion and SEBS polymers were investigated by thermal gravimetric analysis. Changes in the degradation temperature of Nafion and SEBS membranes were found as function of co-solvent and processing conditions used. en_US
dc.description.graduationYear 2004 en_US
dc.language.iso en en_US
dc.rights.holder (c) 2004 Mayra Ocasio Velázquez en_US
dc.rights.license All rights reserved en_US
dc.subject Proton exchange membrane fuel cell (PEMFC) en_US
dc.subject Supercritical fluid processing en_US
dc.subject Nafion en_US
dc.subject.lcsh Fuel cells. en_US
dc.subject.lcsh Ionomer. en_US
dc.subject.lcsh Ion-pemeable membranes. en_US
dc.subject.lcsh Supercritical fluids extractions. en_US
dc.subject.lcsh Thermogravimetry. en_US
dc.subject.lcsh Membranes (Technology) en_US
dc.subject.lcsh Proton exchange membrane fuel cells. en_US
dc.title Supercritical fluid processing of perfluorinated and sulfonated membranes en_US
dc.type Thesis en_US
dspace.entity.type Publication Chemical Engineering en_US M.S. en_US
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