Synthesis and characterization of thermosetting copolymers as PEM's

M. R. Mohamed Aflal, Yossef A. Elabd, Giuseppe R. Palmese

Research output: Contribution to conferencePaperpeer-review

Abstract

A major focus in the area of proton exchange membrane (PEM) development for fuel cells such as in the direct methanol fuel cell, is in the optimization of parameters such as membrane resistivity, nanostructure, thermal behavior, and methanol and water permeabilities. Our recent work concerning a novel material system of diglycidyl ether of bisphenol A (DGEBA) vinyl ester (VE) and 2-acrylamido 2-methyl propane sulfonic acid (AMPS) demonstrates a simple technique of forming network structures of hydrophobic and hydrophilic materials via thermally initiated free radical polymerization in the presence of dimethyl formamide (DMF) as a common solvent. In addition, nanoporosity is induced in these systems using supercritical fluid extraction. Characterization by water uptake measurements and AC impedance spectroscopy is carried out and observations of ionic conductivity as high as 0.0346 S cm-1 are reported. The effect of thermal treatment on the properties of the polymer membrane is also discussed with results indicating a correlation between induced porosity and AMPS content with water uptake and conductivity.

Original languageEnglish (US)
Pages4801
Number of pages1
StatePublished - 2005
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
Country/TerritoryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

All Science Journal Classification (ASJC) codes

  • General Engineering

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