Paper Title:
Synthesis and Characterization of Poly(ether ketone) Containing Side Sulfonic Acid Group for Proton Exchange Membrane Fuel Cell
  Abstract

Poly(ether ketone)s (PEK) containing 25-75 mol % valeric acid were prepared with bisphenol A, 4,4-dichlorobenzophenone and 4,4-Bis(4-hydroxylphenyl)valeric acid using potassium carbonate in DMAc (dimethyl acetami de) at 165 °C. Copolymers containing carboxylacid group were reduced to hydroxy group by BH3 solution 1M in THF and NaBH4 co-catalyst. Sulfonated poly(ether ketone)s (S-PEK) were obtained by reaction of 1,3-propanesultone and the reduced copolymer (PEK-OH) with sodium methoxide. A series of copolymers were studied by 1H-NMR spectroscopy, differential scanning calorimeter (DSC), and thermo gravimetric analysis (TGA). Sorption experiments were conducted to observe the interaction of sulfonated polymers with water and methanol. The S-PEK membranes exhibited proton conductivities from 1.31  10-3 to 3.52  10-3 S/cm, water swell from 12.70 to 35.50 %, IEC from 0.45 to 0.75 meq/g and methanol diffusion coefficients from 3.65  10-7 to 5.10  10-7 cm2/S at 25 °C.

  Info
Periodical
Edited by
Hyungsun Kim, JianFeng Yang, Tohru Sekino, Masakazu Anpo and Soo Wohn Lee
Pages
41-44
DOI
10.4028/www.scientific.net/MSF.658.41
Citation
D. W. Seo, Y. D. Lim, S. H. Lee, T. W. Hong, S. C. Ur, I. H. Kim, W. G. Kim, "Synthesis and Characterization of Poly(ether ketone) Containing Side Sulfonic Acid Group for Proton Exchange Membrane Fuel Cell ", Materials Science Forum, Vol. 658, pp. 41-44, 2010
Online since
July 2010
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Wan Seo, Young Don Lim, M. S. Islam Mollah, Soon Ho Lee, Sang Ho Moon, Sang Young Pyun, Whan Gi Kim
Abstract:Poly(ether sulfone)s (PES) containing 25-75 mol % valeric acid were prepared with bisphenol A, bis(4-chlorophenyl)sulfone and...
73
Authors: Xin De Tang, Xiao Chano Liang, Nian Feng Han
Abstract:Novel Y-shaped amphiphilic block copolymers of poly(ethylene glycol) and poly(N-isopropylacrylamide), PEG-b-(PNIPAM)2, were successfully...
1623
Authors: Xin Wang, Yuan Yuan Dou, Mei Shan Pei, Xin De Tang
Abstract:Biocompatible and biodegradable synthetic materials have attracted considerable attention during the past two decades. In this work, a series...
1057
Authors: Yong Zhou, Bing Liu
Chapter 2: Smart Materials for Biomedical Engineering Application
Abstract:Novel chiral amphiphilic diblock copolymers bearing L-phenylalanine was synthesized using a “click” reaction of N3-L-phenylalanine and...
334
Authors: Shan Shan Chen, Jian Mei Liu, Ying Ling, Shi Chao Fang, Hui Yang, Jia Ni Ling, Meng Xu, Zhao Xia Hu, Shou Wen Chen
Chapter 1: Material Science
Abstract:A series of novel multiblock copolymers containing rigid hydrophilic/soft hydrophobic blocks were synthesized and evaluated for use as proton...
308