%0 Journal Article
%T Poly(ether ether ketone) grafted with sulfoalkylamine as proton exchange membrane
%A Chengji Zhao
%A Zhi Shao
%J High Performance Polymers
%@ 1361-6412
%D 2019
%R 10.1177/0954008318775788
%X A series of side-chain-type sulfonated poly(arylene ether ketone)s with high ion exchange capacity (IEC) values were prepared by polycondensation reaction of 4,4¡ä-difluorobenzophenone with 2,2¡ä-bis(3-amino-4-hydroxyphenyl) and bisphenol A, followed by post-grafting reaction using 1,4-butanesultone. For these obtained membranes, sulfoalkylamine functionalized poly(ether ether ketone) (SAm-PEEK)-0.8 with the highest IEC of 3.42 mequiv. g£¿1 displayed the highest proton conductivity of 0.11 S cm£¿1 at 25¡ãC and 0.167 S cm£¿1 at 60¡ãC, respectively. The morphology of these membranes was investigated by transmission electron microscope analysis. The result showed that these membranes exhibited well-connected hydrophilic channels due to their high IEC values and densely populated flexible acid side chains. Owing to their low methanol permeability and high selectivity, SAm-PEEK-x membranes are promising candidates for direct methanol fuel cell applications
%K Sulfonated poly(arylene ether ketone)
%K sulfoalkylamine
%K proton exchange membranes
%K fuel cells
%U https://journals.sagepub.com/doi/full/10.1177/0954008318775788