PREPARATION AND CHARACTERIZATION OF SOLUBLE SULFONATED POLYBENZIMIDAZOLE FOR PROTON EXCHANGE MEMBRANE MATERIALS

PREPARATION AND CHARACTERIZATION OF SOLUBLE SULFONATED POLYBENZIMIDAZOLE FOR PROTON EXCHANGE MEMBRANE MATERIALS

A series of sulfonated polybenzimidazoles(sPBI-SF)were prepared from 2,2-bis(4-carboxyphenyl)hexafluoro- propane(BIS-B-AF),3,3′-disulfonyl-4,4′-dicarboxyldiphenylsulfone(DSDCDPS)and 3,3′-diaminobenzidine(DAB)at various stoichiometric ratio by solution copolycondensation in poly(phosphoric acid).The...

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Veröffentlicht in:Chinese journal of polymer science 2008-03, Vol.26 (2), p.121-129
1. Verfasser: 黄卫 颜德岳
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container_title Chinese journal of polymer science
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creator 黄卫 颜德岳
description A series of sulfonated polybenzimidazoles(sPBI-SF)were prepared from 2,2-bis(4-carboxyphenyl)hexafluoro- propane(BIS-B-AF),3,3′-disulfonyl-4,4′-dicarboxyldiphenylsulfone(DSDCDPS)and 3,3′-diaminobenzidine(DAB)at various stoichiometric ratio by solution copolycondensation in poly(phosphoric acid).The chemical structure of the resulting sPBI-SF was confirmed by FTIR and ~1H-NMR.The sPBI-SFs with high molecular-weights(M_n=39400-65500)were soluble in DMF,DMSO or DMAc.Therefore,they could form some transparen...
doi_str_mv 10.1142/S0256767908002753
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title PREPARATION AND CHARACTERIZATION OF SOLUBLE SULFONATED POLYBENZIMIDAZOLE FOR PROTON EXCHANGE MEMBRANE MATERIALS
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