Synthesis and characterization functionalized poly(ether ether ketone)s with carboxylic groups

被引：0

作者：

王冬 ^{[1
,2
]}

高鸿 ^{[2
]}

姜振华 ^{[2
]}

机构：

[1] School of Materials Science and Engineering,University of Science and Technology Beijing

[2] Alan GMacDiarmid Institute,Jilin University

来源：

Journal of Beijing Institute of Technology | 2012年 / 21卷 / 01期

关键词：

poly(ether ether ketone)s; carboxylic groups; high Tg;

D O I：

10.15918/j.jbit1004-0579.2012.01.007

中图分类号：

O631.5 [聚合反应、缩聚反应];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel type of aromatic poly(ether ether ketone)s with carboxyl groups were prepared by polycondensation of 4,4-bis(4-hydroxyphenyl)pentanoic acid with difluoro-monomers.Their molecular structures were determined by 1H-NMR and IR,respectively.Their molecular weights were measured by gel permeation chromatography(GPC),which showed that all the polymers had high molecule weights(>42 000).Due to the long side chains of polymers,all the polymers had good solubility(soluble in NMP,DMAc,THF,etc.).The differential scanning calorimeter(DSC) detected their excellent glass transition temperatures(Tg) up to 195 ℃.The Tg increased with the content of carboxylic units in the polymer chains,because the interactions of H bonds increased with increasing content of carboxylic.The polymers could form transparent and flexible films,which make them a candidate for membrane materials.

引用

页码：118 / 121

页数：4

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