Synthesis and gas transport properties of novel poly(aryl ether ketone)s with branched structure

被引：4
|
作者：
Gao, Cong [1 ]
Li, Xiujie [2 ]
Jiang, Zhenhua [1 ]
Wei, Wei [1 ]
Wang, Guibin [1 ]
Zhang, Shuling [1 ]
机构：
[1] Jilin Univ, Coll Chem, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China
[2] Aerosp Sci & Technol Corp, Res Inst 5, Factory 529, Beijing 100190, Peoples R China
来源：
POLYMER INTERNATIONAL | 2014年 / 63卷 / 04期
基金：
中国国家自然科学基金;
关键词：
branched structure; synergistic effect; poly(aryl ether ketone); gas transport properties; SEPARATION; POLYIMIDES;
D O I：
10.1002/pi.4577
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(aryl ether ketone)s (PAEKs) based on 2-(3 '-trifluoromethylphenyl) hydroquinone and 4,4 '-difluorobenzophenone were synthesized and characterized in the presence or absence of 2,4 ',6-trifluorobenzophenone (BB '(2) monomer). The influence of the incorporation of a branched structure (BB '(2) monomer) on the gas transport properties of PAEKs was investigated. The results showed that PAEKs with a branched structure possess a higher permeability and selectivity than PAEKs without a branched structure. Moreover, improvements in the permeability and selectivity were enhanced with increasing content of BB '(2) monomer. This synergistic effect on permeability and selectivity was mainly due to the higher fractional free volume and the unique size and distribution of free volume holes arising from the incorporation of the branched structure. (c) 2013 Society of Chemical Industry
引用
收藏
页码：718 / 721
页数：4
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