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- Title
Synthesis and gas transport properties of novel poly(aryl ether ketone)s with branched structure.
- Authors
Gao, Cong; Li, Xiujie; Jiang, Zhenhua; Wei, Wei; Wang, Guibin; Zhang, Shuling
- Abstract
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. © 2013 Society of Chemical Industry
- Subjects
POLYMER research; MONOMERS; POLYARYLETHERS; POLYMERIC membranes; PERMEABILITY; ADSORPTION (Chemistry); GAS separation membranes
- Publication
Polymer International, 2014, Vol 63, Issue 4, p718
- ISSN
0959-8103
- Publication type
Article
- DOI
10.1002/pi.4577