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多取代联苯型聚芳醚酮膜的透气性研究

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Indexed by:期刊论文

Date of Publication:1999-07-28

Journal:高分子材料科学与工程

Included Journals:PKU、CSCD

Volume:15

Issue:4

Page Number:106-108

ISSN No.:1000-7555

Key Words:聚芳醚酮共聚物;气体分离;膜性能

Abstract:从分子设计出发,合成了自由体积大、玻璃化温度高和优异综合性能的多取代联苯型聚芳醚酮.对其均质膜的气体渗透性进行了测试,并考察了共聚物组成对膜性能的影响.其中两种共聚物的渗透性为COPPEKAD(1:3):PCO2=4.49 barrer,αCO2/N2=41.96,PO2=0.75 barrer,αO2/N2=7.10;COPPEKAC(1:1):PCO2=9.19 barrer,αCO2/N2=34.16,PO2=1.50 barrer,αO2/N2=5.57.此类聚合物的渗透活化能较小,对温度的依赖性小,表明这种聚合物是高渗透性和高选择性的耐高温气体膜分离材料.

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