摘要
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＝４．４９ｂａｒｅｒ，αＣＯ２／Ｎ２＝４１．９６，ＰＯ２＝０．７５ｂａｒｅｒ，αＯ２／Ｎ２＝７．１０；ＣＯＰＰＥＫＡＣ（１∶１）：ＰＣＯ２＝９．１９ｂａｒｅｒ，αＣＯ２／Ｎ２＝３４．１６，ＰＯ２＝１．５０ｂａｒｒｅｒ，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。
From the view of molecule designing, a series of multisubstituted phenylogic poly(arylene ether ketone)s, which are of big free volume, and of high glass transition temperature and excellent comprehensive performance, were synthesized. Permeabilities for gas of membranes made of this kind of copoly(arylene ether ketone)s were studied. Some results as follow: COPPEKAD(1∶3): P CO 2 =4.49 barrer, α CO 2/N 2 =41.96, P O 2 =0.75 barrer, α O 2/N 2 =7.10;COPPEKAC(1∶1): P CO 2 =9.19 barrer, α CO 2/N 2 =34.16, P O 2 =1.50 barrer, α O 2/N 2 =5.57. The appearant permeassive activation energy of these polymers are small. The dependence of permeabilities of these polymers on temperature is of little significance. The results show that these copolymer thermalstable are membrane materials which have high permeability and selectivity for gas.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第4期106-108,共3页
Polymer Materials Science & Engineering
基金
国家自然科学基金
