应用化学 ›› 1996, Vol. 0 ›› Issue (5): 116-118.

• 研究简报 • 上一篇    

几种Cardo聚芳醚砜膜的气体透过行为

王忠刚, 陈天禄, 徐纪平   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1995-12-25 修回日期:1996-03-18 出版日期:1996-10-10 发布日期:1996-10-10

Gas Permeation Behavior of Several Novel Cardo Polyarylethersulfone Membranes

Wang Zhonggang, Chen Tianlu, Xu Jiping   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1995-12-25 Revised:1996-03-18 Published:1996-10-10 Online:1996-10-10

摘要: 近年来的研究结果表明:同时增加聚合物的自由体积和限制分子链的链段活动性可以同时改善聚合物的气体透过系数和选择性系数.本文合成了几种酚酞型聚芳醚矾PES-C膜,并研究了对CO2, CH4的气体透过行为.

关键词: Cardo聚芳醚砜, 膜, 气体分离

Abstract: The gas permeation behavior of several new Cardo polyarylethersulfones containing different alkyl substituents on the backbone benzene rings was studied. The variation of permeation and diffusion coefficients with temperature followed Arrhenius equation within the temperature range of 30℃~100℃.The permeation coefficient increased with the rise of temperature, while the selection factor decreased correspondingly. The introduction of isopropyl groups resulted in a significant increase in gas permeation coefficient. In particular,the permeation coefficient and selection factor were found to grow simultaneously when the four hydrogen atoms per repeat unit were replaced with methyl groups.

Key words: polyarylethersulfone, membrane, gas separation