College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, P.R. China.
i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China.
ChemSusChem. 2018 Mar 9;11(5):916-923. doi: 10.1002/cssc.201702243. Epub 2018 Feb 14.
Carbon molecular sieve (CMS)-based membranes have attracted great attention because of their outstanding gas-separation performance. The polymer precursor is a key point for the preparation of high-performance CMS membranes. In this work, a microporous polyimide precursor containing a Tröger's base unit was used for the first time to prepare CMS membranes. By optimizing the pyrolysis procedure and the soaking temperature, three TB-CMS membranes were obtained. Gas-permeation tests revealed that the comprehensive gas-separation performance of the TB-CMS membranes was greatly enhanced relative to that of most state-of-the-art CMS membranes derived from polyimides reported so far.
基于碳分子筛 (CMS) 的膜因其出色的气体分离性能而受到广泛关注。聚合物前体是制备高性能 CMS 膜的关键。在这项工作中，首次使用含有 Tröger's 碱单元的微孔聚酰亚胺前体制备 CMS 膜。通过优化热解程序和浸泡温度，得到了三种 TB-CMS 膜。气体渗透测试表明，与迄今为止报道的大多数源自聚酰亚胺的最先进的 CMS 膜相比，TB-CMS 膜的综合气体分离性能得到了极大提高。
