期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 185, 期 -, 页码 215-226出版社
ELSEVIER
DOI: 10.1016/j.seppur.2017.05.037
关键词
Pervaporation; Polyimide membrane; 13,5-Benzenetricarbohydrazide; Network cross-linking; Isopropanol dehydration
资金
- Free Exploring Fundamental Research Project from Shenzhen Research Council, China [JCYJ20160408173516757]
- Open Research Fund Program of Collaborative Innovation Center of Membrane Separation and Water Treatment of Zhejiang Province
- Opening Project of Key Laboratory of Biomedical Polymers of Ministry of Education at Wuhan University [20140401]
Amine cross-linking is one of the popular modifications of polyimide membranes in order to improve their operation stability and separation performance. In this work, a novel kind of cross-linker tricarbohydrazide - 1,3,5-benzenetricarboxylic acid trihydrazide (BTCH), is synthesized and incorporated into polyimide membranes for isopropanol dehydration via pervaporation. The chemical structure of BTCH is examined by NMR and FTIR to confirm the successful synthesis. The effects of BTCH content and membrane-forming temperature on the membrane physicochemical properties and separation performance are studied and characterized by various techniques. And the possible reaction mechanism during the chemical cross-linking is proposed and analyzed. This work is believed to shed useful insights on the chemical modification of polyimide membranes for pervaporation and other membrane-based separation applications. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据