蒋超¹,马文中^1,2,李太雨¹,徐荣¹,张琪¹,钟璟¹

• 1:常州大学 石油化工学院，江苏省绿色催化材料与技术重点实验室，江苏常州 213164
• 2:常州大学 材料科学与工程学院，江苏省环境友好高分子材料重点实验室，江苏常州 213164

摘要(Abstract)：

针对渗透汽化分离二甲基甲酰胺（DMF）和二甲基乙酰胺（DMAc）酰胺类溶剂过程中渗透性和选择性之间此升彼降的矛盾关系（trade-off效应），提出界面聚合薄层PI复合膜的方法。通过均苯四甲酸酐和五氯化磷制备有机相单体均苯四甲酰氯，分别以间苯二胺（MPDA）、丙二胺（DAPE）及己二胺（HMD）为水相单体，采用界面聚合法制备3种耐溶剂型聚酰亚胺（PI）复合膜，并对3种PI复合膜进行表征和渗透汽化分离性能测试。结果表明：3种PI复合膜都具有良好的亲水性、热稳定性；在6种常见的有机溶剂中，保持良好的稳定性；在30~60℃条件下，HMD-PI膜对质量分数90% DMF/H₂O体系和质量分数90% DMAc/H₂O体系的分离因子最高可达12.7和36.8，渗透通量可达1 014和542 g·m^-2·h^-1，具有较好的分离效果。

关键词(KeyWords)： 界面聚合;聚酰亚胺膜;渗透汽化;耐溶剂型

Abstract:

Keywords:

基金项目(Foundation): 中国石油化工股份有限公司科技项目（216078）；江苏省先进催化与绿色制造协同创新中心（常州大学）；江苏省高等学校自然科学研究项目资助（18KJA430005，18KJA530001）；江苏省研究生培养创新工程项目（KYCX18_2614）。

作者(Author): 蒋超¹,马文中^1,2,李太雨¹,徐荣¹,张琪¹,钟璟¹

DOI: 10.3969/j.issn.1003-9015.2019.03.028

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