基于4-甲基邻苯二酚的高性能聚酯纳滤膜制备及其性能研究
作者： 王丁1， 杨保俊1， 王百年1， 周阿洋2,3*
单位： 1. 合肥工业大学 化学与化工学院， 合肥  230001； 2. 滁州学院  材料与化学工程学院， 滁州 239000；
3. 安徽省高性能水处理陶瓷分离膜工程研究中心， 滁州 239000
关键词： 多酚； 界面聚合； 纳滤膜； 耐溶剂； 4-甲基邻苯二酚
DOI号： 10.16159/j.cnki.issn1007-8924.2026.03.009
分类号： TQ316.4+3
出版年,卷(期):页码： 2026, 46(3):89-99

摘要：

聚酯复合纳滤膜因能在有机溶剂中保持稳定性能，成为研究热点。这类膜的制备通常采用界面聚合法，其中多酚类物质作为关键反应单体，对膜的结构和性能起着决定性作用。本研究以邻苯二酚（CA）、4-甲基邻苯二酚（MECA）和4-叔丁基邻苯二酚（TECA）三种多酚类化合物为水相反应单体，以均苯三甲酰氯（TMC）为油相反应单体，采用界面聚合法在聚醚砜（PES）超滤基膜表面制备聚酯复合纳滤膜。重点考察不同结构多酚单体对膜分离性能[以考马斯亮蓝R-250（BB，854 Da）水溶液为测试液]和耐溶剂性能（在多种有机溶剂中测试）的影响。结果表明，以4-甲基邻苯二酚（MECA）为水相单体制备的膜表现出最优的分离性能与最低的溶胀度；以该体系制备的MECA-TMC膜在四氢呋喃中具有良好的耐溶剂性能，在36 h试验中对考马斯亮蓝的截留率达到98%，渗透率达到34 L/( m2·h·MPa)。

Polyester composite nanofiltration membranes have received widespread attention due to their stability in organic solvents. The interface polymerization method is commonly used to prepare polyester composite films, and the role of polyphenols as monomers in this polymerization reaction is crucial. This article investigated three types of polyphenols: catechol (CA), 4-methylcatechol (MECA), and 4-tert-butyl-catechol（TECA）. They are used as aqueous monomers to react with trimethoyl chloride (TMC) to prepare solvent resistant composite polyester membranes. The prepared membrane was first used to separate the aqueous solution of Brilliant Blue R-250 (BB, 854 Da), and its swelling degree was tested in different organic solvents. Among these threemembranes, MECA-TMC exhibited good separation performance and low swelling degree, therefore, for subsequent research, the prepared membrane NF-MECA had good solvent resistance in tetrahydrofuran, with a retention rate of 98% for BB in a 36 hour experiment and a permeance of 34 L/( m2·h·MPa). 

基金项目：

安徽省科技攻坚计划重点项目（202423i08050001）

作者简介：
第一作者简介： 王丁（2002-），男，安徽蚌埠人，硕士研究生，主要研究方向为膜分离.*通讯作者，E-mail：zhouayang@foxmail.com

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