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丙烯酸酯类两亲性共聚物超滤膜的制备及性能

作者：蒋亚妮¹，赵自豪¹，苏茜薇¹，朱礼恒¹，田华¹，薛云云²，杜斌¹，²，钱佳成²，王建宇²，凌君¹，朱宝库¹，²

单位： 1. 浙江大学高分子科学与工程学系，膜与水处理技术教育部工程研究中心 2. 浙江大学绍兴研究院大健康材料中心

关键词：聚丙烯酸酯；两亲性共聚物；羧基；超滤膜；抗污染

DOI号： 10.16159/j.cnki.issn1007-8924.2024.05.004

分类号： TQ051.893

出版年,卷(期):页码： 2024,44(5):32-39

摘要：

为探索环保型高性能水处理超滤膜材料，设计、合成了仅含碳、氢、氧元素的丙烯酸酯类两亲性共聚物-聚（甲基丙烯酸甲酯-co-丙烯酸丁酯-co-甲基丙烯酸）[P(MMA-co-BA-co-MAA), 简写为PMBM\]，研究了PMBM超滤膜的制备、结构和性能.研究发现，通过非溶剂诱导相转化法（NIPS）制备的PMBM超滤膜具有良好的亲水性和抗污染性，不同羧基含量的PMBM膜在不同 pH下的性能差别较大.其中MAA质量分数为11% 的PMBM11膜在中性条件下纯水通量为1 310 L/(m2·h·MPa)，对BSA的截留率为98%，BSA污染后的通量恢复率（FRR）达到79%.

In order to develop an environmentally friendly and highperformance water treatment ultrafiltration membrane materials, the amphiphilic copolymers, poly (methyl methacrylate-co-butyl acrylate-co-methacrylic acid) (P(MMA-co-BA-co-MAA), PMBM), only containing only C, H and O elements were designed and synthesized in this research. The ultrafiltration membranes of PMBMs were prepared via typical non-solvent-induced phase separation (NIPS) process. It is found that suspension polymerization is an effective method to synthesize PMBMs, and the PMBMs can be prepared into ultrafiltration membrane with good pore structure. The carboxyl group in PMBMs can endow the membranes with good hydrophilicity and antifouling property. The performance of PMBM membrane with different carboxyl group content can vary obviously at different pH condition. The membrane of PMBM11 containing 11% (mass fraction) MAA performed a pure water flux of 1 310 L/(m2·h·MPa), a BSA retention rate of 98%, and a flux recovery rate (FRR) of 79% after BSA contamination.

基金项目：

浙江省自然科学基金项目（LD22E030006）; 浙江大学基本科研业务费专项（226-2023-00057, 26-2023-00074, 2021FZZX003-02-09）

作者简介：

蒋亚妮（1998-），女，浙江台州人，硕士生，主要从事聚合物微孔分离膜材料研究.*通讯作者，E-mail：zhubk@zju.edu.cn

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