Monitoring the Interfacial Polymerization and Membrane Fouling of Selective Layer with Boronate Ester Linkages via Aggregation-induced Emission

IF 4 2区化学 Q2 POLYMER SCIENCE

Chinese Journal of Polymer Science Pub Date : 2025-07-01 DOI:10.1007/s10118-025-3352-4

Meng-Yao Zhao, Xin-Zhao Luo, Die Li, Ya-Qi Dong, Qian Wang, Xiao-Ling Xu, Qiang Zhang

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引用次数: 0

Abstract

It is important to understand the evolution of the matter on the polymer membrane surface. The in situ and real-time monitoring of the membrane surface will not only favor the investigation of selective layer formation but can also track the fouling process during operation. Herein, an aggregation-induced emission (AIE)-active polymer membrane was prepared by the interfacial polymerization of a cyclodextrin-based glycocluster (CD@Glucose) and a tetraphenylethylene derivative modified with boronic acid groups (TPEDB) on the surface of a polyacrylonitrile (PAN) ultrafiltration membrane. This interfacial polymerization method can be stacked layer-by-layer to regulate the hydrophilicity and pore structure of the membrane. With the increase in the number of polymer layers, the separation and antifouling properties of the membrane gradually improved. Owing to the AIE property of the crosslinking agent TPEDB, the occurrence of interfacial polymerization and the degree of fouling during membrane operation can be monitored by the fluorescence distribution and intensity. With the aggravation of membrane fouling, the fluorescence decreased gradually, but recovered after cleaning. Therefore, this AIE effect can be used for real-time monitoring of interfacial polymerization as well as membrane fouling.

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利用聚集诱导发射技术监测具有硼酸酯键选择层的界面聚合和膜污染

了解聚合物膜表面物质的演化过程具有重要意义。对膜表面的现场实时监测不仅有利于研究选择性层的形成，而且可以跟踪运行过程中的污染过程。在聚丙烯腈（PAN）超滤膜表面，通过环糊精基糖团（CD@Glucose）和硼酸基修饰的四苯基乙烯衍生物（TPEDB）的界面聚合制备了聚集诱导发射（AIE）活性聚合物膜。这种界面聚合方法可以通过层层叠加来调节膜的亲水性和孔隙结构。随着聚合物层数的增加，膜的分离性能和防污性能逐渐提高。由于交联剂TPEDB的AIE性质，可以通过荧光分布和强度监测膜操作过程中界面聚合的发生和污染程度。随着膜污染的加重，荧光逐渐下降，但清洗后又恢复。因此，这种AIE效应可以用于界面聚合和膜污染的实时监测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chinese Journal of Polymer Science 化学-高分子科学

CiteScore

7.10

自引率

11.60%

发文量

218

审稿时长

6.0 months

期刊介绍： Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.