文献类型：期刊文献

英文题名：Construction of membrane formation system with low critical solution temperature for preparing hydrophilic polysulfone membrane via modified reverse thermally induced phase separation process

作者：Yang, Jing[1];Wei, Yong-Ming[2];Zhang, Jun-Jun[3];Wang, Fang[1];Liu, Min[1,4];Zhou, Quan[1,4]

机构：[1]East China Univ Sci & Technol ECUST, Sch Mat Sci & Engn, Shanghai, Peoples R China;[2]Chem Engn Res Ctr, State Key Lab Chem Engn, Membrane Sci & Engn R&D Lab, ECUST, Shanghai, Peoples R China;[3]Fuchem Shanghai Co Ltd, Shanghai, Peoples R China;[4]East China Univ Sci & Technol ECUST, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2023

卷号：63

期号：3

起止页码：755

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20230113334749);WOS:【SCI-EXPANDED(收录号:WOS:000905114700001)】；

基金：ACKNOWLEDGMENTS The authors are thankful for the financial support of the National Natural Science Foundation of China (21978082).

语种：英文

外文关键词：construction; low critical solution temperature; membrane; modified reverse thermally induced phase separation; polysulfone

摘要：This paper presents a novel method to construct a membrane formation system featuring a low critical solution temperature (LCST) by incorporating hydroxy terminated hyperbranched polyester (HBPE) into polysulfone (PSF) casting solution. PSF membranes were developed by modified reverse thermally induced phase separation (m-RTIPS) process while the introduction of HBPE improved the hydrophilicity of the membrane. The critical properties of the flat-sheet PSF membranes were discussed in detail. The cloud point decreased as the HBPE concentration was increased. When membranes were prepared via m-RTIPS, the region of bicontinuous finger-like pores in the sublayer gradually broadened. The membranes showed better permeation properties, larger pore size, and better mechanical properties than those of the membranes prepared via non-solvent-induced phase separation (NIPS) process. Furthermore, no matter the enhanced hydrophilicity of membrane or m-RTIPS membrane-forming mechanism was beneficial to the anti-fouling properties. In general, the membrane MPSF-8-b had relatively high flux, good hydrophilicity and excellent mechanical properties at 0.8 wt.% HBPE content, and the pure water flux recovery of the membrane was increased to 55.2%.