文献类型：期刊文献

英文题名：PSF hollow fiber membrane fabricated from PSF-HBPE-PEG400-DMAc dope solutions via reverse thermally induced phase separation (RTIPS) process

作者：Zhao, Long-Bao[1];Liu, Min[2];Xu, Zhen-Liang[1,2];Wei, Yong-Ming[1];Xu, Min-Xian[1]

机构：[1]E China Univ Sci & Technol, Chem Engn Res Ctr, Membrane Sci & Engn R&D Lab, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]ECUST, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2015

卷号：137

起止页码：131

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20152701003662);WOS:【SCI-EXPANDED(收录号:WOS:000361772400012)】；

基金：The authors are thankful for the financial support received from the National Natural Science Foundation of China (21306044), the Key Technology R&D Program of Shanghai Committee of Science and Technology in China (13521102000), special project of the Development and Industrialization of New Materials of National Development and Reform Commission in China (20132548), the National Science and Technology Support Project of China (2014BAB07B01), Chinese Postdoctoral Science Foundation (2015M571508) and the Key Technology R&D Program of Jiangsu Committee of Science and Technology in China (BE2013031).

语种：英文

外文关键词：Polysulfone; Hyperbranched polyester; Hollow fiber membranes; low critical solution temperature; Reverse thermally induced phase separation

摘要：Hyperbranched polyesters (HBPEs) based on 2,2-bis(methylol)propionic acid (bis-MPA) was used as an additive to prepare polysulfone (PSf) hollow fiber membranes while the PSf-HBPE-PEG400-DMAc dope solutions were low critical solution temperature (LCST) membrane-forming systems. When the temperature of the coagulation bath was lower than the cloud point, the membrane formation process was the NIPS process, and the finger-like structure could be found in the membranes. The hydrophilicity, porosity, pure water flux, mean effective pore size and breaking strength of these prepared membranes increased with increasing the HBPE content. On the other hand, when the temperature of the coagulation bath reached the cloud point, the membrane formation process was changed to the reverse thermally induced phase separation (RTIPS) process. In these membranes, the finger-like structure was replaced by the sponge-like structure, and the porosity, pure water flux, mean effective pore size and breaking strength of these prepared membranes increased with increasing the temperature of the coagulation bath. (C) 2015 Elsevier Ltd. All rights reserved.