文献类型：期刊文献

英文题名：Tailoring the polyester/polyamide backbone stiffness for the fabrication of high performance nanofiltration membrane

作者：Tang, Yong-Jian[1];Xu, Zhen-Liang[1];Xue, Shuang-Mei[1];Wei, Yong-Ming[1];Yang, Hu[1]

机构：[1]East China Univ Sci & Technol, Chem Engn Res Ctr, Membrane Sci & Engn R&D Lab, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：541

起止页码：483

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20173003968967);WOS:【SCI-EXPANDED(收录号:WOS:000408371400049)】；

基金：We acknowledge the financial support received from 2013 Special Project of the Development and Industrialization of New Materials of National Development and Reform Commission in China (GX1301), the National Science and Technology Support Project of China (2014BAB07B01 and 2015BAB09B01) 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：Polyamide; Nanofiltration preparation; Backbone stiffness; Interfacial polymerization; Enhanced microporosity

摘要：According to the Freeman theory, increasing the backbone stiffness to some extent is an effective way to obtain the remarkable membrane with both high permeability and selectivity. In this work, a high performance nanofiltration (NF) membrane was prepared via tailoring the polyester/polyamide backbone stiffness. The flexible monomer-piperazine (PIP) and the rigid monomer-bisphenol F (BPF) were selected as the aqueous phase monomers, and they were interfacial reacted with trimesoyl chloride (TMC) on the polyethersulfone (PES) UF membrane to generate the polyester/polyamide layer. By mixing PIP with BPF, both of the polyester/polyamide backbone stiffness and microporosity degree enhanced. As a result, the PIP/BPF NF membrane possessed a 2.6-fold pure water flux (PWF) of the PIP NF membrane (the salt rejection remained at the same level), and 4.8-fold PWF of the BPF NF membrane. Our results revealed a novel and facile way to improve the NF membrane performance.