文献类型：期刊文献

英文题名：Interfacial Polymerization with Electrosprayed Microdroplets: Toward Controllable and Ultrathin Polyamide Membranes

作者：Ma, Xiao-Hua[1,2];Yang, Zhe[2];Yao, Zhi-Kan[2];Guo, Hao[2];Xu, Zhen-Liang[1];Tang, Chuyang Y.[2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Univ Hong Kong, Dept Civil Engn, HW619B, Pokfulam, Hong Kong, Peoples R China

年份：2018

卷号：5

期号：2

起止页码：117

外文期刊名：ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS

收录：;EI(收录号：20180704806591);WOS:【SCI-EXPANDED(收录号:WOS:000425474600012)】；

基金：The authors gratefully acknowledge the research funding provided by the Hong Kong Scholars Program (XJ2015015), the General Research Fund (Project 17207514) of the Research Grants Council of Hong Kong, the Strategic Research Theme (Clean Energy) at the University of Hong Kong, the National Natural Science Foundation of China (21406060), the Fundamental Research Funds for the Central Universities (WA1514305), and the China Postdoctoral Science Foundation (2016M601527).

语种：英文

外文关键词：Chlorine compounds - Desalination - Growth rate - Polymerization - Polyamides

摘要：Commercial polyamide membranes for seawater desalination and water purification have low water permeability because of their relatively thick rejection layers. We report a novel interfacial polymerization method for synthesizing ultrathin polyamide layers with a precisely controllable thickness. Monomer solutions of m-phenylenediamine and trimesoyl chloride were electrosprayed into fine microdroplets. The polymerization reaction between microdroplets of different monomers leads to a fine and controllable amount of deposition. We fabricated smooth polyamide layers from 4 nm to several tens of nanometers in thickness, with a growth rate of approximately 1 nm/min. Our study provides a new dimension for the rational design and preparation of ultrathin polyamide membranes with tunable separation properties.