Radiation induced graft polymerization of multi-walled carbon nanotubes for superhydrophobic composite membrane preparation

作     者：Bowu Zhang Siyuan Xie Rongmao Wei Hongjuan Ma Ming Yu Linfan Li Jingye Li 

作者机构：CAS Centre for Excellence on TMSR Energy System Shanghai Institute of Applied Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Guangxi Foreign Capital Poverty Reduction Project Management Center 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2016年第59卷第3期

页      面：303-309页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China (11305248  11305241  11175234) 

主　　题：multi-walled carbon nanotubes radiation induced graft polymerization surface modification superhydrophobic membrane 

摘      要：Highly soluble multi-walled carbon nanotubes （MWNTs） were prepared by radiation-induced free radical graft polymerization of vinyl acetate （VAc） onto pristine MWNT surfaces. High resolution transmission electron microscopy （HR-TEM）, Fourier transform infrared （FT1R） spectroscopy, and micro-Raman spectroscopy were used to confirm that poly（vinyl acetate） （PVAc） had been successfully grafted onto the surface of the MWNTs. The effects of experimental parameters on the degree of graft- ing （DG） of PVAc were also investigated, including adsorbed dose, dose rate, initial monomer concentration, and solvents. The grafted MWNTs （MWNTs-g-PVAc） exhibited good solubility in common organic solvents at high mass fraction. In addition, a superhydrophobic composite membrane could be readily fabricated by vacuum filtration of MWNTs-g-PVAc onto a support- ing membrane, as was confirmed by water contact angle testing and visualization by scanning electron microscopy.