文献类型：期刊文献

中文题名：聚甲基丙烯酸甲酯接枝多壁碳纳米管的制备及表征

英文题名：Preparation and Characterization of PMMA-Grafted Multi-walled Carbon Nanotubes

作者：范羽[1];李慧[1];崔佳佳[1];刘涛[2];赵玲[2];韩哲文[1]

机构：[1]华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237;[2]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2009

期号：3

起止页码：218

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金项目(20504009)

语种：中文

中文关键词：多壁碳纳米管;原位聚合;接枝;聚甲基丙烯酸甲酯;超临界CO2

外文关键词：multi-walled carbon nanotube; in-situ polymerization; graft; polymethyl methacrylate supercritical CO2

摘要：采用原位聚合的方法,分别在本体及超临界CO2介质中将聚甲基丙烯酸甲酯(PMMA)接枝到多壁碳纳米管(MWNTs)表面,通过GPC、拉曼光谱、TGA等手段对样品进行表征。聚合产物的GPC结果表明,体系中的PMMA存在游离和接枝两种状态;拉曼光谱中峰的红移以及D峰与G峰强度比值的增加证明PMMA与MWNTs之间存在化学键作用;TGA结果表明PMMA在本体和超临界CO2中的接枝率分别为39%和27%。
PMMA-grafted multi-walled carbon nanotubes（MWNTs） were prepared by in-situ polymerization both in bulk and in supercritical CO2.The modified nanotubes were characterized by GPC,Raman spectra and TGA.GPC results show that there are two components in the samples,one is PMMA homopolymer,and the other is PMMA-gMWNTs.Both of Raman red shifts and increases of ID/IG indicate that PMMA are grafted on MWNTs by chemical bonds.TGA results suggest that the graft rates of the samples prepared by in-situ polymerization in bulk and in supercritical CO2 are 39% and 27% respectively.