多壁碳纳米管对PS分子量影响的研究  

Study on effect of MWNT on molecular weight of PS

作　　者：石岩[1] 李相美[1] 晋圣松[1] 边成香[1] 徐学诚[1] 

机构地区：[1]华东师范大学纳米功能材料与器件应用研究中心,上海200062

出　　处：《化学研究与应用》2006年第4期406-408,共3页Chemical Research and Application

基　　金：上海市纳米科技专项基金资助项目(0252nm011)

摘　　要：PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight of PS was higher than that of pure PS for the volume effect of MWNT terminating PS chains.And when the added amount of MWNT was larger,the molecular weight of PS was lower than that of pure PS for the weaker activity of free radicals and interference of MWNT.PS/MWNT composites have been prepared by supension polymerization. It was obvious that the yield of PS was lower for the addition of MWNT. GPC tests showed when the added amount of MWNT was smaller, the molecular weight of PS was higher than that of pure ps for the volume effect of MWNT terminating PS chains. And when the added amount of MWNT was larger,the molecular weight of PS was lower than that of pure PS for the weaker activity of free radicals and interference of MWNT.

关 键 词：PS/MWNT复合材料 分子量 透射电镜 凝胶渗透色谱 

分 类 号：O632.13[理学—高分子化学]