多壁碳纳米管掺溴及表面高分子修饰的研究  

MWNTs doped with bromine and surface modification by polystyrene

作　　者：唐国强[1] 梁旦[1] 韩菲菲[1] 王红敏[1] 晋圣松[1] 徐学诚[1] 

机构地区：[1]华东师范大学物理系纳米功能材料与器件研究中心,上海200062

出　　处：《华东师范大学学报（自然科学版）》2008年第5期84-89,共6页Journal of East China Normal University(Natural Science)

基　　金：上海市纳米科技专项基金(0252nm011)

摘　　要：用溴作为掺杂剂,通过多壁碳纳米管(MWNTs,multi-walled nanotubes)吸附溴提高其电导率,用聚苯乙烯(PS,polystyrene)对MWNT进行修饰改性.用透射电镜(TEM,transmission electron microscope)和扫描电镜(FESEM,field emitting scanning electron microscope)等分析研究.表明在多壁碳纳米管上接枝了高分子聚苯乙烯.PS接枝并没有降低加溴多壁碳纳米管的电导率,且在高分子基体中的分散性得到了明显的改善.Bromine as a dopant was adsorbed onto MWNTs to enhance the electrical conductivi- ty of MWNTs. MWNTs were also modified by polystyrene. TEM and FESEM indicate that the modification of polystyrene improved the dispersion of Br-MWNTs in polymer matrix while the electrical conductivity of Br-MWNTs did not decrease.

关 键 词：多壁碳纳米管 电导率 聚苯乙烯 分散性 

分 类 号：O631.23[理学—高分子化学]