聚噻吩及聚3-辛基噻吩结构与导电性能研究  

Structure and conductive properties of polythiophenes and poly(3-octylthiophene)

作　　者：韩菲菲[1] 梁旦[1] 王红敏[1] 唐国强[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）》2009年第2期129-135,共7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：采用化学氧化法在不同温度下制备聚噻吩和聚3-辛基噻吩,通过红外光谱(FTIR),X衍射分析(XRD),核磁共振谱图(NMR),X光电子能谱(XPS)和紫外可见光谱(UV-Vis)等手段对聚合物进行了研究。结果表明,聚噻吩侧链基团和制备温度会影响聚合物的构型结构,引起聚合物结晶度的变化。聚3-辛基噻吩结晶度最低,低温制备的聚噻吩结晶度最高。导电性能研究表明,聚噻吩的构型结构和结晶度直接影响其电导率。Polythiophene and Poly（3-octylthiophene） were synthesized by direct oxidative poly- merization under different temperatures. The chemical structure of samples were characterized by FTIR, XRD, NMR,XPS and UV-Vis respectively. The results showed that the strcture and the degree of crystallinity（DC） of samples depended on the length of side chain and reaction tempera- ture. Poly（3-octylthiophene） has a lower DC. Polytbiophene prepared under low temperature has a higher DC. Experimental results suggested that there is certain relationship between DC, chemical structure and conductivity of samples.

关 键 词：聚噻吩 聚3-辛基噻吩 侧链 导电性能 结晶度 

分 类 号：O632.1[理学—高分子化学]