软模板法合成笔直有序导电聚吡咯微米棒  

Preparation of straight and orderly polypyrrole microrods through soft template methods

作　　者：刘锋[1] 石元昌[1] 张丙昌[1] 孙立波[1] 

机构地区：[1]山东大学材料科学与工程学院,山东济南250061

出　　处：《山东大学学报（工学版）》2011年第1期62-65,共4页Journal of Shandong University（Engineering Science）

摘　　要：采用化学氧化法,以十六烷基三甲基溴化铵(CTAB)为软模板,过硫酸铵(APS)为氧化剂,在CTAB/正戊醇/吡咯/水构成的微乳液体系中,合成了笔直有序的导电聚吡咯微米棒。运用傅里叶红外光谱(FTIR)对产物结构进行了分析,表明合成的产物为聚吡咯。运用透射电镜(TEM)对产物的形貌进行了表征,并讨论了反应温度、氧化剂的加入方式、助表面活性剂用量对产物形貌的影响。结果表明,在室温25℃,氧化剂滴加速度为1.5 h,表面活性剂CTAB与助表面活性剂正戊醇的质量比为0.6∶1.0,反应时间为24 h时,可获得直径约为300 nm,长度约为20μm的笔直有序的聚吡咯微米棒。The straight and orderly microrods of polypyrrole（Ppy） were synthesized in a microemulsion system that consisted of cetyltrimethylammonium bromide（CTAB）,n-pentanol,water and pyrrole by chemical oxidative polymerization,in which CTAB was used as soft templates and ammonium persulfate（APS） were used as the oxidant.Fourier-transform infrared spectroscopy（FTIR） were used to characterize the structure of the Ppy microrods.Transmission electron microscopy（TEM） and high resolution transmission electron microscopy（HRTEM） was used to characterize the morphology of the samples.The effects of temperature,the addition method of the oxidant,and the amount of cosurfactant n-pentanol to the morphology of Ppy microrods were discussed.The results showed that when the temperature was kept at room temperature（25 ℃）,the droping time of APS was about 1.5 h,the ratio of CTAB to n-pentanol was 0.6∶ 1.0,and the polymerization time was 24 h,the straight and orderly polypyrrole microrods with a diameter about 300nm and a length up to 20 μm were synthesized.

关 键 词：软模板法 微乳液 化学氧化法 聚吡咯微米棒 

分 类 号：O7[理学—晶体学] O6