文献类型：期刊文献

中文题名：氧化剂用量和酸浓度对聚苯胺纳米纤维结构和电性能的影响

英文题名：Effects of Oxidant Dosage and Acidity on the Structure and Electrical Properties of Polyaniline Nanofibers

作者：苏畅[1];王庚超[1];黄发荣[1]

机构：[1]华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海200237

年份：2008

卷号：34

期号：4

起止页码：524

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：20083911603590);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚苯胺纳米纤维;界面聚合;形态结构;电导率

外文关键词：PANI nanofibers; interracial polymerization; morphological structure; conductivity

摘要：采用界面聚合法制备了聚苯胺纳米纤维,详细研究了不同氧化剂/单体摩尔比和盐酸浓度对制得聚苯胺的形貌、分子结构和电导率的影响。结果表明:界面聚合过程中,较低的氧化剂/单体摩尔比(≤1∶4)和较高的盐酸浓度(≥1 mol/L)有利于生成结构规整和较高电导率的聚苯胺纤维;而在氧化剂用量较高和盐酸浓度较低时,聚苯胺纤维形成的同时,伴随着吩嗪类物质和苯胺齐聚物的生成,产物呈现聚集结构,其电导率也较低。
Polyaniline （PANI） nanofibers were synthesized by interfacial polymerization. The effects of the molar ratio of ammonium persulfate （APS） to aniline （ANI） [n（APS）/n（ANI）] and hydrochloric acid concentration on the morphology, chain structures and electrical properties of the PANI were investigated in detail. The results show that low [n（APS）/n（ANI）] and high c（HCl） were propitiours to the preparation of PANI with uniformly fibrillar morphology. However, polyaniline nanofibers with much phenazine type material and aniline oligomers were synthesized under high E n （APS）/n （ANI）] and low c（HCl）, which exhibit the aggregated morphology and low electrical conductivity.