12-硼钨酸钾掺杂聚苯胺的制备、表征和性能  

Preparation,characterization and property of polyaniline doped with 12-tungstoboric salt

作　　者：常青[1] 李冀蜀[1] 顾大伟[1] 殷鹏伟[1] 姜洪英[1] 沈临江[1] 

机构地区：[1]南京工业大学理学院,南京210009

出　　处：《中国科技论文》2014年第2期238-242,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(10774076);江苏省高校自然科学研究面上项目(09KJB140003;11KJB480003)

摘　　要：以过硫酸铵为氧化剂,采用化学氧化聚合法制备了12-硼钨酸钾(K5BW12O40·nH2O)与盐酸共掺杂的聚苯胺材料。通过傅里叶红外光谱分析、X射线衍射分析和电导率测试等手段研究了12-硼钨酸钾与苯胺单体的质量比(X)对掺杂聚苯胺结构和性能的影响,同时结合循环伏安测试研究了材料的电化学性质。结果表明,在掺杂过程中[BW12O40]5-作为对阴离子进入到聚苯胺链上,其含量随着X的增大而增多。进入分子链上的[BW12O40]5-阴离子会影响材料分子链排列的有序程度,进而影响材料的导电性能。合成的新材料可作为新型的电化学活性材料。Polyaniline （PANI）doped with K5 BW12 O40 ·nH2O was synthesized by chemical oxidative polymerization method in 1 mol·L-1 HCl solution,using ammonium peroxydisulfate as an oxidant.The effect of the initial weight ratio X of K5 BW12 O40 ·nH2O to aniline on the structure and property of material was investigated by using FT-IR,XRD and conductivity measurement. Furthermore,the electrochemical property of material was studied by cyclic voltammetry.The results indicated that [BW12 O40 ]5- anions were successfully incorporated into the chains of PANI,and its content in PANI chains increased with the increase of the initial weight ratio X.The [BW12 O40 ]5- anions incorporated into the chains of PANI could affect the ordering of PANI chains and the conductivity of the as-synthesized material.The new material has potential applications in the field of electrochemi-cal activity.

关 键 词：聚苯胺 硼钨酸盐 掺杂 电化学性能 化学氧化聚合 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]