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为了探讨苯胺聚合机理和苯环上不同取代基对聚苯胺性质的影响,我们将十六种邻、间、对位苯胺衍生物的盐酸溶液进行了恒电位电解,电解时,以0.1V为间隔从0.3V上升到1.20V(vs.SCE).十六种行生物中,取代基为氯的衍生物有对氯苯胺、邻氯苯胺、2,4-二氯苯胺和2,5-二氯苯胺;取代基为甲基的衍生物有对甲苯胺和邻甲苯胺.电解结果,仅发现邻氯苯胺和邻甲苯胺能在阳极铂片上聚合成蓝色的膜,但邻氯苯胺的聚合速度非常慢。本文通过循环伏安法、紫外可见光谱、ESR和磁化率的测定研究了聚邻甲苯胺的物理化学性质.
In order to investigate the mechanism of aniline polymerization and the effect of different substituents on the benzene ring on the properties of polyaniline, we catholyte sixteen kinds of hydrochloric acid solutions of o-, m- and p-aniline derivatives by potentiostatic electrolysis, From 0.3V to 1.20V (vs.SCE). Among the sixteen kinds of organisms, the derivatives with chlorine as substituent are p-chloroaniline, o-chloroaniline, 2,4-dichloroaniline and 2,5-dichloro Aniline, p-toluidine and o-toluidine as substitutes for methyl, and only o-chloroaniline and o-toluidine were found to be able to polymerize into blue films on the anode plate, but the o-chloroaniline polymerization rate very slow. In this paper, the physicochemical properties of poly-o-toluidine were studied by cyclic voltammetry, UV-vis spectra, ESR and magnetic susceptibility.