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采用恒电位方法实现了吡咯与己内酰胺在导电玻璃电极上的直接电化学共聚,聚合反应在含有0.1mol/L吡咯和1.5 mol/L己内酰胺的硝基甲烷电解质溶液中进行,外加电位控制在1.2 V以上.聚合产物中聚吡咯与聚己内酰胺链段的组成可通过调节合成电位加以控制.共聚物的形貌、结构与性质采用扫描电子显微镜、热重分析、红外光谱等手段加以表征.结果表明,吡咯与己内酰胺混合液在电极上的电化学氧化产生了两者的共聚物而非共混物,共聚物显示了比聚吡咯较好的柔性.对吡咯与己内酰胺电化学共聚的可能机理进行了探讨.
Direct electrochemical copolymerization of pyrrole and caprolactam on a conductive glass electrode was carried out by a potentiostatic method. The polymerization was carried out in a nitromethane electrolyte solution containing 0.1 mol / L pyrrole and 1.5 mol / L caprolactam. The applied potential was controlled at 1.2 V .The composition of polypyrrole and polycaprolactam segments in the polymerization product can be controlled by adjusting the potential of synthesis.The morphology, structure and properties of the copolymer were characterized by means of scanning electron microscopy, thermogravimetric analysis and infrared spectroscopy.The results showed that, Electrochemical oxidation of a mixture of pyrrole and caprolactam on the electrode produced a copolymer rather than a blend of the two, indicating that the copolymer showed better flexibility than polypyrrole. Possible mechanisms for the electrochemical copolymerization of pyrrole and caprolactam were explored .