【摘要】 采用溶液聚合法合成邻甲基苯胺聚合物 (POT) ,由于甲基的空间位阻效应大于其给电子效应 ,不利于获得高分子量聚合物 ,从讨论引发剂用量对聚合反应的影响 ,得出可获得数均分子量为 1.90× 10 3的 POT的聚合条件 :反应温度为 0℃ ,p H≤ 1,[M]=1.5 5 4 mol/L,[KPS]/[M]=1∶ 1(摩尔比 ) ,反应时间 2 4 .0 h。1H- NMR和 FT- IR分析结果表明 ,POT聚合物链为半氧化还原结构 emeraldine ,结构单元中苯醌比为 3∶ 1更多还原

【Abstract】 In this work poly o toluidide(POT) was synthesized by solution polymerization. Since steric effects of methyl is stronger than its electronic effects, POT with high molecular weight is difficult to obtain. From analyzing the influence of initiator on polymerization reaction it follows that POT with number average molecular weight of 1.90 ×10 3 is prepared in the following conditions: 0 ℃, pH≤1, = 1.554 mol/L, /=1∶1, reaction period 24.0 h. According to 1H NMR and FT IR spectra the macromolecular chain of POT is composed of benzoid to quinoid units in the ratio of 3∶1.更多还原