芳杂环腈及其聚合物 ⅩⅤ.不同结构芳香族腈的聚合及其聚合物结构的测定

Aromatic and Heterocyclic Nitriles and Their Polymers ⅩⅤ.The Polymerization of Some Aromatic Nitriles and Determination of the Structure of Polymer

本文研究了十二种不同取代基的芳香族腈在Lewis酸-金属体系催化下的聚合反应。结果表明,取代基的吸电子能力越强,聚合反应速率越快。其速率常数与Hammett方程中的取代基特性常数σ值呈线性关系。此外,对聚合物的结构也进行了测定。

The polymerization of twelve aromatic nitriles catalyzed by Lewis acid-metal systems was investigated.The polymerization rate is greatly enhanced when an electron withdrawing group is substitubed in aromatic nitriles. The polymerization rate constants are proportional to the Hammett constant of substituted group. In addition, the structure of polymers was also determined.