一、引言非线型缩聚物的凝胶化理论最初由Flory和Stockmayer提出,近年来已分为三个分支,即(i)计算凝胶化的临界反应程度;(ii)确定体系的凝胶化区域;(iii)讨论凝胶点以后的溶胶和凝胶分配问题。计算凝胶化的临界反应程度有许多方法,其中以唐敖庆用非线型缩聚物的重均分子量趋于无穷大算出的临界反应程度较为简单。确定凝胶化区域(固化区)有较 I. INTRODUCTION The theory of gelation of nonlinear polycondensates was first proposed by Flory and Stockmayer and has been divided into three branches in recent years, namely (i) to calculate the critical extent of gelation; (ii) to determine the gel of the system (Iii) discuss the sol and gel assignments after the gel point. There are many ways to calculate the critical reaction degree of gelation, in which the critical reaction degree calculated by the average molecular weight of non-linear polycondensates by Tang Aoqing tends to infinity is relatively simple. Determine the gelation area (curing zone) more