用杂官能基縮聚中的脱酯縮聚方法制备聚有机钛硅氧烷时,发現并証实了硅钛有机化合物上的官能基(如—OR、—OCOCH_3等)很容易相互交換,我們称这种反应为官能基交換反应。在以上工作的基础上,对脫酯縮聚反应的历程及官能基交換反应的历程提出了初步意見。 When polyorganotitridosiloxanes were prepared by the de-esterification polycondensation method in the condensation of hetero functional groups, it was found that the functional groups (such as -OR, -OCOCH 3, etc.) on the organosilicon compounds can be easily exchanged with each other. This reaction is a functional exchange reaction. Based on the above work, some preliminary opinions on the course of de-esterification and the course of exchange reaction of functional groups were proposed.