The object of the present invention is to provide a method for producing an organic polymer having a terminal trimethoxy silyl group. In the method, the exchange reaction into a methoxy group can proceed within a short time even with a small amount of a catalyst, and viscosity increase caused by a side reaction during the methoxy exchange reaction can be reduced. Obtained polymer has an excellent stability, and viscosity increase during the storage of the polymer after the exchange into a trimethoxysilyl group can be reduced. The present invention provides a method comprising the steps of allowing an organic polymer having a silicon atom at a molecular terminus to react with methanol in the presence of a catalyst removable from an organic polymer and/or a deactivatable catalyst, wherein three hydrolyzable groups are bonded to the silicon atom, with the proviso that at least one of the three groups is a functional group other than methoxy group; and then removing the catalyst from the reaction mixture and/or deactivating the catalyst in the reaction mixture, to give the organic polymer having a terminal trimethoxysilyl group.
本发明的目的是提供一种生产具有末端
三甲氧基硅基的有机聚合物的方法。在该方法中,即使使用少量催化剂,也可在短时间内进行甲氧基交换反应,并可降低甲氧基交换反应期间副反应引起的粘度增加。获得的聚合物具有极佳的稳定性,并且可以降低聚合物在与
三甲氧基硅烷基团交换后的储存过程中粘度的增加。本发明提供了一种方法,包括以下步骤:让分子末端具有
硅原子的有机聚合物在可从有机聚合物中去除的催化剂和/或可失活催化剂存在下与
甲醇反应,其中三个可
水解基团与
硅原子键合,但三个基团中至少有一个是甲氧基以外的官能团;然后从反应混合物中去除催化剂和/或使反应混合物中的催化剂失活,得到具有末端
三甲氧基硅烷基团的有机聚合物。