Gel-g-(BA-AN)接枝共聚物乳液粒度的研究

Study of the Granularity in the Graft Copolymer Gel-g- (BA-AN) Emulsion

在合成Ｇｅｌ－ｇ（ＢＡ－ＡＮ）明胶三元接枝共聚物乳液时，通过改变引发剂用量的方法，可以调节共聚物乳液粒度的大小；将含有不同平均粒度的乳液应用于胶片的护膜层中，测定乳液粒度对胶片的物机性能的影响。

The granularity in the emulsion of the graft copolymer Gel-g- (BA--AN)could be ad justed with altering the concentration of the initiator K2S2O8 during the preparation. The grafting copolymeric emulsions with different average granularity were added into the protec-tive layer of the films and their physico - mechanical properties were measured. It was re-vealed that the concentration of K2S2O8 was not only of the great influence on graft parame-ters PG,GE,Mn and m,but also on granularity of the copolymeric emulsion, and theresis-tance to scratching as well as permeability of the film were increased with the increasing the granularity of the grafting system.