一种新淀粉接枝聚丙烯酰胺水包水乳液的合成及表征

Synthesis and characteristics of a new water-in-water type starch-AM emulsion

自制淀粉接枝聚丙烯酰胺乳液,得出最佳条件为A2B1C2D1,即反应温度55℃、引发剂量为0.01 g、单体量为6 g、硫酸浓度为5%时,淀粉接枝产物产率为92.35%、溶解时间为2 min.对该乳液的的分散相与连续相进行了鉴定,确定其为水包水型;对分散相中的颗粒粒径进行了检测,粒径尺寸大小在0.1～10μm范围内,确定其符合胶体化学对乳液的定义.

Starch-AM emulsion was made in the laboratory,and the best condition is A2B1C2D1.When reaction temperature is 55 ℃,quality of monomer is 6g,induced dose is 0.01 g,consistence of vitriol is 5%,production efficiency of St-AM is 92.35%,dissolved time is 2min.Dispersed phase and continuous phase of the emulsion was identificated and it was water-in-water type.Particle size of dispersed phase was in the range of 0.1-10 μm,and it was conformed with the definition of colloid chemistry to emulsion.