苯乙烯-甲基丙烯酸羟乙酯无皂乳液聚合过程  

Soap-free Emulsion Copolymerization of Styrene with Hydroxyethyl Methacrylate

作　　者：魏凤玉[1] 王平华[1] 见玉娟[2] 

机构地区：[1]合肥工业大学化工学院,合肥230009 [2]安徽中医学院药学系

出　　处：《应用化学》2004年第7期748-750,共3页Chinese Journal of Applied Chemistry

摘　　要：The monodispersed latex particles were prepared by soap-free emulsion copolymerization of styrene(St) with hydroxyethyl methacrylate(HEMA). The nucleation mechanism and growth process of polymer latex particles were investigated. The effects of HEMA on diameter of the latex particles and monomer conversion were discussed. The elemental analysis and XRD results showed that HEMA was dispersed mainly on the surface of the latex particles, it could stabilize the latex particles and lead the nucleation. The nucleation of particles occurs likely by homogeneous nucleation mechanism. The diameter of the latex particles decreased and the conversion increased, as HEMA′s dosage increased.The monodispersed latex particles were prepared by soap-free emulsion copolymerization of styrene(St) with hydroxyethyl methacrylate(HEMA). The nucleation mechanism and growth process of polymer latex particles were investigated. The effects of HEMA on diameter of the latex particles and monomer conversion were discussed. The elemental analysis and XRD results showed that HEMA was dispersed mainly on the surface of the latex particles, it could stabilize the latex particles and lead the nucleation. The nucleation of particles occurs likely by homogeneous nucleation mechanism. The diameter of the latex particles decreased and the conversion increased, as HEMA′s dosage increased.

关 键 词：苯乙烯 甲基丙烯酸羟乙酯 无皂乳液聚合 成核机理 

分 类 号：O631.5[理学—高分子化学] TQ330[理学—化学]