引用本文:
唐业仓, 傅中, 罗时忠, 孙益民. 无皂乳液聚合合成均分散PMMA微球[J]. 应用化学,
2002, 19(10): 981-984.
Citation: TANG Ye-Cang, FU Zhong, LUO Shi-Zhong, SUN Yi-Min. Preparation of Monodispersed PMMA Microspheres by Emulsifier-Free Emulsion Polymerization[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 981-984.
Citation: TANG Ye-Cang, FU Zhong, LUO Shi-Zhong, SUN Yi-Min. Preparation of Monodispersed PMMA Microspheres by Emulsifier-Free Emulsion Polymerization[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 981-984.
无皂乳液聚合合成均分散PMMA微球
English
Preparation of Monodispersed PMMA Microspheres by Emulsifier-Free Emulsion Polymerization
Abstract:
Monodispersed polymethyl metharylate(PMMA) microspheres were synthesized by emulsifier-free emulsion polymerization under the microwave irradiation. 2,2'-Azobis(2-methylpropionamidine)dihydro chloride(AIBA) and potassium persulphate(KPS) were used as cationic and anionic initiators. The effects of initiator, heating ways and monomer concentration on the particle size, uniformity and polymerization rate were discussed. By using AIBA as an initiator, the diameter of particle obtained was smaller than the corresponding polymer particles initiated by KPS, but the polymerization rate was more rapid to give more particles. Increasing the monomer concentration increased the particle diameter but decreased the conversion rate and the number of particles. In comparison with the conventional heating method, microwave irradiation could shorten the polymerization time and give more particles with smaller particle diameter.
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