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高等学校化学研究 ›› 2001, Vol. 17 ›› Issue (3): 325-330.

• Articles • 上一篇    下一篇

Microemulsion Polymerization of Methyl Methacrylat

DAN Yi, YANG Yun-hua, CHEN San-yu   

  1. State Key Laboratory of Polymer Materials Engineering, Department of Polymer Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
  • 收稿日期:2000-08-03 出版日期:2001-08-24 发布日期:2011-08-04
  • 基金资助:

    Supported by the National Natural Science Foundation of China(No.29974021) and the Educational Ministry of China.

Microemulsion Polymerization of Methyl Methacrylat

DAN Yi, YANG Yun-hua, CHEN San-yu   

  1. State Key Laboratory of Polymer Materials Engineering, Department of Polymer Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
  • Received:2000-08-03 Online:2001-08-24 Published:2011-08-04
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.29974021) and the Educational Ministry of China.

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摘要： The microemulsion polymerization of methyl methacrylate was studied.The effects of feeding modes on the structure and the properties of the obtained polymer microlatex were investigated by measuring the conversion, the transmittance and the refractive index of the latex, and by measuring the particle size, the molecular weight and the glass transition temperature (Tg) of the polymers.The results show that compared to the batch feeding mode, the semi-continuous feeding mode is more favorable to form a PMMA microlatex with a higher transmittance, a smaller particle size, a higher molecular weight and a higher Tg.And the obtained PMMA microlatex has a 30 %-40 % (mass fraction) polymer content, a 0.03 emulsifier/water weight ratio, a 0.05emulsifier/monomer weight ratio and a 17 nm average particle diameter, which is very important for the industrialization of the microemulsion polymerization technique.

关键词: Microemulsion polymerization, Methyl methacrylate, Feeding mode, Particle size

Abstract: The microemulsion polymerization of methyl methacrylate was studied.The effects of feeding modes on the structure and the properties of the obtained polymer microlatex were investigated by measuring the conversion, the transmittance and the refractive index of the latex, and by measuring the particle size, the molecular weight and the glass transition temperature (Tg) of the polymers.The results show that compared to the batch feeding mode, the semi-continuous feeding mode is more favorable to form a PMMA microlatex with a higher transmittance, a smaller particle size, a higher molecular weight and a higher Tg.And the obtained PMMA microlatex has a 30 %-40 % (mass fraction) polymer content, a 0.03 emulsifier/water weight ratio, a 0.05emulsifier/monomer weight ratio and a 17 nm average particle diameter, which is very important for the industrialization of the microemulsion polymerization technique.

Key words: Microemulsion polymerization, Methyl methacrylate, Feeding mode, Particle size