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Citation: ZHANG Fa-Ai, ZHU Xing-Hua. Emulsion Polymerization of 2-Hydroxyethyl Methacrylate[J]. Chinese Journal of Applied Chemistry, ;2008, 25(5): 592-595. shu

Emulsion Polymerization of 2-Hydroxyethyl Methacrylate

ZHANG Fa-Ai ^, ,
ZHU Xing-Hua

1.
Department of Material and Chemical Engineering, Guilin University of Technology, Guilin 541004

Corresponding author: ZHANG Fa-Ai,
Received Date: 2 May 2007
Available Online: 25 July 2007
Fund Project: 新材料及其制备新技术广西区重点实验室资助课题(桂科能063006-5C-06) (桂科能063006-5C-06)

The effects of initiator system,emulsifier type and amount,reaction temperature,and electrolyte on monomer conversion,coagulum content,particle size and distribution for the emulsion polymerization of the water-soluble 2-hydroxyethyl methacrylate (HEMA) were investigated.The results showed the oil-soluble initiator azoisobutyronitrile (AIBN) may increase the monomer conversion and decrease the coagulum;the amount of the emulsifier had little effect on the monomer conversion,but the coagulum greatly decreased with the increase of the amount of the emulsifier.As the reaction temperature increased from 65℃ to 85℃,the monomer conversion increased first and then decreased,and the coagulum increased continuously,and the ideal reaction temperature was 75℃.The presence of electrolyte,NaHCO₃,decreased the monomer conversion;the particle distribution index was broader and multimodal distributions were observed.
- hydroxyethyl methacrylate,
- emulsion polymerization,
- monomer conversion,
- coagulum,
- particle size and distribution
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