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Citation: WU Yue-Huan, ZHAO Jian-Qing. Microemulsion Preparation of Acrylate Microlatex with High Solid Content[J]. Chinese Journal of Applied Chemistry, ;2008, 25(2): 218-223. shu

Microemulsion Preparation of Acrylate Microlatex with High Solid Content

WU Yue-Huan ^a,b,, ,
ZHAO Jian-Qing ^a

1.
a College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640;
2.
b Department of Applied Chemistry, Taiyuan Institute of Technology, Taiyuan 030008

Corresponding author: WU Yue-Huan,
Received Date: 5 March 2007
Available Online: 31 July 2007
Fund Project: 广州市科技攻关(2005Z3-D0331) (2005Z3-D0331)山西省自然科学基金(2007011035) (2007011035)山西省科技攻关(051150) (051150)山西省高校科技研究开发(20041251)项目 (20041251)

The all-acrylate micro-latex with ω(polymer)=40% and ω(emulsifier)=2.5% was synthesized by microemulsion polymerization.Influences of various factors such as monomers feeding rate,emulsifier level,amount of electrolyte,polymerization temperature and agitation speed on the properties of the latex were discussed,and a polymerization mechanism was proposed.The results suggested that the polymerization took place in the locus as in Winsor-polymerization system that included dropping monomer phase as reservoir and the O/W microemulsion phase as the polymerization locus.The dropped monomer diffused into the O/W microemulsion phase and propagated under such a slow agitation that the balance of polymerization was maintained and successive big polymer particles could not emerge,and then high solid content all-acrylate microlatex was prepared.The all-acrylate microlatex with m(monomer):m(emulsifer)=15:1 was prepared with 2.5% mass content of DowFax2A-1/OP-10,0.16% mass content of NaHCO₃ and 150 r/min of stirring rate at 75~80℃ for 4 h.
- acrylate,
- microemulsion polymerization,
- high solid content
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