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Citation: HOU Yan-Qing, LI Zhong-Hua, GAO Xian-Ying, GUO Fa-Guang, LONG Guang-Dou. Application of Reactive Emulsifier in Soap-free Silica Sol Styrene-Acrylate Emulsion Polymerization[J]. Chinese Journal of Applied Chemistry, ;2009, 26(5): 616-618. shu

Application of Reactive Emulsifier in Soap-free Silica Sol Styrene-Acrylate Emulsion Polymerization

1.
College of Chemistry, Huazhong Normal University, Wuhan 430079

Corresponding author: LI Zhong-Hua,
Received Date: 28 April 2008
Available Online: 20 August 2008

The soap-free copolymer emulsion of silica sol and styrene-acrylate was synthesized by per-emulsified technology from silica sol,styrene and acrylate monomers with ammonium persulfate(APS) as initiator,and allylic oxygen nonylphenol ethoxylates ammonium sulfate(DNS-86) as emulsifier.The structure of the latex particles of the emulsion was characterized by IR.The influential factors including the content and the addition procedure of the reactive emulsifier were discussed.It was found that the performance of the emulsion was good when the reactive emulsifier used was 3%,silica sol amount used 1.5% at a polymerization tempe-rature of 80 ℃.In this way,the rate of monomer conversion was 95.1% and the water-absorption of the emulsion film was 8%.
- reactive emulsifier,
- silica sol,
- polystyrene-acrylate emulsion,
- emulsion polymerization
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