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Citation: CHEN Jian-Bing, WANG Wu-Sheng, WANG Yu, ZENG Jun, WANG Ai-Dong. Synthesis of Tri-block co-Polymer Dispersions of Aqueous Fluorine-containing Polyacrylate and Polyurethane and Characterization of Their Film Morphologies[J]. Chinese Journal of Applied Chemistry, ;2006, 23(2): 198-202. shu

Synthesis of Tri-block co-Polymer Dispersions of Aqueous Fluorine-containing Polyacrylate and Polyurethane and Characterization of Their Film Morphologies

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a Research Center of Water-borne Macromolecule;
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b College of Chemistry and Engineering, Anhui University, Hefei 230039;
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c Department of Chemistry, Chizhou College, Chizhou

Corresponding author: WANG Wu-Sheng,
Received Date: 15 May 2005
Available Online: 5 September 2005

A hydroxyl-terminal fluorine-containing macromonomer of about 6 000 molecule weight was synthesized by radical copolymerization of dodecafluroheptyl acrylate with other vinyl monomers in the presence of mercaptoethanol as chain-transfer agent.A tri-block co-polymer was obtained by reacting the macromonomer with NCO-terminal prepolymer with build-in hydrophilic groups.An aqueous block co-polymer dispersion was prepared by dispersing the tri-block co-polymer in water.The TEM photograph shows that the dispersion particles have a core-shell structure,and the fluorine-containing polyacrylate forms micro domains in the continuous polyurethane phase;ART,XPS and contact angle studies show that the fluorine groups are enriched in the film surface.
- fluorine-containing acrylate,
- aqueous polyurethane dispersion,
- surface structure,
- core-shell dispersion
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