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Citation: YANG Ting-Ting, PENG Hui, YAO Li, CHENG Shi-Yuan, IN Jun Park. Cross-linking and Characterization of Perfluorinated Acrylate Copolymers[J]. Chinese Journal of Applied Chemistry, ;2006, 23(11): 1243-1248. shu

Cross-linking and Characterization of Perfluorinated Acrylate Copolymers

1.
a School of Chemistry and Materials Science, Hubei University, Wuhan 430062;
2.
b Department of Chemical Engineering, Korea Research Institute of Chemistry Technology, Taejon 305-606, South Korea

Corresponding author: CHENG Shi-Yuan,
Received Date: 18 November 2005
Available Online: 16 February 2006
Fund Project:

Self-crosslinking copolymers based on 2-(N-propylperfluorooctanesulfoamido) ethyl acrylate(FA),methyl methacrylate(MMA),n-butyl acrylate(n-BA) and sodium 2-acrylamide-2-methyl propanesulfonate(AMPSNa) were synthesized via soap-free emulsion polymerization with vinyl triethoxysilane(VTES) as a crosslinking agent.The structure and surface morphology of the copolymers were characterized by FT-IR,NMR,DSC and SPM,respectively.Further studies focused on the influence of cross-linking on the physical properties of perfluorinated acrylate copolymers.It was found that the water-and solvent-resistance properites were dramatically improved with increase of the extent of cross-linking.With VTES amount increasing,the values of the contact angle for water and oil first increased and then decreased,and the contact angle hysteresis was alleviated.The surface free energy of the FA copolymer films decreased from 27.2 mN/m to about 14.8 mN/m after cross-linking.
- perfluorinated acrylate,
- self-crosslinking,
- soap-free emulsion,
- contact angle hysteresis
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