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2003•Journal of South China Normal UniversityRequires access

EMULSION POLYMERIZATION OF MMA/BA IN THE PRESENCE OF FRESH SURFACE ACTIVE MONOMER

Zhu Zhi-bo

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Abstract

Emulsifier-free copolymers of MMA/BA were synthesized.The results of GPC showed that number-average molecular weight ( n) was 2 0×104, weight-average molecular weight ( w) was equal to 4 5×104 and poly dispersion was 2 25. The DSC thermogram of soapless latex copolymer showed that the glass temperature(T g) was 27 4 ℃.The composition of copolymer was judged by FTIR.The dispersion of the coating system was examined by TEM. Spherical particals were observed and their particle diameter were equal to 175 nm. Surface active monomer on the latex is also discussed. The lacquer was of best quality.

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What this paper is about

Emulsifier-free copolymers of MMA/BA were synthesized.The results of GPC showed that number-average molecular weight ( n) was 2 0×104, weight-average molecular weight ( w) was equal to 4 5×104 and poly dispersion was 2 25. The DSC thermogram of soapless latex copolymer showed that the glass temperature(T g) was 27 4 ℃.The composition of copolymer was judged by FTIR.The dispersion of the coating system was examined by TEM. Spherical particals were observed and their particle diameter were equal to 175 nm. Surface active monomer on the latex is also discussed. The lacquer was of best quality.

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Available abstract

Emulsifier-free copolymers of MMA/BA were synthesized.The results of GPC showed that number-average molecular weight ( n) was 2 0×104, weight-average molecular weight ( w) was equal to 4 5×104 and poly dispersion was 2 25. The DSC thermogram of soapless latex copolymer showed that the glass temperature(T g) was 27 4 ℃.The composition of copolymer was judged by FTIR.The dispersion of the coating system was examined by TEM. Spherical particals were observed and their particle diameter were equal to 175 nm. Surface active monomer on the latex is also discussed. The lacquer was of best quality.

Key concepts: Copolymer, Monomer, Emulsion polymerization, Polymer chemistry, Materials science, Dispersion (optics), Polymerization, Dispersion polymerization

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