Synthesis and Properties of Core-shell Fluorosilicone-containing Acrylate Latexes

Abstract

Abstract: The core-shell silicon-containing fluorinated acrylate latex was obtained via semi-continuous seed emulsion polymerization in which butyl acrylate(BA) served as the core, methyl methylacrylate(MMA), methyl dodecafluorinacrylate(DFHMA in commercial name), 3-methacryloxypropyltrimethoxysilane(MPTMS) and methyltrimethoxysilane(MTMS)(BA/MMA/DFHMA MPTMS/MTMS) served as the shell of copolymer. FTIR, SEM-EDX, and DSC were used not only to analyze the properties of the latexes and films, but also to investigate the effect of DFHMA and MPTMS/MTMS content on the latexes and films. TEM was employed for characterizing the morphology structure and the particle size of the core-shell latex. The results indicate that the copolymers presented uniform spherical core-shell partials with 20—30 nm in diameter, the content of F and Si element on the surface of films have a great effect on the characteristics of the films, and when m(DFHMA)/m(MPTMS+MTMS)=3/1, the film shows much more favorable characteristics both in latex and in film.

Key words: Semi-continuous seed emulsion polymerization, Fluorosilicone-containing polymer, Core-shell structure, Film characteristics

CLC Number:

O631

TrendMD:

HE Ling, XU Yan, ZHU Jiang-Gan, LIANG Jun-Yan*. Synthesis and Properties of Core-shell Fluorosilicone-containing Acrylate Latexes[J]. Chem. J. Chinese Universities, doi: .

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Synthesis and Properties of Core-shell Fluorosilicone-containing Acrylate Latexes

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