Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure

›› 2008, Vol. 16 ›› Issue (4): 626-630.

Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure

肖新颜, 刘健飞

School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

收稿日期:2007-07-26 修回日期:2008-01-30 出版日期:2008-08-28 发布日期:2008-08-28
通讯作者: XIAO Xinyan, E-mail: cexyxiao@scut.edu.cn
基金资助:
the National Natural Science Foundation of China(20476035,20846003)

Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure

XIAO Xinyan, LIU Jianfei

School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

Received:2007-07-26 Revised:2008-01-30 Online:2008-08-28 Published:2008-08-28
Supported by:
the National Natural Science Foundation of China(20476035,20846003)

摘要/Abstract

摘要： A fluorine-containing polyacrylate copolymer emulsion was synthesized by a seed emulsion polymerization method, in which methyl methacrylate (MMA) and butyl acrylate (BA) were used as main monomers and hexafluorobutyl methacrylate (HFMA) as fluorine-containing monomer. The structure and properties were characterized by Fourier transform infrared spectrum (FT-IR), transmission electron microscopy (TEM), particle size analysis, X-ray photoelectron spectroscopy (XPS), contact angle (CA), differential scanning calorimetry (DSC) and thermogravimetry (TG) analysis. The FTIR and TEM results showed that HFMA was effectively involved in the emulsion copolymerization, and the formed emulsion particles had a core-shell structure and a narrow particle size distribution. XPS and CA analysis revealed that a gradient concentration of fluorine existed in the depth profile of fluorine-containing emulsion film which was richer in fluorine and more hydrophobic in one side. DSC and TG analysis also showed that a clear core-shell structure existed in the fluorine-containing emulsion particles, and their film showed higher thermal stability than that of fluorine-free emulsion.

关键词: fluorine-containing polyacrylate emulsion, core-shell structure, seed emulsion polymerization

Abstract: A fluorine-containing polyacrylate copolymer emulsion was synthesized by a seed emulsion polymerization method, in which methyl methacrylate (MMA) and butyl acrylate (BA) were used as main monomers and hexafluorobutyl methacrylate (HFMA) as fluorine-containing monomer. The structure and properties were characterized by Fourier transform infrared spectrum (FT-IR), transmission electron microscopy (TEM), particle size analysis, X-ray photoelectron spectroscopy (XPS), contact angle (CA), differential scanning calorimetry (DSC) and thermogravimetry (TG) analysis. The FTIR and TEM results showed that HFMA was effectively involved in the emulsion copolymerization, and the formed emulsion particles had a core-shell structure and a narrow particle size distribution. XPS and CA analysis revealed that a gradient concentration of fluorine existed in the depth profile of fluorine-containing emulsion film which was richer in fluorine and more hydrophobic in one side. DSC and TG analysis also showed that a clear core-shell structure existed in the fluorine-containing emulsion particles, and their film showed higher thermal stability than that of fluorine-free emulsion.

Key words: fluorine-containing polyacrylate emulsion, core-shell structure, seed emulsion polymerization

肖新颜, 刘健飞. Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure[J]. , 2008, 16(4): 626-630.

XIAO Xinyan, LIU Jianfei. Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure[J]. , 2008, 16(4): 626-630.

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Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure

Synthesis and Characterization of Fluorine-containing Polyacrylate Emulsion with Core-Shell Structure

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