核-壳结构含氟丙烯酸酯乳液的合成与表征(英文)

被引：30

作者：

肖新颜

刘健飞

机构：

[1] SchoolofChemistryandChemicalEngineering,SouthChinaUniversityofTechnology

来源：

ChineseJournalofChemicalEngineering | 2008年 / 04期

关键词：

fluorine-containing polyacrylate emulsion; core-shell structure; seed emulsion polymerization;

D O I：

暂无

中图分类号：

TQ225.3 [卤代羧酸及其衍生物];

学科分类号：

0817 ;

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.

引用

页码：626 / 630

页数：5

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