Abstract: The title versatate/silicone modified acrylate emulsions were prepared by means em -contnuous seed emulsion polymerization and pre -emulsification technology with of versatate(V-10)and silicone(A-171) as modified monomer, using reactive anionic surfactant(DNS-86)and nonionic surfactant(OP-10 ) as compound emulsifier. The structure and properties of prepared emulsions and emulsion film were characterized by fourier transform infrared spectrometer( FT-IR), transmission electron microscopy(TEM), particle size distribution(PSD), differential scanning calorimetry (DSC) and thermogravimetry(TG). The results showed that V-10, A-171 were copolymerized with acrylate monomer. The latex particles were of core-shell structure and the particle size was small and uniform. The performance of versatate/silicone modified acrylate emulsion with core-shell structure was better companing with acrylate emulsion, versatate -acrylate emulsion, silicone-acrylate emulsion.The water absorption rate of emulsion film was 2. 19% only and the contact alee was 109. 5°,which reached the target of modification.

Key words: versatate, silicone, acrylate, emulsion polymerization

摘要： 采用预乳化半连续种子乳液聚合法，以反应型阴离子乳化剂（DNS-86）和非离子型乳化剂（OP-10）复配，引入叔碳酸乙烯酯（V-10）和乙烯基三甲氧基硅烷（A-171）为改性单体合成了叔碳酸乙烯酯／有机硅改性丙烯酸酯乳液。通过红外光谱（FT-IR）、透射电镜（TEM）、粒径分布分析（PSD）、差示扫描量热法（DSC）和热重分析（TG）对乳液结构、粒子形态和乳胶膜性能进行了分析和表征。结果表明：叔碳酸乙烯酯、有机硅氧烷与丙烯酸酯发生了共聚反应，生成的乳胶粒子为核壳型结构，粒子大小比较均一，粒径较小。通过与丙烯酸酯、叔碳酸乙烯酯改性丙烯酸酯、有机硅改性丙烯酸酯的乳液对比可知，核壳型叔碳酸乙烯酯／有机硅改性丙烯酸酯乳液的性能较佳。其涂膜吸水率仅为2.19%；接触角为109.5°，达到了对乳液改性的目的。

关键词: 叔碳酸乙烯酯, 有机硅, 丙烯酸酯, 乳液聚合