Synthesis and Characterization of Monodisperse Emulsion Copolymer  

作　　者：JIANG Yan SUN Xu LI Bin REN Xiaojun ZHANG Hongwen ZHANG Rong 

机构地区：[1]School of Material Science and Engineering, Changzhou University, Changzhou 213164, P. R. China [2]Department of Chemistry, College of Liberal Arts and Sciences, University of Colorado, Denver 80217-3364, USA [3]Jiangsu Chenguang Paint Co., Ltd., Changzhou 213154, P. R. China

出　　处：《Chemical Research in Chinese Universities》2016年第1期134-139,共6页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（No.51203105）, the China Postdoctoral Science Foundation （No.2014M551602）, the Jiangsu Provincial Industrial Support Program, China（No.BE2014821）, the Jiangsu Postdoctoral Science Foundation, China（No.1401083B） and the Research Prospective Study of Jiangsu Province, China（Nos.BY2014037-05, BY2015027-10, BY2015027-22）.

摘　　要：Monodisperse emulsion copolymer was synthesized by semi-continuous core-shell emulsion polymerization of styrene, butyl acrylate and γ-methacryloxypropyl trimethoxy silane（KH570）. The emulsion particles size and its polydispersion were measured by dynamic light scattering（DLS）. The properties of emulsion copolymer were characterized by differential scanning calorimetry（DSC）, thermogravimetric analysis（TGA） and measurement of contact angle. The particle morphology was observed under a transmission electron microscope（TEM） and atomic force microscopy（AFM）. The results indicate that emulsion nanoparticles containing silicon possess core-shell structures and narrow polydispersity（PDI≤0.08）. The thermal stability and hydrophobicity of emulsion copolymer were improved with KH570 introduced into the system.Monodisperse emulsion copolymer was synthesized by semi-continuous core-shell emulsion polymerization of styrene, butyl acrylate and γ-methacryloxypropyl trimethoxy silane（KH570）. The emulsion particles size and its polydispersion were measured by dynamic light scattering（DLS）. The properties of emulsion copolymer were characterized by differential scanning calorimetry（DSC）, thermogravimetric analysis（TGA） and measurement of contact angle. The particle morphology was observed under a transmission electron microscope（TEM） and atomic force microscopy（AFM）. The results indicate that emulsion nanoparticles containing silicon possess core-shell structures and narrow polydispersity（PDI≤0.08）. The thermal stability and hydrophobicity of emulsion copolymer were improved with KH570 introduced into the system.

关 键 词：γ-Methacryloxypropyl trimethoxy silane（KH570） Emulsion polymerization Monodisperse nanoparticle 

分 类 号：TQ221.211[化学工程—有机化工] O632.52[理学—高分子化学]