Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/26679
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    標題: The preparation and characteristics of poly(methyl methacrylate acid)/nano-ZnO composite latex particles
    作者: Lee, Chia-Fen
    Liu, Yu-Sheng
    貢獻者: 化粧品應用與管理系
    關鍵字: Composite
    Methyl methacrylate
    Methylacrylate acid
    ZnO
    Soapless emulsion polymerization
    日期: 2011-10
    上傳時間: 2013-06-03 15:53:01 (UTC+8)
    出版者: Springer-Verlag
    摘要: In this work, poly(methyl methacrylate-co-methylacrylate acid)/ZnO (poly(MMA–MAA)/ZnO) composite latex particle was synthesized by three steps The first step was to synthesize poly(MMA–MAA) copolymer latex particles by soapless emulsion polymerization. Following the first step, the second step was to polymerize MMA, MAA and 3,3-(trimethoxysilyl) propyl methacrylate (MPS) in the presence of poly(MMA–MAA) seed latex particles to form the poly(MMA–MAA)/poly(MMA–MAA–MPS) core–shell latex particles. In the third step, the poly(MMA–MAA)/poly(MMA–MAA–MPS) latex particles reacted with ZnO nanoparticles, which were synthesized by a traditional sol gel method, to form the polymer/inorganic poly(MMA–MAA)/poly(MMA–MAA–MPS)/ZnO composite latex. In this study, MPS with silanol groups essentially was used as the coupling agent to couple with ZnO nanoparticles, while the results of the study showed that there was not covalent bond existed between ZnO particles and polymer latex. The ZnO particles were adsorbed on the surface of polymer latex by electrostatic interaction. Besides, the linear poly(MMA–MAA)/crosslinking poly(MMA–MAA–MPS) core–shell latex particles which were synthesized in the second step were heated in the presence of ammonia to form the hollow poly(MMA–MAA–MPS) latex particles. The factors of heating time and concentration of crosslinking agent significantly influenced the morphology of hollow poly(MMA–MAA–MPS) latex particles.
    關聯: Polymer Bulletin 67(7), pp. 1245-1259
    显示于类别:[化妝品應用與管理系(所)] 期刊論文

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