Preparation of silica/poly(tert-butylmethacrylate) core/shell nanocomposite latex particles

被引:12
作者
Liu, Xiaoyun
Zhao, Huipeng
Li, Lan
Yan, Jie
Zha, Liusheng
机构
[1] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai, Peoples R China
[2] Donghua Univ, Res Ctr Anal & Measurement, Shanghai, Peoples R China
来源
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY | 2006年 / 43卷 / 11期
关键词
inorganic/organic nanocomposite particles; core/shell structure; silica; crosslinked poly(tert-butylmethacrylate); 3-(trimethoxysilyl) propyl methacrylate; seed emulsion polymerization;
D O I
10.1080/10601320600939502
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Nanocomposite latex particles, with a silica nanoparticle as core and crosslinked poly(tert-butylmethacrylate) as shell, were prepared in this work. Silica nanoparticles were first synthesized by a sol-gel process, and then modified by 3-(trimethoxysilyl) propyl methacrylate ( MPS) to graft C=C groups on their surfaces. The MPS-modified silica nanoparticles were characterized by elemental analysis, FTIR, and Si-29 NMR and C-13-NMR spectroscopy; the results showed that the C=C groups were successfully grafted on the surface of the silica nanoparticles and the grafted substance was mostly the oligomer formed by the hydrolysis and condensation reaction of MPS. Silica/ poly( tert-butylmethacrylate) core/shell nanocomposite latex particles were prepared via seed emulsion polymerization using the MPS-modified silica nanoparticle as seed, tert-butylmethacrylate as monomer and ethyleneglycol dimethacrylate as crosslinker. Their core/shell nanocomposite structure and chemical composition were characterized by means of TEM and FTIR, respectively, and the results indicated that silica/poly(tert-butylmethacrylate) core/shell nanocomposite latex particles were obtained.
引用
收藏
页码:1757 / 1764
页数:8
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