Preparation of Polymethyl Methacrylate(PMMA) Nanosphere and Technique of Coating Ag Layer

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Preparation of Polymethyl Methacrylate(PMMA) Nanosphere and Technique of Coating Ag Layer

CHEN Zhi-Hua^1,2, WU Zheng¹, ZHANG Qi-Qing², BAO Jian-Jun^1,4, WANG Lian-Zhou^1,3, LU Gao-Qing^1,3, ZHU Xian-Fang^1,2,3*

1. China-Australia Joint Laboratory for Functional Nanomaterials and Department of Physics,
2. Research Center of Biomedical Engineering, Materials College, Xiamen University, Xiamen 361005, China;
3. ARC Centre of Excellence for Functional Nanomaterials, University of Queensland, St Lucia, Brisbane Qld 4072, Australia;
4. State Key Laboratory of Polymer Materials Science and Engineering, Institute of Polymers, Sichuan University, Chengdu 610065, China

Received:2007-12-27 Revised:1900-01-01 Online:2008-10-10 Published:2008-10-10
Contact: ZHU Xian-Fang

Abstract

Abstract: In this paper, we reported a two-step technique for fabrication of PMMA/Ag nano coreshell structure with well-established processing parameters and an ease control. Firstly, we fabricated the monodisperse PMMA nanospheres with a diameter of about 170 nm by emulsifier-free emulsion polymerization. Then, we modified the PMMA nanospheres surface with (3-methacryloxypropyl) trimethoxysilane(MATS) and (3-mercaptopropyl) trimethoxysilane(MPTMS), resulting in a uniform sulfhydryl (SH)-group modified outlayer and Ag nanoparticles further grew on the modified surface of PMMA nanospheres with an effective interaction between sulfhydryl(SH) groups and Ag⁺. In doing so, finally we synthesized PMMA/Ag core-shell composited nanoparticles. The structure of the synthesized sample was investigated by scanning electron microscopy(SEM), transmission electron microscopy(TEM) and UV-Vis extinction spectra. The results indicate that the well-dispersed PMMA/Ag core-shell nanoparticles with uniform particle size distribution were successfully fabricated using this improved technique.

Key words: Emulsifier-free emulsion polymerization, Surface modification, Nano PMMA/Ag coreshell structure

CLC Number:

O631

TrendMD:

CHEN Zhi-Hua^1,2, WU Zheng¹, ZHANG Qi-Qing², BAO Jian-Jun^1,4, WANG Lian-Zhou^1,3, LU Gao-Qing^1,3, ZHU Xian-Fang^1,2,3*. Preparation of Polymethyl Methacrylate(PMMA) Nanosphere and Technique of Coating Ag Layer[J]. Chem. J. Chinese Universities, doi: .

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Preparation of Polymethyl Methacrylate(PMMA) Nanosphere and Technique of Coating Ag Layer

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