PMMA纳米球的制备及其银膜包覆技术. Preparation of polymethyl methacrylate(PMMA) nanosphere and technique of coating Ag layer

陈志华 Chen, Zhi-Hua, 吴政 Wu, Zheng, 张其清 Zhang, Qi-Qing, 包建军 Bao, Jian-Jun, 王连洲 Wang, Lian-Zhou, 逯高清 Lu, Gao-Qing and 朱贤方 Zhu, Xian-Fang (2008) PMMA纳米球的制备及其银膜包覆技术. Preparation of polymethyl methacrylate(PMMA) nanosphere and technique of coating Ag layer. 高等學校化學學報, 29 10: 2070-2073.

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Author 陈志华 Chen, Zhi-Hua
吴政 Wu, Zheng
张其清 Zhang, Qi-Qing
包建军 Bao, Jian-Jun
王连洲 Wang, Lian-Zhou
逯高清 Lu, Gao-Qing
朱贤方 Zhu, Xian-Fang
Title PMMA纳米球的制备及其银膜包覆技术. Preparation of polymethyl methacrylate(PMMA) nanosphere and technique of coating Ag layer
Translated title Preparation of polymethyl methacrylate(PMMA) nanosphere and technique of coating Ag layer
Language of Title chi
eng
Journal name 高等學校化學學報   Check publisher's open access policy
Translated journal name Chemical Journal of Chinese Universities
Language of Journal Name chi
eng
ISSN 0251-0790
Publication date 2008-10-10
Sub-type Article (original research)
Volume 29
Issue 10
Start page 2070
End page 2073
Total pages 4
Place of publication Changchun, China
Publisher Jilin Daxue
Language chi
eng
Subject 03 Chemical Sciences
Formatted abstract
采用无皂乳液聚合法制备了单分散、直径为170 nm左右的聚甲基丙烯酸甲酯(PMMA)纳米球, 然后利用3-甲基丙烯酰氧基丙基三甲氧基硅烷(MATS)和3-巯丙基三甲氧基硅烷(MPTMS)对PMMA纳米球进行表面改性, 在其表面包覆一层均匀的巯基, 通过巯基与银离子之间的相互作用, 使银在PMMA纳米球表面成核长大, 从而合成PMMA/Ag纳米球壳粒子. 通过扫描电子显微镜、投射电子显微镜和紫外-可见吸收光谱测试技术对产物性能进行了表征, 研究结果表明, 制备的PMMA/Ag纳米球壳粒子的分散性好、包覆均匀.

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.
Keyword Emulsifier-free emulsion polymerization
Optical properties
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Chemical Engineering Publications
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Created: Thu, 03 Sep 2009, 09:20:36 EST by Mr Andrew Martlew on behalf of Functional Nanomaterials