Preparation and characterization of a PMMA/Ce(OH)3, Pr2O3/graphite nanosheet composite

被引:83
作者
Mo, ZL [1 ]
Sun, YX
Chen, H
Zhang, P
Zuo, DD
Liu, YZ
Li, HJ
机构
[1] NW Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China
[2] Northwestern Polytech Univ, Coll Mat Sci & Engn, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
composites; graphite nanosheet (NanoG); Ce(OH)(3)-Pr2O3;
D O I
10.1016/j.polymer.2005.10.117
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
An easy process for the synthesis of poly(methyl methacrylate)/Ce(OH)(3), Pr2O3/graphite nanosheet (PMMA/Ce(OH)(3), Pr,O-3/NanoG) composite was developed. Graphite nanosheets (NanoG) were prepared by treating the expanded graphite with sonication in aqueous alcohol solution. The PMMA/Ce(OH)(3), Pr2O3/NanoG composites were prepared via in situ polymerization of MMA monomer in the presence of graphite nanoshects and Ce(OH)(3), Pr2O3 through reverse micelle template, in which the methyl methacrylate was designated as the oily phase. The composites were then dispersed with chloroform and coated on glass slides to form films. Scanning and transmission electron microscopy were used to characterize the structure and dispersion of the graphite nanosheets and the composites. The results showed that the high-aspect-ratio structure of the nanosheets played an important role in forming a conducting network in the PMMA matrix. From thermogravimetric analysis, the introduction of graphite nanosheets and inorganic nanopartices exhibited a beneficial effect on the thermal stability of PMMA. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:12670 / 12676
页数:7
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