Concise route to styryl-modified multi-walled carbon nanotubes for polystyrene matrix and enhanced mechanical properties and thermal stability of composite

被引：20

作者：

Chen, Xianhong ^{[1
]}

Tao, Feng ^{[1
]}

Wang, Jianfeng ^{[1
]}

Yang, Huajun ^{[1
]}

Zou, Jiagui ^{[1
]}

Chen, Xiaohua ^{[1
]}

Feng, Xue ^{[2
]}

机构：

[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510641, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 499卷 / 1-2期

关键词：

Multi-walled carbon nanotubes; Polystyrene; Mechanical properties; Thermal stability; POLYMER COMPOSITES; PURIFICATION; WATER;

D O I：

10.1016/j.msea.2008.09.044

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Effective functionalization of multi-walled carbon nanotubes (MWCNTs) with styryl group was carried out via the esterification reaction of the carboxylate salt of carbon nanotubes and 4-vinylbenzyl chlorides in toluene. The functionalized MWCNTs were characterized through STIR and Raman spectra to confirm the styryl groups covalently connected to the surface of MWCNTs. The weight loss of functionalized moieties determined by thermogravimetry-differential scanning calorimertry analysis is around 36%. Nanotube-reinforced polystyrene were fabricated by mixing functionalized MWCNTs and polystyrene. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images showed that the functionalized nanotubes had a better dispersion than the unfunctionalized MWCNTs in the matrix. Moreover, styryl-modified MWCNTs/PS nanocompsite presented obvious improvements in mechanical properties and thermal stability. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：469 / 475

页数：7

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