Synthesis of poly(vinyl alcohol)/reduced graphite oxide nanocomposites with improved thermal and electrical properties

被引:281
作者
Javier Salavagione, Horacio [1 ]
Martinez, Gerardo [1 ]
Gomez, Marian A. [1 ]
机构
[1] CSIC, Inst Ciencia & Tecnol Polimeros, E-28006 Madrid, Spain
关键词
CARBON NANOTUBES; LOAD-TRANSFER; COMPOSITE; REINFORCEMENT; POLYMERS; CONDUCTIVITY; DISSOLUTION; FABRICATION; NANOSHEETS; MECHANISM;
D O I
10.1039/b904232f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Poly(vinylalcohol)/reduced graphite oxide nanocomposites have been synthesised by reducing graphite oxide in the presence of the polymer matrix and coagulating the system with 2-propanol. It has been observed that some interactions occur between the polymer and the reduced graphite oxide layers, mainly by hydrogen bonding. These interactions are responsible for a remarkable change in the thermal behaviour of the nanocomposites. In addition, high electrical conductivity has been achieved at concentrations beyond 7.5 wt% of reduced graphite oxide (similar to 0.1 S cm(-1)), with a percolation threshold between 0.5 and 1 wt%.
引用
收藏
页码:5027 / 5032
页数:6
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