A carbon black derivative with liquid behavior

被引：33
作者：
Li, Qi
Dong, Lijie
Liu, Yun
Xie, Haian
Xiong, Chuanxi [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
CARBON | 2011年 / 49卷 / 03期
基金：
中国国家自然科学基金;
关键词：
COMPOSITES; NANOPARTICLES; CONDUCTIVITY;
D O I：
10.1016/j.carbon.2010.11.027
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：
A carbon black derivative was prepared through a three-step procedure involving sonication-assisted oxidation, covalent grafting by a charged polysiloxane quaternary ammonium salt and ion exchange with a poly(ethylene) glycol-functionalized sulfonate salt. Such surface-functionalized carbon black can behave as a liquid at room temperature in the absence of any solvent. Transmission electron microscopy images reveal that, in contrast to the agglomeration behavior of the original carbon black, the derivative appears as monodisperse core-shell nanoparticles where the soft shell layer serves as a fluidization or suspending medium. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1047 / 1051
页数：5
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