Aqueous dispersion of graphene sheets stabilized by ionic liquid-based polyether

被引：0
|
作者：
Hejun Gao
Shaohua Zhang
Fei Lu
Han Jia
Liqiang Zheng
机构：
[1] Shandong University,Key Laboratory of Colloid and Interface Chemistry, Ministry of Education
[2] China West Normal University,Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
来源：
Colloid and Polymer Science | 2012年 / 290卷
关键词：
Ionic liquid-based polyether; Graphene; Dispersion; Electrostatic repulsions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Graphene sheets can be effectively dispersed by a novel ionic liquid-based polyether, poly(1-glycidyl-3-methylimidazolium chloride) (PGMIC), in aqueous solution. The reduction of graphene oxide to graphene is confirmed by UV–Vis and Raman spectrum in aqueous solution of PGMIC. TEM image showed that the stable and uniform dispersion of graphene sheets were obtained. Both the TGA and AFM analysis indicated that the graphene sheet was covered by PGMIC. FTIR spectra demonstrated that n–π, cation–π interactions and electrostatic repulsions played important roles in the dispersion of graphene sheets.
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页码：1785 / 1791
页数：6
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