Novel PEG functionalized graphene nanosheets: enhancement of dispersibility and thermal stability

被引：145
|
作者：
Zhang, Shupeng [1 ]
Xiong, Pan [1 ]
Yang, Xujie [1 ]
Wang, Xin [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Peoples R China
来源：
NANOSCALE | 2011年 / 3卷 / 05期
基金：
中国博士后科学基金;
关键词：
EXFOLIATED GRAPHITE OXIDE; LARGE-SCALE SYNTHESIS; COMPOSITE FILMS; SHEETS; REDUCTION; NANOCOMPOSITES; DISPERSIONS; PARTICLES; EFFICIENT; DELIVERY;
D O I：
10.1039/c0nr00923g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of polyethylene glycol (PEG) functionalized graphene sheet hybrid materials (FGHMs) have been successfully synthesized via ester linkages. Interestingly, our products can be dispersed in both polar/protic solvents and nonpolar/nonprotic ones, which differ significantly from previously reported systems and are of great value in the wide-spread application of these "carbon nanosheet" based materials by solution-phase processing. Furthermore, the addition of PEG-modified carbon nanosheets as nanofillers significantly improves the thermal stability of the bulk polymers. In our case, an increase of 35 K in thermal stability can be obtained for PEG4000 after filling with as low as 1 wt % of the PEG modified carbon sheets, suggesting their great potential as novel nanofillers in industry.
引用
收藏
页码：2169 / 2174
页数：6
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