期刊
ACS APPLIED MATERIALS & INTERFACES
卷 3, 期 8, 页码 3103-3109出版社
AMER CHEMICAL SOC
DOI: 10.1021/am200612z
关键词
graphene; polystyrene; melt blending; interactions; pi-pi stacking
资金
- National Natural Science Foundation of China [51003115]
- Ningbo Natural Science Foundation [2011A610118]
- Ningbo Key Lab of Polymer Materials [2010A22001]
The effect of melt blending on the interaction between graphene and polystyrene (PS) matrix has been investigated in this paper. The interaction between graphene and PS was significantly enhanced by melt blending, which led to an increased amount of PS-functional graphene (PSFG) exhibiting good solubility in some solvents. The PS chains on PSFG could effectively prevent the graphene sheets from aggregating and the prepared PS/PSFG composites exhibited a homogeneous dispersion and an improved electrical property. The mechanism of melt blending on this enhanced interaction was attributed to the formation pi-pi stacking during the melt blending. Moreover, the formation of chemical bonding during melt blending may have also enhanced the interaction.
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