期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
卷 49, 期 4, 页码 802-809出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00222341003603701
关键词
aqueous dispersion; conductivity; graphene; nanocomposite; poly(ethylene oxide); thermal properties
资金
- University of Ulsan
The nanocomposite films of a functionalized graphene sheet (FGS) and poly(ethylene oxide) (PEO) were cast from the physical blend of an aqueous FGS dispersion assisted by sodium dodecyl sulfate and an aqueous PEO solution. The thermal properties observed by differential scanning calorimetry suggested that FGS had a nucleating effect on the PEO crystallization. However, we found FGS actually hindered the growth of PEO crystals. The dynamic mechanical properties indicated that FGS effectively reinforced the matrix PEO. The FGS also efficiently improved the electric conductivity of PEO. With the addition of 2 parts of FGS per 100 parts of PEO, the conductivity was increased by more than 103-fold from that of pristine PEO.
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