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當(dāng)前位置:> 首頁 > 論文著作 > 正文
Polypyrrole/vermiculite nanocomposites via self-assembling and in situ chemical oxidative polymerization
作者:Chao Yang, Peng Liu,, Jinshan Guo, YunpuWang
關(guān)鍵字:Vermiculite,Self-assembled monolayer,Encapsulated structure
論文來源:期刊
具體來源:Synthetic Metals
發(fā)表時(shí)間:2011年

Conductive polypyrrole (PPy) was chemically grafted from the self-assembled monolayer (SAM) coated
on expanded vermiculite (VMT), resulting in PPy/VMT nanocomposites after VMT particles were surface
modi?ed. X-ray diffraction (XRD) analysis con?rmed that the main peaks of PPy/VMT nanocomposites
are similar to the SAM–VMT particles, which reveal that the crystal structure of SAM–VMT is well main-
tained after the coating process under polymerization conditions and exhibit semi-crystalline behavior.
Thermogravimetric analysis shows that the thermal stability of PPy/VMT nanocompositeswas enhanced
and these can be attributed to the retardation effect of amine-functionalized VMT as barriers for the
degradation of PPy. Themorphology of PPy/VMT nanocomposites showed the sheet structure and encap-
sulated morphology. The composites possess high electrical conductivity at room temperature, weakly
temperature dependence of the conductivity.

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