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Core-shell attapulgite@polypyrrole composite with well-de?ned corn cob-like morphology via self-assembling and in situ oxidative polymerization
作者:Chao Yang, Peng Liu
關鍵字:Attapulgite, cob-like morpholog, self-assembling y
論文來源:期刊
具體來源:Synthetic Metals
發(fā)表時間:2011年

Conductive polypyrrole (PPy) layer was chemically grafted from the self-assembled monolayer (SAM)
coated on ATP, resulting in SAM-ATP@PPy composites after attapulgite (ATP) particles were surface
modi?ed. The composites possess high electrical conductivity at room temperature, weakly tempera-
ture dependence of the conductivity. X-ray diffraction (XRD) analysis con?rmed that the main peaks of
SAM-ATP@PPy composites are similar to the SAM-ATP particles, which reveal that the crystal structure
of SAM-ATP is well-maintained after the coating process under polymerization conditions and exhibit
semi-crystalline behavior. Thermogravimetric analysis shows that the thermal stability of SAM-ATP@PPy
composites was enhanced and these can be attributed to the retardation effect of amine-functionalized
ATP as barriers for the degradation of PPy. The morphology of SAM-ATP@PPy composites showed the
?brillar structure and well-de?ned corn cob-like morphology.

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