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Title of Journal: Chin J Polym Sci

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Abbravation: Chinese Journal of Polymer Science

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Chinese Chemical Society and Institute of Chemistry, CAS

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DOI

10.1007/s10653-007-9108-y

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1439-6203

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Effects of functionalized graphenes on the isother

Authors: Lifen Zhao Qi Li Ruliang Zhang Xiujuan Tian Lei Liu
Publish Date: 2015/11/13
Volume: 34, Issue: 1, Pages: 111-121
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Abstract

The effects of graphene oxide GO with polar groups and functionalized GO fGO with nonpolar groups on the isothermal crystallization of polyLlactide PLLA were compared Functionalized GO was obtained by grafting octadecylamine and characterized by FTIR WAXD and TGA Isothermal crystallization kinetics of PLLA/GO and PLLA/fGO nanocomposites were investigated by combining DSC data and Avrami equation The results showed that fGO could improve PLLA crystallization rate more obviously than GO By analyzing the morphology obtained from POM SEM and TEM it was found fGO with large layer space dispersed better in PLLA and supplied more nucleation sites than GO Therefore for the multilayer graphene increasing the layer spaces is important to improve its dispersion in polymers which will cause the crystal kinetics changing of polymers

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