Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites
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Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites
Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites
Chinese Journal of Polymer Science2016年34卷第1期 页码:111-121
Affiliations:
School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Author bio:
**Li-fen Zhao (赵丽芬), E-mail: lfzhao2009@126.com
Funds:
National Natural Science Foundation of China(51503117;51403119);Promotive Research Fund for Excellent Young and Middle-aged Scientisits of Shandong Province(BS2013CL032)
Li-fen Zhao, Qi Li, Ru-liang Zhang, 等. Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites[J]. Chinese Journal of Polymer Science, 2016,34(1):111-121.
Li-fen Zhao, Qi Li, Ru-liang Zhang, et al. Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites[J]. Chinese Journal of Polymer Science, 2016, 34(1): 111-121.
Li-fen Zhao, Qi Li, Ru-liang Zhang, 等. Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites[J]. Chinese Journal of Polymer Science, 2016,34(1):111-121.DOI: 10.1007/s10118-016-1732-5.
Li-fen Zhao, Qi Li, Ru-liang Zhang, et al. Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites[J]. Chinese Journal of Polymer Science, 2016, 34(1): 111-121.DOI: 10.1007/s10118-016-1732-5.
Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites
The effects of graphene oxide (GO) with polar groups and functionalized GO (fGO) with nonpolar groups on the isothermal crystallization of poly(
L
-lactide) (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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