ICCAS OpenIR
Isothermal Crystallization Behavior of Poly(L-lactic acid)/Organo-Montmorillonite Nanocomposites
Li, Xiaoxiu1; Yin, Jingbo1; Yu, Zhenyang1; Yan, Shifeng1; Lu, Xiaochun1; Wang, Yinjie1; Cao, Bin1; Chen, Xuesi2
2009-09-01
Source PublicationPOLYMER COMPOSITES
ISSN0272-8397
Volume30Issue:9Pages:1338-1344
AbstractThe isothermal crystallization behavior of poly(L-lactic acid)/organo-montmorillonite nanocomposites (PLLA/OMMT) with different content of OMMT, using a kind of twice-functionalized organoclay (TFC), prepared by melt intercalation process has been investigated by optical depolarizer. In isothermal crystallization from melt, the induction periods (t(i)) and half times for overall PLLA crystallization (100 degrees C <= T(c) <= 120 degrees C) were affected by the temperature and the content of TFC in nanocomposites. The kinetic of isothermal crystallization of PLLA/TFC nanocomposites was studied by Avrami theory. Also, polarized optical photomicrographs supplied a direct way to know the role of TFC in PLLA isothermal crystallization process. Wide angle X-ray diffraction (WAXD) patterns showed the nanostructure of PLLA/TFC material, and the PLLA crystalline integrality was changed as the presence of TFC. Adding TFC led to the decrease of equilibrium melting point of nanocomposites, indicating that the layered structure of clay restricted the full formation of crystalline structure of polymer. The specific interaction between PLLA and TFC was characterized by the Flory-Huggins interaction parameter (B), which was determined by the equilibrium melting point depression of nanocomposites. The final values of B showed that PLLA was more compatible with TFC than normal OMMT. POLYM. COMPOS., 30:1338-1344,2009. (C) 2008 Society of Plastics Engineers
DOI10.1002/pc.20721
Indexed BySCI
Language英语
WOS IDWOS:000269341500019
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67540
Collection中国科学院化学研究所
Corresponding AuthorYin, Jingbo
Affiliation1.Shanghai Univ, Dept Polymer Mat, Shanghai 201800, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiaoxiu,Yin, Jingbo,Yu, Zhenyang,et al. Isothermal Crystallization Behavior of Poly(L-lactic acid)/Organo-Montmorillonite Nanocomposites[J]. POLYMER COMPOSITES,2009,30(9):1338-1344.
APA Li, Xiaoxiu.,Yin, Jingbo.,Yu, Zhenyang.,Yan, Shifeng.,Lu, Xiaochun.,...&Chen, Xuesi.(2009).Isothermal Crystallization Behavior of Poly(L-lactic acid)/Organo-Montmorillonite Nanocomposites.POLYMER COMPOSITES,30(9),1338-1344.
MLA Li, Xiaoxiu,et al."Isothermal Crystallization Behavior of Poly(L-lactic acid)/Organo-Montmorillonite Nanocomposites".POLYMER COMPOSITES 30.9(2009):1338-1344.
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