ICCAS OpenIR
Crystal structure and morphology influenced by shear effect of poly(L-lactide) and its melting behavior revealed by WAXD, DSC and in-situ POM
Huang, Shaoyong2,3; Li, Hongfei3; Jiang, Shichun1; Chen, Xuesi2; An, Lijia3
2011-07-07
Source PublicationPOLYMER
ISSN0032-3861
Volume52Issue:15Pages:3478-3487
AbstractShear effect on crystal structure, morphology and melting behavior of poly(L-lactide) (PLLA) were investigated by wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC) and in-situ polarized optical microscope (POM). Influences of steady shear on PLLA melt was investigated during annealing. The impacts of crystallization temperature (T-c) and shear rate (SR) on crystal structure, crystal growth rate, nucleation, and melting behavior were studied. It could be clarified into the low (<20 s(-1)) and high shear rate ranges in terms of the crystal structure, growth rate, nucleation and melting behavior. It was found that phase transition and recrystallization during heating completely changed the stack structure. A new stable structure was established after a temperature jump in the melting range. Cylindric morphology arranged with spherulite was also observed in the polymer films at high T-c influenced by shear effect. (C) 2011 Elsevier Ltd. All rights reserved.
KeywordPoly(L-lactide) Shear Crystal Structure And Cylindric Morphology
DOI10.1016/j.polymer.2011.05.044
Indexed BySCI
Language英语
WOS IDWOS:000292533300029
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73834
Collection中国科学院化学研究所
Corresponding AuthorJiang, Shichun
Affiliation1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Huang, Shaoyong,Li, Hongfei,Jiang, Shichun,et al. Crystal structure and morphology influenced by shear effect of poly(L-lactide) and its melting behavior revealed by WAXD, DSC and in-situ POM[J]. POLYMER,2011,52(15):3478-3487.
APA Huang, Shaoyong,Li, Hongfei,Jiang, Shichun,Chen, Xuesi,&An, Lijia.(2011).Crystal structure and morphology influenced by shear effect of poly(L-lactide) and its melting behavior revealed by WAXD, DSC and in-situ POM.POLYMER,52(15),3478-3487.
MLA Huang, Shaoyong,et al."Crystal structure and morphology influenced by shear effect of poly(L-lactide) and its melting behavior revealed by WAXD, DSC and in-situ POM".POLYMER 52.15(2011):3478-3487.
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