ICCAS OpenIR
Morphologies and structures in poly(l-lactide-b-ethylene oxide) copolymers determined by crystallization, microphase separation, and vitrification
Huang, Shaoyong1,2; Li, Hongfei1; Jiang, Shichun3; Chen, Xuesi2; An, Lijia1
2011-09-01
Source PublicationPOLYMER BULLETIN
ISSN0170-0839
Volume67Issue:5Pages:885-902
AbstractMorphologies and structures determined by crystallization of the blocks, microphase separation of the copolymers, and vitrification of PLLA block in poly(l-lactide-b-ethylene oxide) (PLLA-b-PEO) copolymers were investigated using microscopic techniques and synchrotron small angle X-ray scattering. The PLLA-b-PEO copolymer films were crystallized from two different annealing processes: melt crystallization (process A) or crystallized from glass state of PLLA block after quenching from melt state (process B). The relationship between the crystalline morphology and microstructure of the copolymers were explored using SAXS. The morphology and phase structure are predominated by crystallization of PLLA block, and greatly influenced by microphase separation of the copolymers. In process B, lozenge-shape and truncated lozenge-shaped PLLA crystals of nanometer scale can be observed. The crystalline morphology is markedly affected by the microstructure formed during the annealing process. Star-shaped morphologies stacked with PLLA single crystals were observed.
KeywordCrystallization Morphology Structure Microphase Separation Vitrification Poly(L-lactide-b-ethylene Oxide) coPolymer
DOI10.1007/s00289-011-0518-8
Indexed BySCI
Language英语
WOS IDWOS:000293635200011
PublisherSPRINGER
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73442
Collection中国科学院化学研究所
Corresponding AuthorAn, Lijia
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
3.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Huang, Shaoyong,Li, Hongfei,Jiang, Shichun,et al. Morphologies and structures in poly(l-lactide-b-ethylene oxide) copolymers determined by crystallization, microphase separation, and vitrification[J]. POLYMER BULLETIN,2011,67(5):885-902.
APA Huang, Shaoyong,Li, Hongfei,Jiang, Shichun,Chen, Xuesi,&An, Lijia.(2011).Morphologies and structures in poly(l-lactide-b-ethylene oxide) copolymers determined by crystallization, microphase separation, and vitrification.POLYMER BULLETIN,67(5),885-902.
MLA Huang, Shaoyong,et al."Morphologies and structures in poly(l-lactide-b-ethylene oxide) copolymers determined by crystallization, microphase separation, and vitrification".POLYMER BULLETIN 67.5(2011):885-902.
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