ICCAS OpenIR
Dependence of morphology on composition of poly(L-lactide)-poly(ethylene glycol) multiblock copolymers
Luo, WJ; Li, SM; Bei, JZ; Wang, SG
2002-03-01
Source PublicationPOLYMERS FOR ADVANCED TECHNOLOGIES
ISSN1042-7147
Volume13Issue:3-4Pages:233-238
AbstractPoly(L-lactide)-poly(ethylene glycol) (PLA-PEG) multiblock copolymers with predetermined short blocks (M-n less than or equal to 3000) were synthesized by polyesterification of PLA diols with PEG diacids in the presence of dicyclohexycarbodiimide and dimethylamide pyridine. The molecular structure and morphological features of the resulting copolymers were characterized by analytical techniques, such as gel permeation chromatography (GPC), viscometry, H-1-NMR, differential scanning calorimetry (DSC), X-ray diffractometry. The dependence of the morphology on the molecular structure was analyzed in detail. The results indicated flint these copolymers were markly improved in practical properties, such as miscibility between the two components, non-crystallinity. And the regular variation in these respects suggests that the properties of the copolymers can be modulated by adjusting the block length of the two components. Copyright (C) 2002 John Wiley Sons, Ltd.
KeywordPoly(L-lactide) Poly(Ethylene Glycol) Multi-block Copolymer Morphology Crystallinity
DOI10.1002/pat.179
Indexed ByISTP ; SCI
Language英语
WOS IDWOS:000174200300014
PublisherJOHN WILEY & SONS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79162
Collection中国科学院化学研究所
Corresponding AuthorWang, SG
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Luo, WJ,Li, SM,Bei, JZ,et al. Dependence of morphology on composition of poly(L-lactide)-poly(ethylene glycol) multiblock copolymers[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2002,13(3-4):233-238.
APA Luo, WJ,Li, SM,Bei, JZ,&Wang, SG.(2002).Dependence of morphology on composition of poly(L-lactide)-poly(ethylene glycol) multiblock copolymers.POLYMERS FOR ADVANCED TECHNOLOGIES,13(3-4),233-238.
MLA Luo, WJ,et al."Dependence of morphology on composition of poly(L-lactide)-poly(ethylene glycol) multiblock copolymers".POLYMERS FOR ADVANCED TECHNOLOGIES 13.3-4(2002):233-238.
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