ICCAS OpenIR
Ring-opening polymerization and block copolymerization of L-lactide with divalent samarocene complex
Cui, DM; Tang, T; Bi, WG; Cheng, JH; Chen, WQ; Huang, BT
2003-09-01
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume41Issue:17Pages:2667-2675
AbstractDivalent samarocene complex [(C5H9C5H4)(2)Sm(tetrahydrofuran)(2)] was prepared and characterized and used to catalyze the ring-opening polymerization of L-lactide (L-LA) and copolymerization of L-LA with caprolactone (CL). Several factors affecting monomer conversion and molecular weight of polymer, such as polymerization time, temperature, monomer/catalyst ratio, and solvent, were examined. The results indicated that polymerization was rapid, with monomer conversions reaching 100% within 1 h, and the conformation of L-LA was retained. The structure of the block copolymer of CL/L-LA was characterized by NMR and differential scanning calorimetry. The morphological changes during crystallization of poly(caprolactone) (PCL)-b-P(L-LA) copolymer were monitored with real-time hot-stage atomic force microscopy (AFM). The effect of temperature on the morphological change and crystallization behavior of PCL-b-P(L-LA) copolymer was demonstrated through AFM observation. (C) 2003 Wiley Periodicals, Inc.
KeywordRing-opening Polymerization Copolymerization Block Copolymers Catalysts L-lactide Lanthanocene Complexes
DOI10.1002/pola.10814
Indexed BySCI
Language英语
WOS IDWOS:000184650000005
PublisherWILEY-BLACKWELL
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81372
Collection中国科学院化学研究所
Corresponding AuthorTang, T
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Jilin Inst Technol, Dept Chem Engn, Changchun 130012, Peoples R China
Recommended Citation
GB/T 7714
Cui, DM,Tang, T,Bi, WG,et al. Ring-opening polymerization and block copolymerization of L-lactide with divalent samarocene complex[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2003,41(17):2667-2675.
APA Cui, DM,Tang, T,Bi, WG,Cheng, JH,Chen, WQ,&Huang, BT.(2003).Ring-opening polymerization and block copolymerization of L-lactide with divalent samarocene complex.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,41(17),2667-2675.
MLA Cui, DM,et al."Ring-opening polymerization and block copolymerization of L-lactide with divalent samarocene complex".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 41.17(2003):2667-2675.
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