Nonisothermal crystallization behavior of poly (L-lactide)-poly(ethylene glycol) dibloick copolymer
文献类型：期刊论文
| 作者 | Yang, JL; Zhao, T; Cui, JJ; Liu, LJ; Zhou, YC; Li, G; Zhou, EL; Chen, XS |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 27期号:6页码:1162-1166 |
| 关键词 | Plla-peg Nonisothermal Crystallization Ozawa Equation Crystalline Morphology |
| ISSN号 | 0251-0790 |
| 英文摘要 | The nonisothermal crystallization behavior of poly (L-lactide)-poly(ethylene glycol) ( PLLA-PEG) diblock copolymer was studied by means of real-time WAXD, DSC and POM, and Ozawa equation was used to analyze the kinetics of PLLA-PEG under nonisothermal crystallization conditions. During the crystallization of the high-T-m block (PLLA), the low-T-m block (PEG) acts as a noncrystalline diluent, and the crystallization behavior of PLLA obeys the Ozawa theory. When the PEG block begins to crystallize, the PLLA phase is always partially solidified and the presence of the spherulitic microstructure of PLLA profoundly restricts its crystallization behavior, which results in that the overall crystallization process does not obey the Ozawa equation. Furthermore, the study of the crystalline morphology of PLLA-PEG at different cooling rates indicates that when the cooling rate is from low to high, the crystalline morphology undergoes a transformation from the ring-banded spherulites to the typical Maltese cross spherulites, which experiences the mixed crystalline morphologies of ring-banded and typical Maltese cross spherulites, and the spherulitic size becomes smaller. |
| 语种 | 英语 |
| WOS记录号 | WOS:000238377500042 |
| 出版者 | HIGHER EDUCATION PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58571]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, G |
| 作者单位 | 1.Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, JL,Zhao, T,Cui, JJ,et al. Nonisothermal crystallization behavior of poly (L-lactide)-poly(ethylene glycol) dibloick copolymer[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(6):1162-1166. |
| APA | Yang, JL.,Zhao, T.,Cui, JJ.,Liu, LJ.,Zhou, YC.,...&Chen, XS.(2006).Nonisothermal crystallization behavior of poly (L-lactide)-poly(ethylene glycol) dibloick copolymer.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,27(6),1162-1166. |
| MLA | Yang, JL,et al."Nonisothermal crystallization behavior of poly (L-lactide)-poly(ethylene glycol) dibloick copolymer".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 27.6(2006):1162-1166. |
入库方式： OAI收割
来源：化学研究所
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