Solvent micro-evaporation and concentration gradient synergistically induced crystallization of poly(L-lactide) and ring banded supra-structures with radial periodic variation of thickness
文献类型：期刊论文
| 作者 | Huang, Shaoyong1; Li, Hongfei2; Wen, Huiying2; Yu, Donghong3; Jiang, Shichun4; Li, Gao1; Chen, Xuesi1; An, Lijia2 |
| 刊名 | CRYSTENGCOMM
 |
| 出版日期 | 2014 |
| 卷号 | 16期号:1页码:94-101 |
| ISSN号 | 1466-8033 |
| DOI | 10.1039/c3ce41664j |
| 英文摘要 | The crystalline morphology and structure of poly(L-lactide) (PLLA) in a PLLA film-chloroform system were investigated by means of wide angle X-ray diffraction (WAXD), polarized optical microscopy (POM) and atomic force microscopy (AFM). Birefringent and nonbirefringent ring banded supra-structures with radial periodic variation of thickness were obtained, which were induced by micro-evaporation of solvents and concentration gradient of PLLA. The ring banded morphologies consisted of multilayer lamellar crystals, which is a manifestation of alternating ridge and valley bands of periodic variation of thicknesses along the radial direction. The formation of the ring banded supra-structures is associated with diffusion and crystal growth induced periodic variation of concentration gradient, which is attributed to diffusion-related rhythmic growth and the competition between diffusion of polymer segments and growth of crystal lamellae. The mechanism of such banded-ring formation was explored on the basis of rhythmic growth resulting from non-linear diffusion. |
| 语种 | 英语 |
| WOS记录号 | WOS:000327606900017 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51745]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Huang, Shaoyong |
| 作者单位 | 1.Key Lab Polymer Ecomat, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Aalborg Univ, Dept Biotechnol Chem & Environm Engn, DK-9000 Aalborg, Denmark 4.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Shaoyong,Li, Hongfei,Wen, Huiying,et al. Solvent micro-evaporation and concentration gradient synergistically induced crystallization of poly(L-lactide) and ring banded supra-structures with radial periodic variation of thickness[J]. CRYSTENGCOMM,2014,16(1):94-101. |
| APA | Huang, Shaoyong.,Li, Hongfei.,Wen, Huiying.,Yu, Donghong.,Jiang, Shichun.,...&An, Lijia.(2014).Solvent micro-evaporation and concentration gradient synergistically induced crystallization of poly(L-lactide) and ring banded supra-structures with radial periodic variation of thickness.CRYSTENGCOMM,16(1),94-101. |
| MLA | Huang, Shaoyong,et al."Solvent micro-evaporation and concentration gradient synergistically induced crystallization of poly(L-lactide) and ring banded supra-structures with radial periodic variation of thickness".CRYSTENGCOMM 16.1(2014):94-101. |
入库方式： OAI收割
来源：化学研究所
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