Multimolecule glasses and crystals of isotactic polystyrene
文献类型：期刊论文
| 作者 | Bu, HS ; Cao, J ; Xu, SY ; Zheng, Z ; Wunderlich, B |
| 刊名 | JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS
 |
| 出版日期 | 1999 |
| 卷号 | B38期号:3页码:251 |
| 关键词 | MOLECULE SINGLE-CRYSTALS POLY(ETHYLENE OXIDE) DILUTE-SOLUTIONS MELT MORPHOLOGY |
| ISSN号 | 0022-2348 |
| 通讯作者 | Wunderlich, B: Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. |
| 中文摘要 | When spreading dilute solutions of isotactic polystyrene (iPS) on water, it was observed that different concentrations produce different morphologies in the resulting amorphous films. From 10(-1) to 10(-2) wt% solutions, ribbonlike films and circular platelets of multimolecule aggregates were obtained. After isothermal crystallization of these amorphous films, lamellae, incipient spherulites, and single-molecule crystals were observed. The formation of lamellar crystals lying flat on the substrate is an indication of the absence of epitaxy by the substrate, which would require the molecular chains to be in the surface plane and thus yield lamellae normal to the substrate. The dense packing in the center of sheaf-like spherulites is caused by screw-dislocation growth, and it produces structures similar to shish kebabs. It was also observed that the lamellae grown from the center develop secondary growth spirals, causing the branching and splaying of the structure typical for spherulitic growth. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/42392]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Bu, HS,Cao, J,Xu, SY,et al. Multimolecule glasses and crystals of isotactic polystyrene[J]. JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS,1999,B38(3):251. |
| APA | Bu, HS,Cao, J,Xu, SY,Zheng, Z,&Wunderlich, B.(1999).Multimolecule glasses and crystals of isotactic polystyrene.JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS,B38(3),251. |
| MLA | Bu, HS,et al."Multimolecule glasses and crystals of isotactic polystyrene".JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS B38.3(1999):251. |
入库方式： OAI收割
来源：物理研究所
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