Morphologies of metallocene-catalyzed short chain branched polyethylene single crystals formed from the melt at higher temperature
文献类型：期刊论文
| 作者 | Liu, JP; Zhang, FJ; Xie, FC; Du, BY; Fu, Q; He, TB |
| 刊名 | POLYMER
 |
| 出版日期 | 2001-06-01 |
| 卷号 | 42期号:12页码:5449-5452 |
| 关键词 | Short Chain Branched Polyethylene Single Crystal Elongated Lamellae |
| ISSN号 | 0032-3861 |
| 英文摘要 | Metallocene-catalyzed short chain branched polyethylene single crystals, formed from the melt at a higher crystallization temperature of 114 degreesC, were obtained. Highly elongated lamellae were formed, which are different from truncated lozenge or lenticular shaped single crystals formed at a lower crystallization temperature. It was found that there existed a definite line in the lamellae along the longitudinal growth direction and two regions were separated by the definite line. The lateral habits of both the regions were asymmetrical about the b-axis due to the chain tilting, which was the same as that at a lower crystallization temperature. Generally, the highly elongated lamellae were not straight, but curved towards the opposite direction with chain tilting direction due to a series of edge dislocation within a lamella. The inner side of a lamella was serrated and the outer side was smooth due to the lamellar curvature. The thickness of both regions of a lamella was different, the broader region was thicker than the narrower region, which was different from the uniform thickness of the lamellae formed at a lower crystallization temperature. The different thicknesses within a lamella were considered as the result of the initial thickness difference and the impact of isothermal thickening. (C) 2001 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000167609400041 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/77135]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, TB |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Sichuan Univ, Dept Polymer Sci & Mat, Chengdu 610064, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, JP,Zhang, FJ,Xie, FC,et al. Morphologies of metallocene-catalyzed short chain branched polyethylene single crystals formed from the melt at higher temperature[J]. POLYMER,2001,42(12):5449-5452. |
| APA | Liu, JP,Zhang, FJ,Xie, FC,Du, BY,Fu, Q,&He, TB.(2001).Morphologies of metallocene-catalyzed short chain branched polyethylene single crystals formed from the melt at higher temperature.POLYMER,42(12),5449-5452. |
| MLA | Liu, JP,et al."Morphologies of metallocene-catalyzed short chain branched polyethylene single crystals formed from the melt at higher temperature".POLYMER 42.12(2001):5449-5452. |
入库方式： OAI收割
来源：化学研究所
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