Lateral habits of single crystals of metallocene-catalyzed low molecular weight short chain branched polyethylene from the melt
文献类型：期刊论文
| 作者 | Liu JP ; Xie FC ; Du BY ; Zhang FJ ; Fu Q ; He TB |
| 刊名 | polymer
 |
| 出版日期 | 2000 |
| 卷号 | 41期号:24页码:8573-8577 |
| 关键词 | HIGH-TEMPERATURES SOLUTION CRYSTALLIZATION LINEAR POLYETHYLENE GROWTH MORPHOLOGY FRACTIONS KINETICS POLYMER |
| ISSN号 | 0032-3861 |
| 通讯作者 | he tb |
| 中文摘要 | the lateral habits of low molecular weight short chain branched polyethylene single crystals from the melt were studied. three crystallization temperatures (102, 104 and 106 degrees c) were selected for single crystal growth. it was found that the lateral habits of single crystals were asymmetric at all the crystallization temperatures selected. the electron diffraction patterns and tilting series experiments evidenced that there existed chain tilting in all the lamellae. it was the chain tilting that lead to the asymmetry of the growth rate and of lateral habits of the single crystals about the b-axis. the lateral habits substantially changed from the growth at 102 degrees c where the truncated lozenge single crystals formed with straight (110) faces to the growth at 104 degrees c where the lenticular single crystals appeared. this change occurred at 20 degrees c lower than that in a low molecular weight linear polyethylene with the same molecular weight. furthermore, kinetics theory analysis evidenced that the change of lateral habits from truncated lozenge to lenticular shape resulted from the transition of growth regime. the results were the same as that of high molecular weight linear polyethylene but different to that of low molecular weight linear polyethylene. it may be attributed by the existence of short branched chains. (c) 2000 elsevier science ltd. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000088612000012 |
| 公开日期 | 2010-11-04 |
| 源URL | [http://202.98.16.49/handle/322003/19643]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu JP,Xie FC,Du BY,et al. Lateral habits of single crystals of metallocene-catalyzed low molecular weight short chain branched polyethylene from the melt[J]. polymer,2000,41(24):8573-8577. |
| APA | Liu JP,Xie FC,Du BY,Zhang FJ,Fu Q,&He TB.(2000).Lateral habits of single crystals of metallocene-catalyzed low molecular weight short chain branched polyethylene from the melt.polymer,41(24),8573-8577. |
| MLA | Liu JP,et al."Lateral habits of single crystals of metallocene-catalyzed low molecular weight short chain branched polyethylene from the melt".polymer 41.24(2000):8573-8577. |
入库方式： OAI收割
来源：长春应用化学研究所
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