Improved thermal fractionation technique for chain structure analysis of ethylene/alpha-olefin copolymers
文献类型：期刊论文
| 作者 | Zhang, FJ; Fu, Q; Lu, TJ; Huang, HY; He, TB |
| 刊名 | POLYMER
 |
| 出版日期 | 2002-02-01 |
| 卷号 | 43期号:3页码:1031-1034 |
| 关键词 | Thermal Fractionation Technique Ethylene/alpha-olefin Copolymer Crystalline Ethylene Sequence Length |
| ISSN号 | 0032-3861 |
| 英文摘要 | In this report, we describe an improved thermal fractionation technique used to characterize the polydispersity of crystalline ethylene sequence length (CESL) of ethylene/alpha -olefin copolymers. After stepwise isothermal crystallization, the crystalline ethylene sequences are sorted into groups by their lengths. The CESLs are estimated using melting points of known hydrocarbons. The content of each group is determined using the calibrated peak area. The statistical terms: the arithmetic mean (L) over bar (n), the weighted mean (L) over bar (w) and the broadness index I = (L) over bar (w)/(L) over bar (n) are used to describe the distribution of CESL. Results show that improved thermal fractionation technique can quantitatively characterize the polydispersity of CESL with a high degree of accuracy. (C) 2001 Elsevier Science Ltd. All fights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000172607500047 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/78875]  |
| 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, Jilin, Peoples R China 2.Sichuan Univ, Dept Polymer Sci & Mat, Chengdu 610065, Peoples R China 3.Liaoning Univ, Coll Chem Sci & Engn, Liaoning 110036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, FJ,Fu, Q,Lu, TJ,et al. Improved thermal fractionation technique for chain structure analysis of ethylene/alpha-olefin copolymers[J]. POLYMER,2002,43(3):1031-1034. |
| APA | Zhang, FJ,Fu, Q,Lu, TJ,Huang, HY,&He, TB.(2002).Improved thermal fractionation technique for chain structure analysis of ethylene/alpha-olefin copolymers.POLYMER,43(3),1031-1034. |
| MLA | Zhang, FJ,et al."Improved thermal fractionation technique for chain structure analysis of ethylene/alpha-olefin copolymers".POLYMER 43.3(2002):1031-1034. |
入库方式： OAI收割
来源：化学研究所
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