Studies on the intermolecular structural heterogeneity of a propylene-ethylene random copolymer using preparative temperature rising elution fractionation
文献类型：期刊论文
| 作者 | Liu, YG; Bo, SQ; Zhu, YJ; Zhang, WH |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2005-07-05 |
| 卷号 | 97期号:1页码:232-239 |
| 关键词 | Polypropylene Copolymer Temperature Rising Elution Fractionation (Tref) Gpc C-13-nmr |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.21761 |
| 英文摘要 | The intermolecular structural heterogeneity of a propylene-ethylene random copolymer was studied by preparative temperature rising elution fractionation combined with GPC, C-13-NMR, differential scanning calorimetry, and wide-angle X-ray diffraction analysis of the obtained fractions. The isotacticity of fractions increased with increasing elution temperature, and the ethylene content decreased monotonously. Fitting of the obtained comonomer triad sequences by Bernoullian and first-order Markovian statistical models indicated that lower isospecific active sites are more active toward ethylene. The isolated ethylene unit disrupted the crystallizable isotactic sequence and lowered the crystallizability of the polypropylene chain. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 232-239, 2005. |
| 语种 | 英语 |
| WOS记录号 | WOS:000229066800029 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/56363]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Bo, SQ |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, YG,Bo, SQ,Zhu, YJ,et al. Studies on the intermolecular structural heterogeneity of a propylene-ethylene random copolymer using preparative temperature rising elution fractionation[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2005,97(1):232-239. |
| APA | Liu, YG,Bo, SQ,Zhu, YJ,&Zhang, WH.(2005).Studies on the intermolecular structural heterogeneity of a propylene-ethylene random copolymer using preparative temperature rising elution fractionation.JOURNAL OF APPLIED POLYMER SCIENCE,97(1),232-239. |
| MLA | Liu, YG,et al."Studies on the intermolecular structural heterogeneity of a propylene-ethylene random copolymer using preparative temperature rising elution fractionation".JOURNAL OF APPLIED POLYMER SCIENCE 97.1(2005):232-239. |
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来源：化学研究所
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