Evolutions of Morphology and Crystalline Ordering Upon Annealing of Quenched Isotactic Polypropylene
文献类型：期刊论文
| 作者 | Zhao, Junchai1,2; Qiu, Jie1,3; Niu, Yanhua1; Wang, Zhigang1 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 47期号:17页码:1703-1712 |
| 关键词 | Isotactic Polypropylene Morphology Transitions |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.21773 |
| 英文摘要 | Quenched mesomorphic isotactic polypropylene precursor material has been investigated as well as the material annealed at different temperatures. At room temperature, morphology and crystalline ordering of the materials have been studied by atomic force microscopy (AFM) and wide-angle X-ray diffraction (WARD). The nodular morphology of the mesomorphic precursor remains constant for annealing temperatures T(a) below 120 degrees C. Needle-like or leaf-like crystals form when T(a) approaches the melting temperature of the precursor. WARD data analyzed by peak-fitting indicate that the crystalline ordering along both the chain axis and the lateral directions quickly develops during the mesomorphic-to-monoclinic transition, but slowly after the transition (T(a) > 140 degrees C). Combining the AFM and WARD results it is proposed that two decoupled structure evolution mechanisms are occurring. During the transition, only the crystalline ordering is increasing, but not the size of the nodules. After the transition, the geometry of the nodules changes considerably, whereas there is little additional increase of crystalline ordering. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1703-1712, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000269090600007 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66189]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Shijiazhuang Railway Inst, Sch Mat Sci & Engn, Shijiazhuang 050043, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Junchai,Qiu, Jie,Niu, Yanhua,et al. Evolutions of Morphology and Crystalline Ordering Upon Annealing of Quenched Isotactic Polypropylene[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2009,47(17):1703-1712. |
| APA | Zhao, Junchai,Qiu, Jie,Niu, Yanhua,&Wang, Zhigang.(2009).Evolutions of Morphology and Crystalline Ordering Upon Annealing of Quenched Isotactic Polypropylene.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,47(17),1703-1712. |
| MLA | Zhao, Junchai,et al."Evolutions of Morphology and Crystalline Ordering Upon Annealing of Quenched Isotactic Polypropylene".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 47.17(2009):1703-1712. |
入库方式： OAI收割
来源：化学研究所
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