中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Study on the Oriented Recrystallization of Carbon-Coated Polyethylene Oriented Ultrathin Films

文献类型:期刊论文

作者Chang, Haibo2,3; Guo, Qipeng4; Shen, Deyan2; Li, Lin2; Qiti, Zhaobin1; Wang, Feng1; Yan, Shouke1,2
刊名JOURNAL OF PHYSICAL CHEMISTRY B
出版日期2010-10-21
卷号114期号:41页码:13104-13109
ISSN号1520-6106
DOI10.1021/jp106995f
英文摘要It is confirmed that a layer of vacuum-evaporated carbon on the surface of a preoriented ultrathin polymer film can lead to an oriented recrystallization of the polymer film. This has been attributed to a strong fixing effect of vacuum-evaporated carbon layer on the film surface of the polymer. To study the origin of the strong fixing effect of vacuum-evaporated carbon layer on the polymer films, the melting and recrystallization behaviors of the preoriented ultrathin PE film with a vacuum-evaporated carbon layer were studied by using atomic force microscopy, electron diffraction, Fourier transform infrared spectroscopy, and Raman spectroscopy. We found that there exists some extent of chain orientation of carbon-coated polyethylene (PE) preoriented ultrathin film above its melting temperature. These oriented PE chain sequences act as nucleation sites and induce the Oriented recrystallization of preoriented PE film from melt. Raman spectroscopy results suggest that new carbon-carbon bonds between the carbon layer and the oriented PE film are created during the process of vacuum carbon evaporation. As a result, some of the PE chain stems are fixed to the coated carbon substrate via covalent bond. Such a bonding has retarded the relaxation of the PE chains at the spot and, therefore, preserves the original orientation of the PE stems at high temperature, which in turn derives the recrystallization of the PE chains in an oriented structure.
语种英语
WOS记录号WOS:000282855100009
出版者AMER CHEMICAL SOC
源URL[http://ir.iccas.ac.cn/handle/121111/69751]  
专题中国科学院化学研究所
通讯作者Wang, Feng
作者单位1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
3.Henan Univ, Coll Chem & Chem Engn, Kaifeng 475001, Peoples R China
4.Deakin Univ, Ctr Mat & Fibre Innovat, Geelong, Vic 3271, Australia
推荐引用方式
GB/T 7714
Chang, Haibo,Guo, Qipeng,Shen, Deyan,et al. Study on the Oriented Recrystallization of Carbon-Coated Polyethylene Oriented Ultrathin Films[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2010,114(41):13104-13109.
APA Chang, Haibo.,Guo, Qipeng.,Shen, Deyan.,Li, Lin.,Qiti, Zhaobin.,...&Yan, Shouke.(2010).Study on the Oriented Recrystallization of Carbon-Coated Polyethylene Oriented Ultrathin Films.JOURNAL OF PHYSICAL CHEMISTRY B,114(41),13104-13109.
MLA Chang, Haibo,et al."Study on the Oriented Recrystallization of Carbon-Coated Polyethylene Oriented Ultrathin Films".JOURNAL OF PHYSICAL CHEMISTRY B 114.41(2010):13104-13109.

入库方式: OAI收割

来源:化学研究所

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