AFM OBSERVATIONS OF MELTING BEHAVIOR OF POLY(ETHYLENE OXIDE) SINGLE CRYSTALS ON IPB-1 SUBSTRATES WITH DIFFERENT LAMELLAR ORIENTATION

doi:10.3724/SP.J.1105.2012.12073

CORC > 化学研究所 > 中国科学院化学研究所

	AFM OBSERVATIONS OF MELTING BEHAVIOR OF POLY(ETHYLENE OXIDE) SINGLE CRYSTALS ON IPB-1 SUBSTRATES WITH DIFFERENT LAMELLAR ORIENTATION
	Chai, Li-guo 1; Li, Lin 2; Liao, Qi 3; Yan, Shou-ke 1
刊名	ACTA POLYMERICA SINICA
	2012-11-20
期号	11 页码:1342-1348
关键词	Afm Isotactic Polybutene-1 Poly(Ethylene Oxide) Single Crystal Melting
ISSN号	1000-3304
DOI	10.3724/SP.J.1105.2012.12073
英文摘要	Regular single crystals of polyethylene oxide were obtained through solution crystallization. To study their melting behavior on different iPB-1 substrates, iPB-1 thin films with different lamellar orientation have been prepared by crystallizing from melt at different temperatures. AFM observation shows that crystallizing from melt in air at room temperature the iPB-1 film exhibits an edge-on lamellar structure with molecular chains in film plane. On the other hand,crystallizing from melt at 100 degrees C isothermally, the iPB-1 film has a flat-on lamellar orientation with molecular chains perpendicular to the film plane. The melting of PEO single crystals on these different iPB-1 surfaces was then monitored by in situ AFM observation. It was found that the PEO single crystals on edge-on and flat-on iPB-1 crystalline film surfaces melted approximately at same temperature, which was confirmed by theoretical calculation. However, the dewetting behavior of the molten PEO single crystals depends on the lamellar orientation of the iPB-1 evidently. The PEO melt on edge-on iPB-1 film surface shows somewhat a better wetting ability than on flat-on iPB-1 crystalline film surface.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000312116300020
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47825]
专题	中国科学院化学研究所
通讯作者	Chai, Li-guo
作者单位	1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Chai, Li-guo,Li, Lin,Liao, Qi,et al. AFM OBSERVATIONS OF MELTING BEHAVIOR OF POLY(ETHYLENE OXIDE) SINGLE CRYSTALS ON IPB-1 SUBSTRATES WITH DIFFERENT LAMELLAR ORIENTATION[J]. ACTA POLYMERICA SINICA,2012(11):1342-1348.
APA	Chai, Li-guo,Li, Lin,Liao, Qi,&Yan, Shou-ke.(2012).AFM OBSERVATIONS OF MELTING BEHAVIOR OF POLY(ETHYLENE OXIDE) SINGLE CRYSTALS ON IPB-1 SUBSTRATES WITH DIFFERENT LAMELLAR ORIENTATION.ACTA POLYMERICA SINICA(11),1342-1348.
MLA	Chai, Li-guo,et al."AFM OBSERVATIONS OF MELTING BEHAVIOR OF POLY(ETHYLENE OXIDE) SINGLE CRYSTALS ON IPB-1 SUBSTRATES WITH DIFFERENT LAMELLAR ORIENTATION".ACTA POLYMERICA SINICA .11(2012):1342-1348.