In situ observation of melting and crystallization behaviors of poly(E >-caprolactone) ultra-thin films by AFM technique

	In situ observation of melting and crystallization behaviors of poly(E >-caprolactone) ultra-thin films by AFM technique
	Qiao CD ; Jiang SC ; Ji XL ; An LJ
刊名	chinese journal of polymer science
	2013
卷号	31 期号:9 页码:1321-1328
关键词	ATOMIC-FORCE MICROSCOPY POLY(ETHYLENE OXIDE) POLYMER CRYSTALLIZATION CRYSTAL MORPHOLOGY POLY(EPSILON-CAPROLACTONE) FILMS MOLECULAR-WEIGHT BLEND FILMS GROWTH POLYETHYLENE THICKNESS
ISSN号	0256-7679
通讯作者	qiao cd
中文摘要	the melting and crystallization behaviors of poly(e >-caprolactone) (pcl) ultra-thin films with thickness from 15 nm to 8 nm were studied by afm technique equipped with a hot-stage in real-time. it was found that melting can erase the spherulitic structure for polymer film with high thickness. however, annealing above the melting point can not completely erase the tree-like structure for the thinner polymer film. generally, the structure formation of thin polymer films of pcl is controlled not only by melting and crystallization but also by dewetting during thermal annealing procedures, and dewetting predominates in the structure formation of ultra-thin films. however, the presence of tree-like morphology at 75 a degrees c may be due to the strong interaction between pcl and mica surface, which may stick the pcl chains onto the mica surface during thermal annealing process. moreover, the growth of the dendrites was investigated and it was found that crystallization is followed from a dewetted sample, and the branches did not grow with the stems. the crystallization of polymer in the ultrathin films is a diffusion-controlled process. both melting and crystallization behaviors of pcl in thin films are influenced by film thickness.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000322453700016
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49658]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Qiao CD,Jiang SC,Ji XL,et al. In situ observation of melting and crystallization behaviors of poly(E >-caprolactone) ultra-thin films by AFM technique[J]. chinese journal of polymer science,2013,31(9):1321-1328.
APA	Qiao CD,Jiang SC,Ji XL,&An LJ.(2013).In situ observation of melting and crystallization behaviors of poly(E >-caprolactone) ultra-thin films by AFM technique.chinese journal of polymer science,31(9),1321-1328.
MLA	Qiao CD,et al."In situ observation of melting and crystallization behaviors of poly(E >-caprolactone) ultra-thin films by AFM technique".chinese journal of polymer science 31.9(2013):1321-1328.