Crystallization of weakly segregated poly(styrene-b-epsilon-caprolactone) diblock copolymer in thin films

	Crystallization of weakly segregated poly(styrene-b-epsilon-caprolactone) diblock copolymer in thin films
	Zhang FJ ; Huang HY ; Hu ZJ ; Chen YZ ; He TB
刊名	langmuir
	2003
卷号	19 期号:24 页码:10100-10108
关键词	ATOMIC-FORCE MICROSCOPY ABC TRIBLOCK COPOLYMERS BLOCK-COPOLYMERS POLYMER CRYSTALLIZATION CONFINED CRYSTALLIZATION MICROPHASE SEPARATION POLY(ETHYLENE OXIDE) CRYSTAL ORIENTATIONS SELF-ORGANIZATION POLYSTYRENE BLOCK
ISSN号	0743-7463
通讯作者	zhang fj
中文摘要	the surface morphology and crystallization behavior of a weakly segregated symmetric diblock copolymer, poly(styrene-b-6-caprolactone) (ps-b-pcl), in thin films were investigated by optical microscopy, x-ray photoelectron spectroscopy, and atomic force microscopy (afm). when the samples were annealed in the molten state, surface-induced ordering, that is, relief structures with uniform thickness or droplets in the adsorbed monolayer, were observed depending on the annealing temperature. the polar pcl block preferred to wet the surface of a silicon wafer, while the ps block wet the air interface. this asymmetric wetting behavior led to the adsorbed monolayer with a pcl block layer having a thickness of around 4.0 nm. the crystallization of pcl blocks could overwhelm the microphase-separated structure because of the weak segregation. in situ observation of crystal growth indicated that the nucleation process preferred to occur at the edge of the thick parts of the film, that is, the relief structures or droplets. the crystal growth rate was presented by the time dependence of the distance between the tip of crystal clusters and the edge. at 22 and 17 degreesc, the average crystal growth rates were 55 +/- 10 and 18 +/- 4 nm/min, respectively.
收录类别	SCI
语种	英语
WOS记录号	WOS:000186694500019
公开日期	2010-09-13
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/17193]
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	Zhang FJ,Huang HY,Hu ZJ,et al. Crystallization of weakly segregated poly(styrene-b-epsilon-caprolactone) diblock copolymer in thin films[J]. langmuir,2003,19(24):10100-10108.
APA	Zhang FJ,Huang HY,Hu ZJ,Chen YZ,&He TB.(2003).Crystallization of weakly segregated poly(styrene-b-epsilon-caprolactone) diblock copolymer in thin films.langmuir,19(24),10100-10108.
MLA	Zhang FJ,et al."Crystallization of weakly segregated poly(styrene-b-epsilon-caprolactone) diblock copolymer in thin films".langmuir 19.24(2003):10100-10108.