Surface effect on the body-centered-cubic phase of diblock copolymers

doi:10.1021/ma049310i

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	Surface effect on the body-centered-cubic phase of diblock copolymers
	Tan, HG ; Yan, DD ; Shi, AC
刊名	MACROMOLECULES
	2004-12-14
卷号	37 期号:25 页码:9646-9653
ISSN号	0024-9297
DOI	10.1021/ma049310i
英文摘要	In the weak segregation limit, we investigate the surface-induced structures in the body-centered-cubic phase of diblock copolymers. Employing the Landau-Brazovskii mean field theory, we obtain the extent of surface-induced region as a function of temperature and surface field strength. At strong surface field strengthes, the lamellar and cylindrical characters are much more profound, and the surface-induced structure persists to a larger extent. A "phase diagram" of surface reconstructions is constructed, which describes the surface-induced structure. These results demonstrate that the coupling between the local average excess polymer concentration and the surface leads to lamella-like and cylinder-like structures close to the surface. Some of our theoretical results are in agreement with relevant experimental results. Our predictions about these interesting surface-induced structures should be observable in experiments under suitable conditions.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000225654100044
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/55647]
专题	中国科学院化学研究所
通讯作者	Yan, DD
作者单位	1.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China 2.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
推荐引用方式 GB/T 7714	Tan, HG,Yan, DD,Shi, AC. Surface effect on the body-centered-cubic phase of diblock copolymers[J]. MACROMOLECULES,2004,37(25):9646-9653.
APA	Tan, HG,Yan, DD,&Shi, AC.(2004).Surface effect on the body-centered-cubic phase of diblock copolymers.MACROMOLECULES,37(25),9646-9653.
MLA	Tan, HG,et al."Surface effect on the body-centered-cubic phase of diblock copolymers".MACROMOLECULES 37.25(2004):9646-9653.