Square lamellar structure having phase-separated microdomain in H-shaped block copolymer thin film

doi:10.1002/marc.200800210

ICCAS OpenIR

	Square lamellar structure having phase-separated microdomain in H-shaped block copolymer thin film
	Wei, Yuhan 1; Huang, Weihuan 1; Li, Binyao 1; Han, Yanchun 1; Pan, Caiyuan 2
	2008-08-18
Source Publication	MACROMOLECULAR RAPID COMMUNICATIONS
ISSN	1022-1336
Volume	29 Issue:16 Pages:1378-1384
Abstract	The morphology of a H-shaped block copolymer (poly(ethylene glycol) backbone and polystyrene branches (PS)(2)PEG(PS)(2)) in a thin film has been investigated. A peculiar square lamella that has a phase-separated microdomain at its surface is obtained after spin coating. The experimental temperature plays a critical role in the lamellar formation. The copolymer first self-assembles into square lamellar micelles with an incomplete crystalline core due to the crystallizability of PEG. In the subsequent process of solvent evaporation, phase separation between PS and non-crystalline PEG attached at the chain-folded PEG surface takes place, which results in phase-separated microdomains being formed at the lamellar surface.
Keyword	Block Copolymers H-shaped Incomplete Crystalline Cores Phase Separation Square Lamella Temperature
DOI	10.1002/marc.200800210
Indexed By	SCI
Language	英语
WOS ID	WOS:000258947700005
Publisher	WILEY-V C H VERLAG GMBH
Citation statistics	Cited Times:8[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.iccas.ac.cn/handle/121111/64512
Collection	中国科学院化学研究所
Corresponding Author	Han, Yanchun
Affiliation	1.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
Recommended Citation GB/T 7714	Wei, Yuhan,Huang, Weihuan,Li, Binyao,et al. Square lamellar structure having phase-separated microdomain in H-shaped block copolymer thin film[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2008,29(16):1378-1384.
APA	Wei, Yuhan,Huang, Weihuan,Li, Binyao,Han, Yanchun,&Pan, Caiyuan.(2008).Square lamellar structure having phase-separated microdomain in H-shaped block copolymer thin film.MACROMOLECULAR RAPID COMMUNICATIONS,29(16),1378-1384.
MLA	Wei, Yuhan,et al."Square lamellar structure having phase-separated microdomain in H-shaped block copolymer thin film".MACROMOLECULAR RAPID COMMUNICATIONS 29.16(2008):1378-1384.

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