ICCAS OpenIR
Square lamellar structure having phase-separated microdomain in H-shaped block copolymer thin film
Wei, Yuhan1; Huang, Weihuan1; Li, Binyao1; Han, Yanchun1; Pan, Caiyuan2
2008-08-18
Source PublicationMACROMOLECULAR RAPID COMMUNICATIONS
ISSN1022-1336
Volume29Issue:16Pages:1378-1384
AbstractThe 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.
KeywordBlock Copolymers H-shaped Incomplete Crystalline Cores Phase Separation Square Lamella Temperature
DOI10.1002/marc.200800210
Indexed BySCI
Language英语
WOS IDWOS:000258947700005
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64512
Collection中国科学院化学研究所
Corresponding AuthorHan, Yanchun
Affiliation1.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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