ICCAS OpenIR
Polymer Crystallization Influenced by Initial Orientation of Cylindrical Diblock Copolymers in Thin Films
Yang, Ping; Han, Yanchun1
2008-10-01
Source PublicationMACROMOLECULAR RAPID COMMUNICATIONS
ISSN1022-1336
Volume29Issue:19Pages:1614-1619
AbstractThe effect of the initial states (disordered perpendicular cylinder structure vs. parallel cylinder structure) on the crystallization of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) thin films during cyclohexane annealing was investigated. The cylindrical domains perpendicular or parallel to the surface were obtained by controlling the film thickness. During solvent annealing, for the film with the perpendicular cylinders, the ordering degree of cylinders was increased. The enthalpic increase is large enough for the forming of square-shaped crystals, and subsequently the square-shaped single crystals surrounded by the ordered hexagonally packed perpendicular cylinders evolved to the dendrite ones. For the film with the parallel cylinders, the parallel cylinders were translated to the perpendicular ones. The increased enthalpy was not large enough for the formation of square-shaped single crystals. Instead, the dendrite-like crystals started at the edge of terraces.
KeywordBlock Copolymers Break-out Crystallization Initial Orientation Solvent Annealing
DOI10.1002/marc.200800285
Indexed BySCI
Language英语
WOS IDWOS:000260714300009
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63288
Collection中国科学院化学研究所
Corresponding AuthorHan, Yanchun
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Yang, Ping,Han, Yanchun. Polymer Crystallization Influenced by Initial Orientation of Cylindrical Diblock Copolymers in Thin Films[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2008,29(19):1614-1619.
APA Yang, Ping,&Han, Yanchun.(2008).Polymer Crystallization Influenced by Initial Orientation of Cylindrical Diblock Copolymers in Thin Films.MACROMOLECULAR RAPID COMMUNICATIONS,29(19),1614-1619.
MLA Yang, Ping,et al."Polymer Crystallization Influenced by Initial Orientation of Cylindrical Diblock Copolymers in Thin Films".MACROMOLECULAR RAPID COMMUNICATIONS 29.19(2008):1614-1619.
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