ICCAS OpenIR
Fabrication of fibril like aggregates by self-assembly of block copolymer mixtures via interpolymer hydrogen bonding
Gao, Junpeng; Wei, Yuhan; Li, Binyao; Han, Yanchun
2008-04-29
Source PublicationPOLYMER
ISSN0032-3861
Volume49Issue:9Pages:2354-2361
AbstractThis paper describes the formation of fibril like aggregates from the self-assembly of block copolymer mixture (polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) and polystyrene-b-poly(acrylic acid) (PS-b-PAA)) via interpolymer hydrogen bonding in nonselective solvent. The hydrogen bonding between P4VP and PAA in chloroform leads to the formation of complex. When all the pyridine units in P4VP were all hydrogen bonded to acrylic acid in PAA, the formed complex is insoluble, resulting in the formation of spherical micellar aggregates and nanorods. However, two kinds of supramolecules with insoluble or soluble complex are formed in the solution when PS-b-P4VP and PS-b-PAA are mixed with equal mole ratio. The fibril like aggregates can be formed from the self-assembly of supramolecule with soluble complex during spin-coating process. The effects of evaporation rate of solvent and solution concentrations on the formation of fibril like aggregates were investigated. The results prove that the kinetic factors play an important role in the formation of the fibril like aggregates. (C) 2008 Elsevier Ltd. All rights reserved.
KeywordBlock Copolymers Hydrogen-bonded Complexes Self-assembly
DOI10.1016/j.polymer.2008.02.051
Indexed BySCI
Language英语
WOS IDWOS:000255923200021
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63328
Collection中国科学院化学研究所
Corresponding AuthorHan, Yanchun
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Gao, Junpeng,Wei, Yuhan,Li, Binyao,et al. Fabrication of fibril like aggregates by self-assembly of block copolymer mixtures via interpolymer hydrogen bonding[J]. POLYMER,2008,49(9):2354-2361.
APA Gao, Junpeng,Wei, Yuhan,Li, Binyao,&Han, Yanchun.(2008).Fabrication of fibril like aggregates by self-assembly of block copolymer mixtures via interpolymer hydrogen bonding.POLYMER,49(9),2354-2361.
MLA Gao, Junpeng,et al."Fabrication of fibril like aggregates by self-assembly of block copolymer mixtures via interpolymer hydrogen bonding".POLYMER 49.9(2008):2354-2361.
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