ICCAS OpenIR
The Effect of the Preferential Affinity of the Solvent on the Microstructure of Solution-Cast Block Copolymer Thin Films
Li, Yuhu1; Huang, Haiying1; He, Tianbai1; Gong, Yumei2
2010-01-28
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume114Issue:3Pages:1264-1270
AbstractWe have Studied the microstructures of the solvent-cast films of polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) diblock copolymer with PMMA cylinder-forming composition. The casting solvents, 1,1,2-trichloroethane (TCE), toluene (Tol) and their binary mixtures, were controlled to evaporate at a certain rate R approximate to 0.01 mL/h, and file effect of the preferential affinity of the solvents for a certain block P2VPng microstructures is investigated. 1,1,2-Trichloroethane and toluene, with similar volatility, are good solvents for both PS and PMMA blocks but having opposite preferential affinity for each block (TCE has preferential affinity for the minority PMMA block and Tol has preferential affinity for the majority PS block), and the preferential affinity of the solvents is modulated by mixing the two solvents. As the preferential affinity of the solvents for the majority PS block increases,,I series of microstructures including perforated lamella with ringlike morphologies, PMMA cylinders, PMMA spheres, and PMMA cylinders covered with a layer of PS microdomain have been observed. The results are discussed in view of the effective volume fraction of each block induced by the solvent preferential affinity and the special mechanical strain field brought by the solvent evaporation.
DOI10.1021/jp908852u
Indexed BySCI
Language英语
WOS IDWOS:000273672300006
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70634
Collection中国科学院化学研究所
Corresponding AuthorHe, Tianbai
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Dalian Polytech Univ, Sch Chem & Mat, Dalian 116034, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuhu,Huang, Haiying,He, Tianbai,et al. The Effect of the Preferential Affinity of the Solvent on the Microstructure of Solution-Cast Block Copolymer Thin Films[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2010,114(3):1264-1270.
APA Li, Yuhu,Huang, Haiying,He, Tianbai,&Gong, Yumei.(2010).The Effect of the Preferential Affinity of the Solvent on the Microstructure of Solution-Cast Block Copolymer Thin Films.JOURNAL OF PHYSICAL CHEMISTRY B,114(3),1264-1270.
MLA Li, Yuhu,et al."The Effect of the Preferential Affinity of the Solvent on the Microstructure of Solution-Cast Block Copolymer Thin Films".JOURNAL OF PHYSICAL CHEMISTRY B 114.3(2010):1264-1270.
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