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Solvent-induced Morphology of the Binary Mixture of Diblock Copolymer in Thin Film: The Block Length and Composition Dependence of Morphology
Guo, Rui1; Huang, Haiying1; Du, Binyang2; He, Tianbai1
2009-03-05
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume113Issue:9Pages:2712-2724
AbstractA series of binary SB blend samples with various overall volume fraction of PS (Phi(PS)) and different discrete distribution of the block length (denoted as d(PS) or d(PB)) were prepared by mixing various asymmetric poly(styrene)-block-poly(butadiene) (SB) block copolymers with a symmetric SB block copolymer. The influences of the external solvent field, composition, and the block length distribution on the morphologies of the blends in the thin films were investigated by atomic force microscopy (AFM) and transmission electron microscopy (TEM). The experimental results revealed that after solvent annealing, the interface of the blend thin films depended mainly on the cooperative effects of the annealing solvent and the inherently interfacial curvature of the blends. Upon exposure to the saturated vapor of cyclohexane, which has preferential affinity for the PB block, a "threshold" of Phi(PS) (approximate 0.635-0.707) was found. Below such threshold, the influence of the annealing solvent played an important role on the interfacial curvature of the blend thin film. The morphologies of the thin films and the long-range order of the structures were related to the value of d(PS), regardless of the change of d(PB).
DOI10.1021/jp808551j
Indexed BySCI
Language英语
WOS IDWOS:000263732700021
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68422
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.Zhejiang Univ, Dept Polymer Sci & Engn, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Guo, Rui,Huang, Haiying,Du, Binyang,et al. Solvent-induced Morphology of the Binary Mixture of Diblock Copolymer in Thin Film: The Block Length and Composition Dependence of Morphology[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2009,113(9):2712-2724.
APA Guo, Rui,Huang, Haiying,Du, Binyang,&He, Tianbai.(2009).Solvent-induced Morphology of the Binary Mixture of Diblock Copolymer in Thin Film: The Block Length and Composition Dependence of Morphology.JOURNAL OF PHYSICAL CHEMISTRY B,113(9),2712-2724.
MLA Guo, Rui,et al."Solvent-induced Morphology of the Binary Mixture of Diblock Copolymer in Thin Film: The Block Length and Composition Dependence of Morphology".JOURNAL OF PHYSICAL CHEMISTRY B 113.9(2009):2712-2724.
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