ICCAS OpenIR
Effect of the nature of annealing solvent on the morphology of diblock copolymer blend thin films
Guo, Rui1; Huang, Haiying1; Chen, Yongzhong1; Gong, Yumei1; Du, Binyang2; He, Tianbai1
2008-02-12
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume41Issue:3Pages:890-900
AbstractThe morphologies and structures for the thin film of blend systems consisting of two asymmetric polystyrene-block-polybutadiene (SB) diblock copolymers induced by annealing in the vapor of different solvents, namely, cyclohexane, benzene, and heptane, which have different selectivity or preferential affinity for a certain block, were investigated by tapping mode atomic force microscopy (AFM) and transmission electron microscopy (TEM). The results revealed that even a slight preferential affinity of good solvent for one block would strongly alter the morphology of the blend thin film. An interesting structure of so-called "spheres-between-cylinders" ("sph-b-cyl") was obtained when annealing the blend thin film with a weight fraction ratio of 50/50 of the two components in the saturated vapor of cyclohexane, which is a good solvent for]:PB and a (near) E) solvent for PS at 34.5 degrees C. The influence of the kinetic factors, such as the annealing time and vapor pressure of the solvent, together with the factors of the blend composition and the film thickness, on the morphology forming in the blend thin film systems was also investigated. Blending the block copolymers together with the solvent treatments is proved to be an effective way to control the structure and morphology of the thin films.
DOI10.1021/ma701979q
Indexed BySCI
Language英语
WOS IDWOS:000252944900056
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65080
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, Peoples R China
Recommended Citation
GB/T 7714
Guo, Rui,Huang, Haiying,Chen, Yongzhong,et al. Effect of the nature of annealing solvent on the morphology of diblock copolymer blend thin films[J]. MACROMOLECULES,2008,41(3):890-900.
APA Guo, Rui,Huang, Haiying,Chen, Yongzhong,Gong, Yumei,Du, Binyang,&He, Tianbai.(2008).Effect of the nature of annealing solvent on the morphology of diblock copolymer blend thin films.MACROMOLECULES,41(3),890-900.
MLA Guo, Rui,et al."Effect of the nature of annealing solvent on the morphology of diblock copolymer blend thin films".MACROMOLECULES 41.3(2008):890-900.
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