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Poly(styrene-b-butadiene-b-styrene) self-organized Ultrathin films

Published online by Cambridge University Press:  10 February 2011

D. Y. Wang ,
F. Q. Liu ,
Y. A. Cao ,
Z. Q. Liu ,
D. F. Shen ,
X. M. Qian ,
J. Q. Song ,
Z. F. Liu ,
Y. B. Bai  and
T. J. Li
...Show all authors
D. Y. Wang
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
F. Q. Liu
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
Y. A. Cao
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
Z. Q. Liu
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
D. F. Shen
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
X. M. Qian
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
J. Q. Song
Affiliation:
Electriphotonic Intelligent Materials Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 P.R. China
Z. F. Liu
Affiliation:
Electriphotonic Intelligent Materials Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 P.R. China
Y. B. Bai
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
T. J. Li
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
X. Y. Tang
Affiliation:
Department of Chemistry, Jilin University, Changchun, 130023 P.R. China
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Abstract

Direct images of the surface morphology of a series of the poly(styrene-b-butadiene-b-styrene) (SBS) ultrathin films have been obtained by atomic force microscopy (AFM). These films were formed under kinetic control. The resulting films consist of 25 nm-diameter spherical structures and/or cylindrical ones. These structures are surprisingly different fi-om alternative-lamellar structures which should be formed under annealed conditions because of the nearly equal length of two blocks of SBS. In nonselective solvents, the surface of the cast solution layer induces the copolymers to self-organize into micelle consisting of a polystyrene (PS) core and a polybutadiene (PB) shell in order to decrease film surface energy. The final structures depend on the property of the solvent used and filn-forming condition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 501: Symposium FF – Surface Controlled Nanoscale Materials for High-Added… , 1997 , 215
Copyright
Copyright © Materials Research Society 1998

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References

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