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Curvature Elasticity of Block Copolymers and the Structure of Emulsified Polymer Blends

Published online by Cambridge University Press:  21 February 2011

Zhen-Gang Wang  and
S. A. Safran
Zhen-Gang Wang
Affiliation:
Corporate Research Science Laboratory, Exxon Research and Engineering Company, Annandale, NJ 08801
S. A. Safran
Affiliation:
Corporate Research Science Laboratory, Exxon Research and Engineering Company, Annandale, NJ 08801
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Abstract

We consider the curvature elastic properties of a layer of block copolymer at the interface between two incompatible homopolymers. We focus on the relation between the relative lengths of the blocks and the elastic properties of the interfacial layer which determines the phase behavior. The curvature elastic moduli K and K, as well as the spontaneous curvature, c0, are obtained. The curvature free energy is used to predict the relative stability of spherical, cylindrical, lamellar, and ordered bicontinuous saddle-shaped structures as functions of concentration and polymer properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 177: Symposium V – Macromolecular Liquids , 1989 , 15
Copyright
Copyright © Materials Research Society 1990

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References

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