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Charge and Size Polydispersity Effects on the Scattering Properties and the High-Frequency Elasticity of Colloids

Published online by Cambridge University Press:  21 February 2011

Bruno D'Aguanno ,
Rudolf Klein  and
Norman J. Wagner
Bruno D'Aguanno
Affiliation:
Fakultät für Physik, Universität Konstanz, D-7750 Konstanz B.R.D.
Rudolf Klein
Affiliation:
Fakultät für Physik, Universität Konstanz, D-7750 Konstanz B.R.D.
Norman J. Wagner
Affiliation:
Fakultät für Physik, Universität Konstanz, D-7750 Konstanz B.R.D.
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Abstract

Polydispersity in charge and in size of colloidal particles strongly influences the static light scattering < I(k) >. These effects are calculated by solving the Ornstein-Zernike integral equation together with the thermodynamically consistent Rogers-Young closure for a multicomponent mixture of up to 10 components. The results for < I(k) > for polydisperse systems show significant differences from results obtained by treating the system as an effective monodisperse one. For <I(k) > a large increase is found at small k as well as a shift in the main peak. Finally, using the above results, high-frequency elastic moduli are predicted for a binary mixture.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 177: Symposium V – Macromolecular Liquids , 1989 , 219
Copyright
Copyright © Materials Research Society 1990

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References

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