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Mechanically Induced Silica-Siloxane Mixtures. Structure of the Adsorbed Layer and Properties of the Network Structure

Published online by Cambridge University Press:  22 February 2011

J.P. Cohen—addad
J.P. Cohen—addad*
Affiliation:
Laboratoire de Spectrométrie Physique associé au CNRS, Université Joseph Fourier, Grenoble I, B.P. 87 – 38402 St Martin d'Héres Cedex, France
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Abstract

Properties specific to silica—siloxane mixtures are analysed and discussed. The effect of polymer adsorption is interpreted from the Gaussian statistics of chains: the amount of adsorbed polymer Qr is proportional to the square root of the chain molecular weight. The kinetics of adsorption is described as a process of surface saturation. It is discussed as a function of the silica concentration. The effect of swelling of the mixtures is interpreted within the statistical framework proposed by Flory for ordinary gels.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 171: Symposium O – Polymer Based Molecular Composites , 1989 , 365
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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