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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*
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
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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