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Characterization of the Polymer-Filler Interface in γ-Irradiated Silica-Reinforced Polysiloxane Composites

Published online by Cambridge University Press:  01 February 2011

Allen T. Chien ,
Bryan Balazs  and
James LeMay
Allen T. Chien
Affiliation:
Chemistry and Materials Science Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94551
Bryan Balazs
Affiliation:
Chemistry and Materials Science Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94551
James LeMay
Affiliation:
Chemistry and Materials Science Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94551
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Abstract

The changes in hydrogen bonding at the interface of silica-reinforced polysiloxane composites due to aging in gamma radiation environments were examined in this study. Solvent swelling was utilized to determine the individual contributions of the matrix polymer and polymer-filler interactions to the overall crosslink density. The results show how the polymer-filler hydrogen bonding dominates the overall crosslink density of the material. Air irradiated samples displayed decreased hydrogen bonding at the polymer-filler interface, while vacuum irradiation revealed the opposite effect.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 629: Symposium FF – Interfaces, Adhesion and Processing in Polymer Systems , 2000 , FF5.14
Copyright
Copyright © Materials Research Society 2000

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References

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