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Characterization of the Products of the Pyrolysis of Inorganic Polymers Used as Dispersants

Published online by Cambridge University Press:  25 February 2011

William D. Samuels ,
Gregory J. Exarhos ,
Sarah D. Burton ,
Barbara J. Tarasevich  and
Daniel J. Stasko
William D. Samuels
Affiliation:
Pacific Northwest Laboratory, Richland, WA 99352
Gregory J. Exarhos
Affiliation:
Student Trainee fromKent State University
Daniel J. Stasko
Affiliation:
Student Trainee fromKent State University
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Abstract

A series of alumina particles coated with inorganic polymers, that have utility as preceramic dispersants, have been pyrolyzed and the products of the pyrolysis studied to help determine the possible decomposition routes. The inorganic polymers, bis(amino)polyphosphazenes and siloxanes, appear to undergo loss of the organic sidechains via a nucleophilic process which would incorporate inorganic backbone into the alumina matrix. The bis(alkoxy)polyphosphazenes decompose by nucleophilic attachment but also exhibit polymer loss by formation of cyclic oligomers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 249: Symposium Q – Synthesis and Processing of Ceramics: Scientific Issues , 1991 , 371
Copyright
Copyright © Materials Research Society 1992

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References

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