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The In-Situ Generation of Silica Reinforcement in Modified Polydimethylsiloxane Elastomers

Published online by Cambridge University Press:  10 February 2011

S. Prabakar ,
S. E. Bates ,
E. P. Black ,
T. A. Ulibarri ,
D. W. Schaefer ,
G. Beaucage  and
R. A. Assink
S. Prabakar
Affiliation:
Advanced Materials Laboratory, University of New Mexico, Albuquerque, NM 87106
S. E. Bates
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-1407.
E. P. Black
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-1407.
T. A. Ulibarri
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-1407.
D. W. Schaefer
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-1407.
G. Beaucage
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-1407.
R. A. Assink
Affiliation:
Advanced Materials Laboratory, University of New Mexico, Albuquerque, NM 87106 Sandia National Laboratories, Albuquerque, NM 87185-1407.
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Abstract

The structure and properties of a series of modified polydimethylsiloxane (PDMS) elastomers reinforced by in situ generated silica particles were investigated. The PDMS elastomer was modified by systematically varying the molecular weight between reactive groups incorporated into the backbone. Tetraethoxysilane (TEOS) and partial hydrolyzate of TEOS were used to generate silica particles. The chemistry and phase structure of the materials were investigated by 29Si magic angle spinning nuclear magnetic resonance (NMR) spectroscopy and swelling experiments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 469
Copyright
Copyright © Materials Research Society 1996

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References

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