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Structure property behavior of polyimide siloxane segmented copolymersProcedures were developed for preparing soluble fully imidized polyimide-polydimethyl siloxane segmented copolymers of wide ranging compositions. At low siloxane levels, the materails behave as modified polyimides. At higher concentrations, the materials are analogous to thermoplastic elastomers. Characterization by dynamic mechanical and thermal analysis methods will be reported along with an assesment of the bulk mechanical properties and the surface behavior. The surface behavior is particularly interesting since the materials can be tailored to have siloxane surfaces even at rather low siloxane contents. This influences a number of properties such as the coefficient of friction and, importanly, the degradation of these materials under aggressive oxygen environments (e.g., atomic oxygen, oxygen plasma).
Document ID
19880025943
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Arnold, C. A.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Summers, J. D.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Bott, R. H.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Taylor, L. T.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Ward, T. C.
(Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: Advanced materials technology ''87
Location: Anaheim, CA
Country: United States
Start Date: April 6, 1987
End Date: April 9, 1987
Accession Number
88A13170
Distribution Limits
Public
Copyright
Other

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