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Freeze drying for morphological control of inter-penetrating polymer networksThe intrinsic brittleness of BMI resins can be reduced through the creation of an interpenetrating network (IPN) of BMI with a reactive-encapped thermoplastic, such as the presently considered polyimidesulfone, PISO2. The PISO2 and BMI were dissolved in a common solvent, which was then removed from the constituents by freeze drying; in an alternative method, an IPN was formed through dissolution of the constituent in a common solvent with either high or low melting point, followed by evaporative removal of the solvent. The effectiveness of the freeze-drying approach for morphological control is evaluated.
Document ID
19900063159
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hansen, Marion G.
(Tennessee, University Knoxville, United States)
Pater, Ruth H.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: International SAMPE Symposium and Exhibition
Location: Anaheim, CA
Country: United States
Start Date: April 2, 1990
End Date: April 5, 1990
Accession Number
90A50214
Distribution Limits
Public
Copyright
Other

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