NASA NTRS · 19900000283
Tough, Microcracking-Resistant, High-Temperature Polymer
Abstract
Simultaneous synthesis from thermosetting and thermoplastic components yields polyimide with outstanding properties. Involves process in which one polymer cross-linked in immediate presence of other, undergoing simultaneous linear chain extension. New material, LaRC-RP40 synthesized from high-temperature thermosetting imide prepolymer and from thermoplastic monomer. Three significantly improved properties: toughness, resistance to microcracking, and glass-transition temperature. Shows promise as high-temperature matrix resin for variety of components of aircraft engines and for use in other aerospace structures.
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Pater, Ruth H., Razon, Pert, Smith, Ricky, Working, Dennis, Chang, Alice, Gerber, Margaret. 1990-06-01. Tough, Microcracking-Resistant, High-Temperature Polymer. https://ntrs.nasa.gov/citations/19900000283
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