Spectromechanical analysis of the structure and oxidation of PMR thermoset thermally-stable resins

Autor: J. Berriot, E. Lafontaine, N. Régnier, B. Mortaigne
Rok vydání: 2001
Předmět:
Zdroj: Polymer Degradation and Stability. 73:485-490
ISSN: 0141-3910
DOI: 10.1016/s0141-3910(01)00136-7
Popis: The long-term ageing of high temperature polyimide thermoset polymers such as the commercial PMR15 resin and model molecules which compose the PMR15 chemical structure, was studied. The amount of each oligomer directly influences the physico-chemical and mechanical properties. The aim was to understand the oxidation mechanisms of these thermoset polyimide resins and the consequences for the mechanical properties. Nuclear magnetic resonance analysis has been associated with the thermo-mechanical transitions.
Databáze: OpenAIRE