INORGANIC ENVIRONMENT DERIVED FROM THE SOL-GEL ROUTE DOES NOT IMPROVETHE THERMAL OR OXIDATIVE STABILITY OF 2,4-DINITROANILINE IN COATINGS

The relative thermal and oxidative stabilities of N-[3-(triethoxysilyl )propyl]2,4-dinitroaniline (1), incorporated covalently into sol-gel c oatings and of 2,4-dinitroaniline, incorporated non-covalently into si milar coatings, showed no significant difference in relative thermal s tability in sol-gel derived films under a variety of conditions: with no overcoat of SiO2; with a dense sol-gel-derived overcoat Of SiO2; wi th a porous overcoat Of SiO2; over a porous, high surface area coating of SiO2; and copolymerized with or physically incorporated into dense and porous SiO2 films derived from tetraethylorthosilicate.