The monomeric reactants approach was used to fabricate addition-type polyimide/graphite fiber composites with improved mechanical properties and thermal stability characteristics over those of composites derived from addition-type amide acid prepolymers. A screening study of 24 different monomer combinations was performed. The results of a more extensive investigation of a selected number of monomer combinations showed that the combination providing the best thermomechanical properties was 5-norbornene-2.3-dicarboxylic acid monomethyl ester/4,4(')-methylenedianiline/3,3(')4,4(')-benzophenonetetracarboxylic acid dimethyl ester at a molar ratio of 2/3.09/2.09
The effects were investigated of partial substitution of tetraamine crosslinking agents for diamine ...
Many of the emerging applications of polymers on space vehicles require materials with outstanding t...
Fiber reinforced PMR polyimides are finding increased acceptance as engineering materials for high p...
The monomeric reactants approach was used to fabricate addition-type polyimide/graphite fiber compos...
A method for preparing thermally stable resin-fiber-reinforced composites by using solutions of appr...
Studies performed to demonstrate the feasibility of using the polymerization of monomer reactants (P...
Basic studies that were performed using model compounds to elucidate the polymerization mechanism of...
Studies conducted with addition-type polyimides are reviewed with emphasis on the development of the...
Studies were performed to investigate the effect of substituting a hexafluoro isopropyl idene connec...
Addition curing polyimides, prepared from noncoplanar 2,2'-bis(trifluoromethyl) 4,4' diaminobiphenyl...
Studies were conducted to improve the thermo-oxidative stability (TOS) of PMR type polyimides by the...
Two highly promising approaches to yield autoclavable addition-type polyimides were identified and e...
Polyimide resins suitable for use as composite matrix materials are formed by copolymerization of ma...
By varying the stoichiometry of the reactants in the preparation of PMR polyimide resin, changes occ...
In situ polymerization of monomers was used to prepare graphite-fiber-reinforced polyphenylquinoxali...
The effects were investigated of partial substitution of tetraamine crosslinking agents for diamine ...
Many of the emerging applications of polymers on space vehicles require materials with outstanding t...
Fiber reinforced PMR polyimides are finding increased acceptance as engineering materials for high p...
The monomeric reactants approach was used to fabricate addition-type polyimide/graphite fiber compos...
A method for preparing thermally stable resin-fiber-reinforced composites by using solutions of appr...
Studies performed to demonstrate the feasibility of using the polymerization of monomer reactants (P...
Basic studies that were performed using model compounds to elucidate the polymerization mechanism of...
Studies conducted with addition-type polyimides are reviewed with emphasis on the development of the...
Studies were performed to investigate the effect of substituting a hexafluoro isopropyl idene connec...
Addition curing polyimides, prepared from noncoplanar 2,2'-bis(trifluoromethyl) 4,4' diaminobiphenyl...
Studies were conducted to improve the thermo-oxidative stability (TOS) of PMR type polyimides by the...
Two highly promising approaches to yield autoclavable addition-type polyimides were identified and e...
Polyimide resins suitable for use as composite matrix materials are formed by copolymerization of ma...
By varying the stoichiometry of the reactants in the preparation of PMR polyimide resin, changes occ...
In situ polymerization of monomers was used to prepare graphite-fiber-reinforced polyphenylquinoxali...
The effects were investigated of partial substitution of tetraamine crosslinking agents for diamine ...
Many of the emerging applications of polymers on space vehicles require materials with outstanding t...
Fiber reinforced PMR polyimides are finding increased acceptance as engineering materials for high p...
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