Copolyimides modified versions of LaRC(TM)-IA thermoplastic polyimide formulated by incorporating moieties of 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) and, alternatively, isophthaloyldiphthalic anhydride (IDPA) into LaRC(TM)-IA polymer backbones. Exhibit higher glass-transition temperatures and retain greater fractions of lower-temperature shear moduli at higher temperatures. Copolyimides spun into fibers or used as adhesives, molding powders, or matrix resins in many applications, especially in fabrication of strong, lightweight structural components of aircraft.
LaRC(TM)-IA Copolyimides
NASA Tech Briefs ; 19 , 5
1995-05-01
Miscellaneous
No indication
English
Online Contents | 1995
Copolyimides With Flexibilizing Groups
NTRS | 1987
|LARC Wind Tunnel Test Capabilities
NTIS | 2021
|Modified LaRC(TM)-IA Polyimides
NTRS | 1994
|NTRS | 1992
|