The endo-structure tetracarboxylic dianhydride was a crystal and could be divided into meso and racemic isomers. However, the exo-structure tetracarboxylic dianhydride was a highly viscous liquid ...

For the tetracarboxylic acids considered here this results in two orientations of intermolecular bonding with the molecular backbone axes, either parallel or non-parallel at 60°, as shown in Fig ...

Dianhydride curing agents, such as benzophenone tetracarboxylic dianhydride (BTDA®), enhance high-temperature performance in epoxy formulations. This article will examine sample formulations for ...

Polyimide resins are popular for manufacturing microelectronic equipment for a variety of electronic applications. These polymers have superior dielectric properties, provide thermal stability and ...