Formation of polyimide from benzophenonetetracarboxylic acid diester complexes with different diamines. 4. Gas-chromatographic study of thermal cyclization of complexes

Autor: Artem'eva, V. N., Chupans, P. I., Kukarkin, E. N., Kudryavtsev, V. V., Koton, M. M.
Zdroj: Russian Chemical Bulletin; May 1991, Vol. 40 Issue: 5 p892-897, 6p
Abstrakt: Thermal cyclization of H complexes is characterized by one rate constant which significantly distinguishes it from thermal cyclization of polyamido acids. The degree of completion of thermal cyclization of the H complex and its rate are determined by diffusion processes related to the structure of the H complex and mobility (softening) of the system during thermal cyclization.
Databáze: Supplemental Index