Autor: |
Artem'eva, V. N., Boyarchuk, Yu. M., Smirnova, E. A., Kukarkin, E. N., Kudryavtsev, V. V., Koton, M. M. |
Zdroj: |
Russian Chemical Bulletin; March 1990, Vol. 39 Issue: 3 p460-463, 4p |
Abstrakt: |
H-bond complexes of benzophenonetetracarboxylic acid dimethyl ester with 2,6-diaminopyridine (BZPE·DAP) have a dimeric structure in which one of the amino groups of the diaminopyridine participates in the formation of an H bond and the other does not form strong intermolecular bonds. During thermal imidization, the relative reactivity of the free amino group is lower than the reactivity of the group bound in the complex. In the BZPE·DAP system, ~10% of the free amino groups remain after completion of imidization and they disappear at a high temperature. It is hypothesized that they can participate in the formation of interchain imide bonds. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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