| 摘要 |
<p>PURPOSE:To provide a new imide ring-containing diamine which is useful as a monomer component for heat-resistant polymer, particularly polyimide, polyamideimide and as a curing agent for epoxy resin to improve its heat resistance as well as compatibility with the resin. CONSTITUTION:The imide ring-containing diamine of formula I (R is a tetravalent group selected from alkyl of 2 or more carbon atoms, cyclic alkyl, monocyclic aromatic, condensed polycyclic aromatic, and noncondensed polycyclic aromatic groups in which the aromatic rings are connected directly or through a bridge to each other; R' is 1 to 10C alkyl; the amino groups directly connecting to the aromatic rings are in the 3 or 4-position), for example, a diamine resulting from the reaction of alpha-(3-aminophenyl)ethylamine with pyromellitic dianhydride. The compound of formula I is obtained by effecting the reaction between a tetracarboxylic dianhydride of formula II and an alpha-(aminophenyl)alkylamine of formula III in an organic polar solvent. This process enables the production of the objective compound to be used as a starting substance for heat-resistant polymers from an inexpensive diamine of a specific structure.</p> |
