| 摘要 |
<p>Polyamideimides are prepared by first reacting a diamine, preferably an aromatic diamine, with a carboxy anhydride such as trimellitic anhydride and a dianhydride such as bisphenol A dianhydride; and then reacting mixtures of the resulting prepolymers and dicarboxylic acids, or functional derivatives thereof, with a diisocyanate or diamine, preferably an aromatic diisocyanate.</p> |
