A new aromatic diamine bearing ether and pendant 9(10H)-anthrone groups, 10,10-bis[4-(4-aminophenoxy)phenyl]-9(10H)-anthrone was reacted with various aromatic dianhydrides to yield the corresponding cardo polyimides via the poly(amic acid) (PAA) precursors and thermal or chemical imidization. The PAAs were produced with moderate to high inherent viscosities of 0.91–1.53 dL/g. All the PAAs could be cast from DMAc solution and thermally converted into transparent, flexible and tough polyimide films with tensile strength of 79.6–115.2 MPa, tensile modulus of 1.97–2.48 GPa, and elongation at break of 10.8–21.7%. These polyimides were predominantly amorphous, and displayed excellent thermal stability with glass-transition temperature of 290–359 °C, 10% weight loss temperature of 522–566 °C, and the residue of 59–65% at 800 °C in nitrogen. Most of the polyimides obtained by chemical cyclodehydration procedure were found to be soluble in NMP, DMF and mcresol at room temperature.

一种新的带有醚和侧基9（10H）-蒽酮，10,10-双[4-（4-氨基苯氧基）苯基] -9（10H的芳族二胺的侧基蒽酮与各种芳香族二酐反应，通过聚（酰胺酸）（PAA）前体和热或化学酰亚胺化反应生成相应的心脏聚酰亚胺。生产的PAA具有0.91–1.53 dL / g的中度至高固有粘度。所有的PAA都可以用DMAc溶液浇铸，然后热转变为透明，柔性和坚韧的聚酰亚胺薄膜，其拉伸强度为79.6–115.2 MPa，拉伸模量为1.97–2.48 GPa，断裂伸长率为10.8–21.7％。这些聚酰亚胺主要是无定形的，在290-359°C的玻璃化转变温度，522-566°C的10％失重温度和800°C的氮气中59-65％的残留物中表现出出色的热稳定性。发现通过化学环脱水程序获得的大多数聚酰亚胺可溶于NMP，