Abstract 10,10-Bis[4-(4-aminophenoxy)-3-methylphenyl]-9(10H)-anthrone, as a novel aromatic diamine, was synthesized from anthrone by three-step process. A series of polyimides containing methyl substituents and 9(10H)-anthrone pendant groups was prepared from this diamine with various aromatic dianhydrides via the poly(amic acid) (PAA) precursors and subsequent thermal or chemical imidization procedure. Inherent viscosities of PAAs are between 0.87 and 1.58 dL/g, and the corresponding polyimides have the weight-average molecular weight and number-average molecular weight in the range of 49,400–64,200 and 28,700–37,700, respectively. Most of the polyimides obtained through the chemical cyclodehydration method are soluble in NMP, DMF, DMAc, Py and m-cresol at room temperature. These polyimides have glass transition temperatures of 289–313 °C, 10% weight loss temperatures of 484–524 °C, char yields of 55–63% at 800 °C, and temperature at the maximum-rate degradation of 560–584 °C in nitrogen, respectively. The polyimide films obtained through the thermal imidization have tensile strength of 76.43–119.74 MPa, elongation at break of 6.93–12.33%, and tensile modulus of 1.91–2.38 GPa. Graphical Abstract

中文翻译：

---

基于 10,10-双[4-(4-氨基苯氧基)-3-甲基苯基]-9(10H)-蒽酮的新型聚酰亚胺的合成与表征

摘要 以蒽酮为原料，采用三步法合成了10,10-双[4-(4-氨基苯氧基)-3-甲基苯基]-9(10H)-蒽酮，是一种新型的芳香族二胺。一系列含有甲基取代基和 9(10H)-蒽酮侧基的聚酰亚胺是通过聚酰胺酸 (PAA) 前体和随后的热或化学酰亚胺化过程由这种二胺与各种芳族二酐制备的。PAA 的特性粘度在 0.87 到 1.58 dL/g 之间，相应的聚酰亚胺的重均分子量和数均分子量分别在 49,400-64,200 和 28,700-37,700 范围内。通过化学环脱水法得到的聚酰亚胺大部分在室温下可溶于NMP、DMF、DMAc、Py和间甲酚。这些聚酰亚胺的玻璃化转变温度为 289–313 °C，10% 的失重温度为 484–524 °C，在 800 °C 下的炭产率为 55–63%，在氮气中最大降解速率为 560–584 °C 时的温度。通过热酰亚胺化获得的聚酰亚胺薄膜的拉伸强度为 76.43-119.74 MPa，断裂伸长率为 6.93-12.33%，拉伸模量为 1.91-2.38 GPa。图形概要