Two polyesteramides were synthesized via polycondensation reactions involving 4′-amino-4-hydroxychalcone with succinic acid and terephthalic acid , utilizing phosphoryl chloride as a chlorinating agent. A parallel reaction with (E)-1,3-bis(4-hydroxyphenyl) prop-2-en-1-one chalcone () yielded two polyesters under identical conditions. The resultant polymers were obtained with excellent yields ranging from 93 % to 98 %. Characterization of the obtained polyesteramides and polyesters was conducted using various analytical techniques. Fourier-transform infrared spectroscopy (FTIR) evidenced the disappearance of the OH group's broad band from the initial monomers, providing strong support for polymer formation. Thermal gravimetric analysis (TGA) results indicated high thermal stability of all prepared polymers at elevated temperatures, designating them as potential thermoplastic polymers. Powder X-ray diffraction (XRD) outcomes demonstrated a significant amorphous nature for all synthesized polymers, with degrees ranging from 67.56 % to 74.75 %. Analysis of current/voltage (I-V) curves revealed a wide spectrum of electrical conductivity for polymers containing chalcone in their repeating units, ranging from negligibly low values of 0.08 µS/cm to 0.31 μS/cm, indicating their potential as semiconducting materials. Variations in conductivity across synthesized polymers were attributed to the degree of conjugation in polymeric chains and their crystallinity levels.

中文翻译：

---

设计的新型查尔酮基聚酯和聚酯酰胺的分子共轭和结晶度对其热电导率的影响

以氯化磷为氯化剂，通过4′-氨基-4-羟基查耳酮与琥珀酸和对苯二甲酸的缩聚反应合成了两种聚酯酰胺。与(E)-1,3-双(4-羟基苯基)丙-2-烯-1-酮查耳酮()的平行反应在相同条件下产生两种聚酯。所得聚合物的产率极好，范围为 93% 至 98%。使用各种分析技术对所得聚酯酰胺和聚酯进行表征。傅里叶变换红外光谱 (FTIR) 证明 OH 基团的宽带从初始单体中消失，为聚合物的形成提供了强有力的支持。热重分析（TGA）结果表明所有制备的聚合物在高温下具有高热稳定性，将它们指定为潜在的热塑性聚合物。粉末 X 射线衍射 (XRD) 结果表明，所有合成聚合物均具有显着的无定形性质，其程度范围为 67.56 % 至 74.75 %。电流/电压 (IV) 曲线分析显示，重复单元中含有查耳酮的聚合物具有宽范围的电导率，范围从可忽略的低值 0.08 µS/cm 到 0.31 µS/cm，表明它们作为半导体材料的潜力。合成聚合物的电导率变化归因于聚合物链的共轭程度及其结晶度水平。