Synthesis and Characterization of Soluble Aromatic Polyesters Containing Oligophenyl Moieties in the Main Chain
Synthesis and Characterization of Soluble Aromatic Polyesters Containing Oligophenyl Moieties in the Main Chain
复制标题
主链含低聚苯基的可溶性芳香族聚酯的合成与表征
DOI：
10.1021/ma00094a012
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发表时间：
1994
期刊：
影响因子：
5.5
通讯作者：
K. Gravalos
中科院分区：
文献类型：
--
作者：
J. Kallitsis;F. Kakali;K. Gravalos
合成了一系列含取代低聚苯基的刚性芳香族聚酯。脂肪族和芳香族侧基用于增加溶解度。以钯配合物为催化剂，通过芳族格氏试剂与卤代芳烃的偶联反应，合成了新的齐聚苯二醇。通过熔融缩聚制备了聚酯，并通过粘度计、热分析和动态力学分析对其进行了表征。在30-85°C范围内，特性粘度的温度依赖性对侧基的类型和位置敏感。具有芳香族取代基的聚酯在高达400°C下是稳定的
A series of rigid aromatic polyesters containing substituted oligophenyls was prepared. Aliphatic and aromatic side groups were used to increase the solubility. New oligophenyldiols were synthesized by coupling aromatic Grignard reagents with aromatic halides, using palladium complexes as catalysts. The polyesters were prepared by melt polycondensation and characterized by viscosimetry, thermal analysis, and dynamic mechanical analysis. The temperature dependence of the intrinsic viscosity, in the range 30-85°C, was sensitive to the type and position of the side groups. Polyesters with aromatic substituents were stable up to 400°C