继聚醚砜之后,研究了聚芳酯经热处理后其力学性能与形态结构变化的规律。结果表明与聚醚砜类似,经热处理后其力学性能特别是高温力学性能有显著提高。电镜的测试结果表明,这类主链含有苯环的刚性无定形高分子材料,在适当条件下进行热处理后,其聚集态结构都会形成某种局部有序结构,从而使其性能有显著提高。 Following polyethersulfone, the mechanical properties and morphological changes of polyarylate after heat treatment were studied. The results show that similar to polyethersulfone, its mechanical properties after heat treatment, especially high temperature mechanical properties have increased significantly. The results of SEM show that the rigid amorphous polymer chains containing benzene rings in the main chain form some kind of local ordered structure after heat treatment under the proper conditions, which leads to the significant improvement of their properties.