主链芳香型刚性链聚醚酮（砜）分子结构与其热性能的研究

Relationship Between Molecular Structure and Its Heat Properties for Rigid Chain Polymers of Poly(aryl ether ketone sulphone)s

通过模型化合物ＡｒＯＡｒＣＯＡｒＡｒＣＯＡｒＯＡｒ（Ａｒ为苯基或１，４－亚苯基）的全优化结构，得到芳环之间的平均二面角为３７．５°，由其结构参数建立了刚性链聚物分子结构与其熔点及玻璃化温度的关系式。据此较好地预测了新品种均聚物的热性能。

The full optimization structure of model compound ArOArCOArArCOArOAr is presented with average dihedral angle of 37.5*,Based on this ,the molecular structure is related to the melting point and glass transition for poly (aryl ether ketone) s and poly(arylether sulphone) s family with rigid molecular chain, The obtained relationship between them is well extended to predict the heat properties of the new family of aromatic homopolymers.