【摘要】 <正> 聚芳醚砜是一类具有重要发展前景的高分子材料.合成带有酞侧基的僵硬链高分子,可提高其玻璃化转变温度,是获得耐热高分子的一种途径.最近,刘克静等从改进合成技术,使酚酞型聚芳醚砜的生产有了现实性.并且发现在改进的聚合条件下,酚酞表现出类似“自催化”的作用,能使聚合反应速度明显加快.其反应机理正在研究中. 本文为进一步验证酚酞的特殊反应性,了解因酚酞介入的共聚反应行为及其对聚合物结构和性能的影响,提高普通聚芳醚砜的使用温度或改善其流动性,设计合成了酚酞与几种不同结构双酚的共聚物.并对其结构和性能关系进行了探讨.本文报道了对共聚物更多还原

【Abstract】 A series of polyarylethersulfone copolymers containing phenolphthalein segments were successfully synthesized (APS, SPS, HPS and CPS). A preliminary study on the copolycondesa-tion process showed that the presence of phenolphthalein component can accelerate the reaction, Copolymers were characterized by Reduced Viscosity, 1H, 13C-NMR and IR. The Tg of copolymers smoothly increases with the increase of the amount of phenolphthalein component. All the copolymers were proved to be random and amorphous by IR, NMR, DSC and WAXD.更多还原