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以 Na BH4 为还原剂对含有二氮杂萘酮结构的聚芳醚砜酮 ( PPESK)进行羟基化改性 ,并用 FT-IR和 1H-NMR对还原后的聚芳醚砜酮 ( PPESK— OH)的结构进行表征 .通过测定玻璃化转变温度 ( Tg)、水接触角和溶解性 ,研究还原后聚合物的性能变化 .结果表明 ,随还原程度加深 ,PPESK— OH的 Tg逐渐升高 ,由 52 9.6K升至 571 .3 K,耐热性能有所改善 ;亲水性能增强 ,当还原率为 54.8%时 PPESK— OH的水接触角为 52 .6°;PPESK还原前后的溶解性能有很大变化
The poly (aryl ether sulfone ketone) (PPESK) containing phthalazinone structure was hydroxylated with Na BH4 as reducing agent and the reduced poly (aryl ether sulfone ketone) (PPESK-OH) was reduced by FT-IR and 1H- ) Was determined by the method of XRD.The properties of the polymer after reduction were investigated by measuring the glass transition temperature (Tg), water contact angle and solubility.The results showed that the Tg of PPESK-OH increased gradually with the degree of reduction, 52 9.6K to 571 .3 K, the heat resistance improved; hydrophilic property enhanced, when the reduction rate of 54.8% PPESK-OH water contact angle of 52.6 °; PPESK reduction before and after the dissolution of a very Big change