摘要
以双酚芴和碳酸二苯酯为原料,采用熔融酯交换法合成具有高耐热性的芴基聚碳酸酯。考查催化剂种类、催化剂用量、原料摩尔比、升温速率、反应温度、反应时间和真空度等因素对产物相对分子质量的影响,得到最佳的反应条件。合成的芴基聚碳酸酯玻璃化转变温度达到226.5℃,耐热性好。
Bisphenol fluorene and diphenyl carbonate were used as raw materials to synthesize fluorene-based polycarbonate with high heat resistance by melt transesterification.The influence of catalyst type,catalyst amount,molar ratio of raw materials,heating rate,reaction temperature,reaction time and vacuum degree on the molecular weight of the product was investigated,and the optimal reaction conditions were obtained.The synthesized fluorene-based polycarbonate had a glass transition temperature of 226.5℃ and good heat resistance.
作者
吴明源
鄂永胜
续东瀛
王浩男
WU Ming-yuan;E YONG-sheng;XU Dong-ying;WANG Hao-nan(School of Biological and Chemical Engineering,Liaoning Institute of Science and Technology,Benxi 117004,China)
出处
《当代化工》
CAS
2021年第4期816-819,共4页
Contemporary Chemical Industry
基金
辽宁省自然科学基金项目(项目编号:20180550114)
辽宁科技学院大学生创新创业训练计划项目(项目编号:202011430042)。
关键词
聚碳酸酯
双酚芴
碳酸二苯酯
熔融酯交换法
Polycarbonate
Bisphenol fluorene
Diphenyl carbonate
Melt transesterification
