自由基引发剂制备高相对分子质量聚丙烯腈研究进展  

Research progress of high relative molecular weight polyacrylonitrile prepared by radical initiators

作　　者：赵亚奇 郭雯静 杜玲枝 赵振新 赵海鹏 ZHAO Yaqi;GUO Wenjing;DU Lingzhi;ZHAO Zhenxin;ZHAO Haipeng(School of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467036, China;School of of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, Henan 450001, China)

机构地区：[1]河南城建学院材料与化工学院,河南平顶山467036 [2]郑州大学化工与能源学院,河南郑州450001

出　　处：《纺织学报》2020年第4期174-180,共7页Journal of Textile Research

基　　金：国家自然科学基金青年基金项目(51803047);河南省科技厅项目(202102210035);河南省高等学校青年骨干教师培养计划项目(2019GGJS227);河南城建学院校级学术技术带头人项目(YCJXSJSDTR201909)。

摘　　要：为开发高品质聚丙烯腈(PAN)共聚物用于PAN基碳纤维生产,针对水相悬浮聚合、水相沉淀聚合和混合溶剂沉淀(悬浮)聚合等自由基聚合工艺的优缺点,结合其反应特征,综述了近几年来自由基引发剂制备高相对分子质量PAN共聚物的研究进展,探讨了油溶性或水溶性引发剂的选择机制,并对制备高相对分子质量PAN共聚物的理论与实验进行分析。根据单一引发剂制备PAN共聚物的实验结果发现:采用纯水相聚合体系可制得高转化率和高相对分子质量的PAN共聚物;采用混合溶剂沉淀(悬浮)聚合反应体系,可在不降低聚合反应产率的前提下,对PAN共聚物的平均相对分子质量进行合理调节。To develop high quality polyacrylonitrile(PAN)copolymer for PAN-based carbon fiber production,in view of the advantages and disadvantages of different polymerization processes,such as aqueous suspension polymerization,aqueous precipitation polymerization and mixed-solvent precipita-tion(suspension)polymerization,and combined with its reaction characteristics,the research progress of high relative molecular weight PAN copolymer prepared by radical initiator in recent years was reviewed.The research contents include the choice of oil-soluble or water-soluble initiator,theoretical and experimental analysis of the preparation of high molecular weight PAN polymer.From the experiment results of PAN copolymers synthesized by a single initiator,it is understood that PAN copolymers with high conversion and high molecular weight can be obtained by using the water phase polymerization system.On the premise of not reducing the polymerization reaction yield,average molecular weights of PAN copolymers can be reasonably adjusted by using the mixed-solvent precipitated(suspension)polymerization.

关 键 词：自由基引发剂 高相对分子质量聚丙烯腈 水相体系 混合溶剂 引发剂选择 高品质碳纤维原丝 

分 类 号：TQ342[化学工程—化纤工业]