Synthesis of Ultra-high Molecular Weight Polyacrylonitrile(UHMWPAN) by Aqueous Suspension Polymerization

摘要：

　　Acrylonitrile (AN) and itaconic acid (IA) were used to synthesize UHMWPAN by aqueous suspension method with 2,2”-azobisisobutyronitrile (AIBN) as the initiator and polyvinylalcohol (PVA) as the disperser at different temperatures (55℃~75℃) for different timings (1.0h~3.0h).The usage amounts of AN,IA,AIBN and PVA were also technical polymerization parameters used to obtain the optimal polymerization process.We found that the conversion and the viscosity average molecular weight both achieved the optimum levels when the conditions were as follows: the total monomer concentration (21wt%),the monomer ratio (AN∶ IA=98∶2),the usage amount of the initiator (AIBN,0.01wt%),the usage amount of the disperser (PVA,0.1wt%),the polymerization temperature (70℃) and the polymerization time (2h).

关键词： UHMWPAN Aqueous suspension polymerization Conversion Viscosity average molecular weight Polymerization parameter optimization

作者: Huiyu Jiang Meihua Zhou Ding Pan

作者单位: Key Laboratory of High Performance Fibers & Products,Ministry of Education,Donghua University,Shangh Key Laboratory of High Performance Fibers & Products,Ministry of Education,Donghua University,Shangh

会议类型: 国内会议

会议名称: 2014全国高性能纤维及复合材料新技术应用与产业化推进研讨会

会议地点: 杭州

会议语种:英文

页码: 90-100

在线出版日期: 2014-10-24（万方平台首次上网日期，不代表论文的发表时间）