AN-VAc-MAS三元溶液连续共聚的研究

摘要

The ternary compolymer of acrylonitrile (AN)/vinylacetate ( VAc)/methylacrylsulfonate( MAS) was prepared with azobisisobutyronitrile (AIBN) as an initiator and isopropanol (IPA) as a relative molecular mass regulator via solution copoly-merization.The results showed that the AN-VAc-MAS ternary copolymer with the relative molecular mass of 6.76 × 10~4 can be obtained under the conditions as followed; AN-VAc mass ratio 88 : 12,0.43% MAS,1% AIBN and 2% IPA of the total monomers by mass fraction,polymerization temperature 78 ℃.%采用溶液聚合法,以偶氮二异丁腈(AIBN)为引发剂,异丙醇(IPA)为相对分子质量调节剂,制得丙烯腈(AN)/醋酸乙烯酯(VAc)/甲基丙烯磺酸钠(MAs)三元共聚物.结果表明:当AN∶VAc质量比为88∶12,MAs,AIBN,IPA质量分数(相对于单体总质量)分别为0.43%,1%,2%,聚合温度78℃条件下,可获得粘均相对分子质量为6.76×10~4的AN-VAc-MAS三元聚合物.