【摘要】 为充分利用蚕丝下脚料制取似蚕丝纤维,我们首先作了丙烯腈(AN)-丝朊(SP)在硫氰酸钠(NaSCN)浓水溶液中,以偶氮二异丁腈(AIBN)为引发剂,草酸(OA)作增白剂,在恒温条件下的接枝共聚合。反应体系为均相。研究了蚕丝溶解温度、溶解时间、接枝共聚合反应时间、反应温度、AIBN浓度、AN浓度、SP浓度、NaSCN浓度及OA浓度对AN-SP接枝共聚合的总转化率,AN转化率、AN接枝效率、SP的接枝效率、SP接枝率、未接枝蛋白和丙烯腈均聚物含量的影响。更多还原

【Abstract】 The graft copolymerization of acrylonitrile (AN) onto fibroin (SP) in concentration aqueous solution of sodium thiocyanate at constant temperature has been carried out using azobisisobutyronitrile (AIBN) as initiator and oxalic acid ( OA) as whitening agent,in order to fully utilize silk waste to make silk-like fibers (filaments) The reaction system of graft copolymerization seems to be homogeneous phase.The effect of the temperature and the period of time during solution process of silk,the grafting reaction temperature and time,the concentration of AIBN,AN,SP,NaSCN and OA separately on the totle conversion,the conversion of AN,the graft efficiency of AN and SP,the graft yield of SP,the content of the ungrafted protein and the homopolymer of AN (PAN) has been investigated.更多还原