摘要
研究采用高温和剪切力的作用直接引发淀粉与丙烯酸酯单体的接枝共聚合反应．讨论了各种反应条件对接枝反应的影响，并进一步研究了接枝物在淀粉聚乙烯共混体系中的增容作用．实验结果表明，高温和剪切作用力可以引发淀粉与丙烯酸酯单体的接枝共聚合反应。接枝物作为增容剂，对淀粉聚乙烯共混体系的力学性能和流变学性能均有所改善．
By means of initiation of the high temperature and shearing stress of an extruder,we synthesized the graft copolymer of starch with acrylate monomers based on the simple dry method.The effects of reaction conditions on graft copolymerization were discussed. Grafted starch used as a compatibilizer for the blend system of starch and polyethylene was further investigated. The results indicate that grafted starch as a compatibilizer can improve the mechanical properties and rheologic properties of the blend of starch and polyethylene.
关键词
淀粉
丙烯酸酯
接枝共聚
相容性
starch,acrylate,graft copolymerization,compatibility
