摘要
以过氧化二苯甲酰(BPO)为引发剂,正庚烷/环己酮为溶剂,用溶液接枝法合成了高胶含量的苯乙烯(St) 三元乙丙橡胶(EPDM) 丙烯腈(AN)接枝共聚物(EPDM g SAN)。研究了反应温度、引发剂浓度、EPDM含量、混合溶剂的配比以及反应时间对接枝共聚合反应的影响。FTIR分析证实EPDM已接枝上SAN支链。实验证明,接枝共聚物对SAN树脂具有良好的增韧效果。
High rubber styrene-EPDM-acrylonitrile was prepared by the graft copolymerization of styrene(St) and acrylonitrile(AN) onto ethylene-propylene-diene terpolymer(EPDM) in the solution process using benzoyl peroxide(BPO) as an initiator and mixture of n-heptane/cyclohexanone as cosolvent.The effects of reaction conditions,such as reaction temperature,initiator concentration,EPDM content,volume ratio of cosolvent,and reaction time on the graft copolymerization were discussed.FTIR provided substantial evidence of the grafting of St and AN onto EPDM.The grafting copolymer had a remarkable toughening effect on SAN.
出处
《弹性体》
CAS
2004年第3期6-9,共4页
China Elastomerics
基金
与企业联合的横向项目(02440003050252)
