有机过氧化物与亚锡离子引发MMA的聚合动力学

Studies on the Kinetics of Polymerization of MMA Initiated by Organic Peroxide-Stannous Ion Systems

本文对有机过氧化物(BPO、LPO)与亚锡离子引发体系引发甲基丙烯酸甲酯(MMA)聚合进行了研究。结果表明,亚锡离子对有机过氧化物引发MMA聚合有促进作用。测定了MMA聚合的总活化能E_a,BPO-Sn^(2+)体系E_a=5.5kJ/mol;LPO-Sn^(2+)体系E_a=49.1kJ/mol。还研究了聚合动力学。

The kinetics of polymerization of methyl methacrylate(MMA) initiated by benzoyl peroxide(BPO)-stannous ion and lauroyl peroxide(LPO)-stannous ion redox systems have been investigated, It was found that organic peroxide-stannous ion systems were very effective for initiating the polymerization of MMA. The overall activation energy of polymerization and the rate equations of polymerization were determined.