CAJ | 학술논문

本文研究了哌嗪(PPZ)与二氧化硫(SO2)电荷转移复合物(CTC)的制备及其作为光引发剂引发甲基丙烯酸甲酯(MMA)的聚合，发现PPZ/SO2摩尔比对聚合速率影响甚大.当PPZ/SO2为1∶2时，形成了具有潜在引发能力的复合物(Ⅰ).Ⅰ引发MMA光聚合的动力学关系式为Rp＝Kp［Ⅰ］0．34［MMA］1．06，表观活化能为23.7 kJ/mol.并对引发机理进行了探讨.
본문연구료고진(PPZ)여이양화류(SO2)전하전이복합물(CTC)적제비급기작위광인발제인발갑기병희산갑지(MMA)적취합，발현PPZ/SO2마이비대취합속솔영향심대.당PPZ/SO2위1∶2시，형성료구유잠재인발능력적복합물(Ⅰ).Ⅰ인발MMA광취합적동역학관계식위Rp＝Kp［Ⅰ］0．34［MMA］1．06，표관활화능위23.7 kJ/mol.병대인발궤리진행료탐토.
Photopolymerization of methyl methacrylate (MMA) was kinetically studied by using piperazine (PPZ)-sulfur dioxide (SO2) charge-transfer complex as a photoinitiator. It was found that the polymerization rate (Rp) was dependent on the molar ratio of piperazine to sulfur dioxide, and the complex(Ⅰ) with a composition of PPZ／SO2＝1／2 in molar ratio was the most effective. By using Ⅰ as the photoinitiator, the polymerization kinetics can be expressed as Rp=Kp ［Ⅰ］0．34［MMA］1．06, and the apparent activation energy (Ea) value was obtained to be 23.7 kJ/mol. A possible polymerization mechanism was also proposed.