PP固相接枝GMA微观聚合动力学研究  

Research on the Microscopic Polymerization Kinetics of Glycidyl Methacrylate Solid-phase Grafted onto Polypropylene

作　　者：武芹[1] 王登[1] 王鉴[2] 

机构地区：[1]新疆石油勘察设计研究院(有限公司),新疆克拉玛依834000 [2]东北石油大学,黑龙江大庆163000

出　　处：《塑料科技》2013年第8期36-40,共5页Plastics Science and Technology

摘　　要：基于聚丙烯(PP)固相接枝聚合的终止反应主要是自由基单基终止反应的假设提出相应的接枝聚合机理,并建立聚合速率模型。实验考察了PP接枝甲基丙烯酸缩水甘油酯(GMA)体系单体浓度、引发剂浓度、聚合温度与聚合初期接枝速率的依赖关系。结果表明:初始聚合速率与单体浓度呈1.57次方、与引发剂浓度呈0.48次方关系,与聚合温度关系服从Arrhenius方程,并求得接枝反应的表观活化能Ea为86.63kJ/mol。Based on the assumption that single radical termination is the main way of termination reaction of radical solid phase graft polymerization, the graft polymerization mechanism and the graft polymerization rate model were proposed. The effects of monomer concentration, initiator concentration, and temperature on the polymerization rate during GMA grafting onto PP were investigated. The results show that： the initial polymerization rate is 1.57 power of monomer concentration, and is 0.48 power of initiator concentration, the polymerization rate and temperature obeys Arrhenius equation. The value of the apparent reactive energy （Ea） is 86.63 kJ/mol.

关 键 词：聚丙烯 固相接枝 甲基丙烯酸缩水甘油酯 接枝机理 动力学模型 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]