Melt Grafting of Glycidyl Methacrylate onto Polyethylene
-
S. Hojabr
Abstract
The melt grafting of Glycidyl Methacrylate (GMA) onto Polyethylene in the presence of free radical initiators was conducted in a co-rotating twin screw extruder. Reaction kinetic parameters for the overall grafting and homopolymerization reactions were estimated in a batch melt mixer. Residence time distribution (RTD) in the extruder was determined and mean residence time and Peclet number (Pe) were estimated for different sets of reaction conditions.
A twin screw simulation program was used to predict the flow characteristics along the length of the extruder. A modular reactor model consisting of plug flow and “axial dispersion” reactor cells was constructed and with the kinetic and transport information and the actual melt temperatures, the overall GMA conversion was predicted. In most cases the predicted conversion agreed well with experimentally determined values.
© 1998, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Editorial
- In Memory of Morand Lambla (1939–1997)
- Regular Contributed Articles
- Free Radical Grafting of Glycidyl Methacrylate onto PP in a Co-rotating Twin Screw Extruder
- Melt Grafting of Glycidyl Methacrylate onto Polyethylene
- Generation of Partially Crosslinked Expanded PP-films and -sheets
- Continuous Polymerization and Copolymerization of Lauryl Lactam in a Modular Corotating Twin Screw Extruder
- Peroxide Induced Crosslinking and Degradation of PA
- Squalane as Model for Free Radical Reactivity of PP
- Thermal Polymerization of Methyl Methacrylate at High Temperature
- Using Mold Pressure Rise Data to Obtain Viscosity of Fast Polymerizing Systems
- Sensitivity of In-line Rheometry for Extrusion of Mg(OH)2 filled LDPE Compounds
- Effect of Temperature and Compatibilizer on Interfacial Tension of PE/PA-6 and PP/EVOH
- Predicting Drop Breakup in Complex Flows from Model Flow Experiments
- Interactions in Binary and Ternary Polyolefin Blends
- Injection Moulding of Rubber Compounds1
- Pseudoplasticity and Dilatancy in Shallow Channel Flows
Articles in the same Issue
- Contents
- Contents
- Editorial
- In Memory of Morand Lambla (1939–1997)
- Regular Contributed Articles
- Free Radical Grafting of Glycidyl Methacrylate onto PP in a Co-rotating Twin Screw Extruder
- Melt Grafting of Glycidyl Methacrylate onto Polyethylene
- Generation of Partially Crosslinked Expanded PP-films and -sheets
- Continuous Polymerization and Copolymerization of Lauryl Lactam in a Modular Corotating Twin Screw Extruder
- Peroxide Induced Crosslinking and Degradation of PA
- Squalane as Model for Free Radical Reactivity of PP
- Thermal Polymerization of Methyl Methacrylate at High Temperature
- Using Mold Pressure Rise Data to Obtain Viscosity of Fast Polymerizing Systems
- Sensitivity of In-line Rheometry for Extrusion of Mg(OH)2 filled LDPE Compounds
- Effect of Temperature and Compatibilizer on Interfacial Tension of PE/PA-6 and PP/EVOH
- Predicting Drop Breakup in Complex Flows from Model Flow Experiments
- Interactions in Binary and Ternary Polyolefin Blends
- Injection Moulding of Rubber Compounds1
- Pseudoplasticity and Dilatancy in Shallow Channel Flows
