Advanced Modelling for Investigating the Effects of Reactor Operation on Controlled Living Emulsion Polymerization
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Vincent G Gomes
Accurate control of product properties through the manipulation of transfer agents can be of great benefit to industry in producing targeted polymeric materials. In this work we developed experimental protocols and mathematical models for understanding and characterising semi-batch emulsion polymerization in the presence of a xanthate-based transfer agent. Zero-one kinetics was employed with population balance equations to predict monomer conversion, molecular weight (MWD) and particle size (PSD) distributions in the presence of xanthate-based reversible addition-fragmentation chain transfer (RAFT) agents. The effects of the transfer agent (AR), surfactant, initiator (KPS) and temperature were investigated. Monomer feed rate was found to strongly affect conversion, MWD and PSD. The polymerization rate (Rp), number average molecular weight (Mn) and particle size () decreased with increasing AR. Rp increased with increase in SDS and KPS; while with increase in temperature, Mn decreased, Rp increased and increased. With semi-batch mode, Mn and increased with monomer flow rate.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
Artikel in diesem Heft
- Article
- Editorial: Special Issue Contributed from CHEMECA 2008-Mathematical Modeling
- Advanced Modelling for Investigating the Effects of Reactor Operation on Controlled Living Emulsion Polymerization
- Influence of Jet Velocity on Jet Breakup in Immiscible Liquid-Liquid Systems
- Computational Fluid Dynamics Study of New Vacuum Degassing Process
- Kinetic Simulation of Methacrolein and Lactone Production from the Catalytic Oxidation of Isobutane over Lanthanide Phosphomolybdates
- Operability Analysis of MTBE Reactive Distillation Column using a Process Simulator
- MIQP-Based MPC in the Presence of Control Valve Stiction
- A Theoretical Investigation into Phase Change Clothing Benefits for Firefighters under Extreme Conditions
- Travelling Waves in a Two-Step Chain Branching Model with Heat Loss
- Three-Dimensional Numerical Study on Flames
- 2D Computer Simulations of Ohmic Heating of Milk Solutions in Laminar Annular Flow
- Inhibition of Premixed Methane-Air Flames with CF3I
- Adaptive Supervisory Control of an Industrial Steel Slab Reheating Furnace
- Analysis of an Immoblised Enzyme Reactor with Catalysts Activation
Artikel in diesem Heft
- Article
- Editorial: Special Issue Contributed from CHEMECA 2008-Mathematical Modeling
- Advanced Modelling for Investigating the Effects of Reactor Operation on Controlled Living Emulsion Polymerization
- Influence of Jet Velocity on Jet Breakup in Immiscible Liquid-Liquid Systems
- Computational Fluid Dynamics Study of New Vacuum Degassing Process
- Kinetic Simulation of Methacrolein and Lactone Production from the Catalytic Oxidation of Isobutane over Lanthanide Phosphomolybdates
- Operability Analysis of MTBE Reactive Distillation Column using a Process Simulator
- MIQP-Based MPC in the Presence of Control Valve Stiction
- A Theoretical Investigation into Phase Change Clothing Benefits for Firefighters under Extreme Conditions
- Travelling Waves in a Two-Step Chain Branching Model with Heat Loss
- Three-Dimensional Numerical Study on Flames
- 2D Computer Simulations of Ohmic Heating of Milk Solutions in Laminar Annular Flow
- Inhibition of Premixed Methane-Air Flames with CF3I
- Adaptive Supervisory Control of an Industrial Steel Slab Reheating Furnace
- Analysis of an Immoblised Enzyme Reactor with Catalysts Activation
