Modeling and optimization of fed-batch emulsion copolymerization of styrene and butyl acrylate in the presence of a chain transfer agent.
Brahim Benyahia
M. Abderrazak Latifi
Christian Fonteix
Fernand Pla
2134/13064
https://repository.lboro.ac.uk/articles/conference_contribution/Modeling_and_optimization_of_fed-batch_emulsion_copolymerization_of_styrene_and_butyl_acrylate_in_the_presence_of_a_chain_transfer_agent_/9245693
This paper deals with modelling and optimization of a semi-batch emulsion
copolymerization reactor of styrene and butyl acrylate in the presence of n-C12
mercaptan as chain transfer agent (CTA). The model is developed using reaction rate
laws available in the literature. The population balance equations are based on a new
approach which reduces significantly the number of equations involved and consequently
the computation time. The model allows predicting of (i) the global monomer conversion,
(ii) the microstructure, the number and weight average molecular weights, and the glass
transition temperature of the resulting macromolecules, and (iii) the average particle
diameters. A subset of the most influential parameters of the model is identified using a
parameter estimability approach.
The resulting model is then validated and used to determine the optimal feed policy
which enables to produce core-shell latex particles with a designed glass temperature
profile at high conversion. The set of optimal solutions is determined by means of a
mutiobjective optimization approach. Finally, the unique solution to be implemented is
obtained by using a decision making strategy.
2013-09-03 13:09:14
Modelling
Core-shell particles
Multiobjective optimization
Decision aid
Chemical Engineering not elsewhere classified