Comparison of techniques for the determination of conversion during suspension polymerization reactions
The determination of conversion during suspension polymerization reactions is not an easy task due to the heterogeneity of the reaction medium and the tendency of particles to agglomerate rapidly when stirring is stopped. Usually, bulk polymerization in ampoules is employed to study the kinetics of suspension polymerization reactions. In this work, a comparison of different techniques for the determination of conversion during suspension polymerization reactions is presented. Results showed a good agreement between the conversion obtained by gravimetry during styrene suspension polymerization and on-line conversion monitoring data using fiber-optic based Raman Spectroscopy. Nevertheless, the polymerization rate of styrene bulk polymerization carried out in ampoules was higher than the real reaction rate of styrene suspension polymerization due to slightly higher reaction temperatures. Simulation results using the experimental temperature data in a mathematical model confirmed these results.
Main Authors: | Santos,J. C., Lopes,C. N., Reis,M. M., Giudici,R., Sayer,C., Machado,R. A. F., Araújo,P. H. H. |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Brazilian Society of Chemical Engineering
2008
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000200017 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
A COMPARISON OF DIFFERENT MODELING APPROACHES FOR THE SIMULATION OF THE TRANSIENT AND STEADY-STATE BEHAVIOR OF CONTINUOUS EMULSION POLYMERIZATIONS IN PULSED TUBULAR REACTORS
by: Sayer,C., et al.
Published: (2002) -
Kinetics of vinyl acetate emulsion polymerization in a pulsed tubular reactor: comparison between experimental and simulation results
by: Sayer,C., et al.
Published: (2002) -
EFFECT OF STIRRING SPEED ON CONVERSION AND TIME TO PARTICLE STABILIZATION OF POLY (VINYL CHLORIDE) PRODUCED BY SUSPENSION POLYMERIZATION PROCESS AT THE BEGINNING OF REACTION
by: Marinho,Rita, et al.
Published: (2018) -
Mathematical modeling of polystyrene particle size distribution produced by suspension polymerization
by: Machado,R.A.F., et al.
Published: (2000) -
Simulation of emulsion copolymerization reactions in a continuous pulsed sieve-plate column reactor
by: Sayer,C., et al.
Published: (2004)