Reaction Rate, Molecular Weight and Particle Size after the Suspension Copolymerization of Styrene and Acrylonitrile by Taguchi method

Articles in Press

Document Type : Research Article

Author

Islamic Azad university, Ahar Branch

Abstract

Due to the problem of wide particle size in suspension copolymerization of styrene-acrylonitrile, including the long period of melting time to further processing of large particles and conglomerate and deposit of undesirable small particles in the product transfer line and equipment, had to control of size distribution during production.

The effect of different variables like the reaction temperature, final reaction temperature, the mixer speed, the monomer-to-water ratio, the initiator concentration, the chain transfer agent concentration, the proportion of styrene to acrylonitrile, as the suspending agent concentration, the proportion of styrene to acrylonitrile on the monomer conversion, the molecular weight and particle size of the product by Taguchi approach was investigated.

As the results showed, the best particle size distribuation (PSD) was obtained at the temperature of 76°C and the ratio of water/monomer(wt/wt) 65/35, suspending agent/monomers(wt/wt) 0.016, mixer speed(rpm) 1000 and stabilizer (DEM)/suspending agent(wt/wt) 0.0095.

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Iranian Journal of Chemistry and Chemical Engineering

Articles in Press, Accepted Manuscript
Available Online from 12 November 2023

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