On the possibility of using combined polymerization and drying in synthesis of polyacrylamide

AA Lipin, AG Lipin, R Wójtowicz - Chemical Engineering …, 2019 - Taylor & Francis
AA Lipin, AG Lipin, R Wójtowicz
Chemical Engineering Communications, 2019Taylor & Francis
This paper presents investigation results of polyacrylamide synthesis with combined
polymerization and drying. First, polyacrylamide synthesis was carried out in concentrated
aqueous solutions of acrylamide at 30° C. Polymerization was initiated by
K2S2O8/Na2S2O3 an oxidation–reduction system. The monomer conversion degree at this
stage did not exceed 80%. Further, polymerization with simultaneous solvent elimination
from the prepolymer was carried out in a dryer with infrared heat supply and natural …
Abstract
This paper presents investigation results of polyacrylamide synthesis with combined polymerization and drying. First, polyacrylamide synthesis was carried out in concentrated aqueous solutions of acrylamide at 30°C. Polymerization was initiated by K2S2O8/Na2S2O3 an oxidation–reduction system. The monomer conversion degree at this stage did not exceed 80%. Further, polymerization with simultaneous solvent elimination from the prepolymer was carried out in a dryer with infrared heat supply and natural convection. Such conditions provide monomer conversion degree up to 100%.
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