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Chemical Engineering Communications Volume 206, 2019 - Issue 6
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On the possibility of using combined polymerization and drying in synthesis of polyacrylamide

A. A. LipinFaculty of Chemical Engineering and Cybernetics, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia; ORCID Iconhttp://orcid.org/0000-0002-7984-1691View further author information
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A. G. LipinFaculty of Chemical Engineering and Cybernetics, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia; Correspondence[email protected]
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R. WójtowiczInstitute of Thermal and Process Engineering, Division of Industrial Equipment, Cracow University of Technology, Cracow, PolandView further author information
Pages 754-760 | Received 19 Sep 2017, Accepted 11 Sep 2018, Published online: 30 Oct 2018
 
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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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Funding

This project was implemented with financial support from Russian Foundation for Basic Research (grant 14-08-31273-mol_a).

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