Propagation Kinetics of the Radical Polymerization of Methylated Acrylamides in Aqueous Solution. Issue 20 (14th August 2013)

• Record Type: Journal Article
• Authors: Schrooten, Jens; Lacík, Igor; Stach, Marek; Hesse, Pascal; Buback, Michael
• Is Part Of: Macromolecular chemistry and physics. Volume 214:Issue 20(2013:Oct.)
• Page Start: 2283
• Page End: 2294
• Publication Date: 2013-08-14
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201300357
• Languages: English
• ISSNs: 1022-1352

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Propagation rate coefficients, <italic>k</italic>_p, of the radical polymerization of <italic>N</italic>, <italic>N</italic>‐dimethylacrylamide (<italic>N</italic>, <italic>N</italic>‐dimethylprop‐2‐enamide), <italic>N</italic>‐methylmethacrylamide (<italic>N</italic>, 2‐dimethylprop‐2‐enamide), and methacrylamide (2‐methylprop‐2‐enamide) in aqueous solution are measured via pulsed‐laser polymerization in conjunction with size‐exclusion chromatography within wide ranges of monomer concentration, temperature, and pressure. As observed for aqueous solutions of other monomers, <italic>k</italic>_p decreases significantly towards higher monomer concentration. For methacrylamide, a higher activation energy and a larger volume of activation are found as compared with <italic>N</italic>, <italic>N</italic>‐dimethylacrylamide. These two activation parameters are almost identical for <italic>N</italic>‐methylmethacrylamide and for <italic>N</italic>, <italic>N</italic>‐dimethylacrylamide. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg3m82wq6s" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>