Graft polymerization of acrylamide to oxyethyl cellulose initiated with Co(III) complexes

• Published in: Polymer science USSR 1989, Vol.31 (1), p.136-142
• Main Authors: Nemchinov, I.A., Molotkov, V.A., Kurlyankina, V.I.
• Format: Article
• Language: English
• ISSN: 0032-3950; 1878-268X
• DOI: 10.1016/0032-3950(89)90361-4

The kinetics of graft polymerization of acrylamide to oxyethyl cellulose are studied, and the ratios of the kinetic constants for the reaction in per chloric acid medium are determined. The effect of pH and the formation of Co(III) complexes with monobasic organic acids on the MM of the grafted chains, and the rates of initiation and polymerization are evaluated quantitatively. During the first stage in the formation of Co(III) complexes with acetic and monochloraacetic acids, the hydrolyzed unsubstituted form of Co(III) oxidizes the oxythyl cellulose. Unsubstituted Co(III) terminates the propagation of polyacrylamide chains.