RADICAL OF ACRYLAMIDE INITIATED BY CERIC AMMONIUM NITRATE-METHIONINE REDOX INITIATOR SYSTEM

The polymerization of acrylamide, initiated by a cerium (IV) [Ce(IV)] ammonium nitrate-methionine redox initiator system, was carried out in an aqueous solution at different reaction conditions. The dependence of molecular weight and polymerization yield on the concentration of C e(IV), polymerization time, and temperature was determined. The molecu lar weight distributions (MWD) of the resulting polymers were examined using the HPLC method. Based on the HPLC results, optimum reaction co nditions were determined that provided an opportunity to obtain a poly mer that had a narrow MWD. (C) 1997 John Wiley & Sons, Inc.