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Polymerization of acrylamide and methacrylamide initiated by a potassium peroxydiphosphate/Mn(II) system
Author(s) -
Behari Kunj,
Taunk Kavita,
Das Rima
Publication year - 1998
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199806)46:2<126::aid-pi976>3.0.co;2-a
Subject(s) - methacrylamide , polymerization , acrylamide , degree of polymerization , polymer chemistry , monomer , chemistry , aqueous solution , kinetics , activation energy , polymer , organic chemistry , physics , quantum mechanics
The kinetics of aqueous polymerization of acrylamide (AM) and methacrylamide (MAM) have been studied using a potassium peroxydiphosphate (PDP/Mn(II) system in an inert atmosphere at 40°C and at constant pH (1·30). The polymerization rate R p has been found to be proportional to the half power of PDP and Mn(II) concentrations. The overall energy of activation (Δ E ) was found to be 40·2±0·1kJmol ‐1 and 45·0±0.1kJmol ‐1 for AM and MAM, respectively. Intrinsic viscosity [η], viscometric average molecular weight ( M v ) and number average degree of polymerization ( P n ) at different concentrations of PDP, Mn(II) and monomer are reported. © 1998 SCI.