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Redox polymerisation—kinetics of polymerisation of acrylamide initiated by the Mn 3+ ‐citric acid redox system
Author(s) -
Sailaja G.,
Raju K. Mohana,
Raju M. Subramanyam
Publication year - 1993
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/pi.4990320209
Subject(s) - polymerization , redox , chemistry , monomer , acrylamide , citric acid , kinetics , acetic acid , manganese , aqueous solution , polymer chemistry , inorganic chemistry , manganese(iii) acetate , nuclear chemistry , polymer , organic chemistry , physics , quantum mechanics
The kinetics and mechanism of polymerisation of acrylamide initiated by manganese(III) acetate‐citric acid (CA) redox system in aqueous acetic acid and sulphuric acid medium were studied over the temperature range 30‐50° C. The overall rates of polymerisation ( R p ), disappearance of manganic ion (— R m ), and degree of polymerisation (X̄ n ) were measured with variation in [monomer], [Mn 3+ ], [CA], [H + ], μ and temperature. The polymerisation is initiated by the organic free radical arising from the Mn 3+ ‐CA reaction and the termination is by metal ions. The various rate parameters were evaluated and discussed.