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The polymerization of acrylamide initiated with CE(IV) and KMNO 4 redox systems in the presence of glycine
Author(s) -
Özeroğlu Cemal,
Güney Orhan,
Saraç A. Sezai,
Mustafaev Mamed I.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960502)60:5<759::aid-app15>3.0.co;2-u
Subject(s) - polymerization , acrylamide , polymer chemistry , monomer , polyacrylamide , chemistry , precipitation polymerization , polymer , cationic polymerization , solution polymerization , molar mass distribution , yield (engineering) , glycine , radical polymerization , organic chemistry , materials science , amino acid , biochemistry , metallurgy
Glycine‐Ce(IV) salts and −KMnO 4 initiator systems were used for the polymerization of acrylamide, resulting in water‐soluble polyacrylamide, which contains amino acid end groups. The dependence of polymerization yields and molecular weights of polymers on the mole ratio of acrylamide monomer to glycine, the polymerization time, the temperature, and the concentration of sulfuric acid were investigated. The decrease in the mole ratio of acrylamide to glycine resulted in a decrese in the molecular weight, and an increase in the yield of acrylamide polymer, which contains a glycine end group. With increasing acid concentration of the polymeric solution, the polymerization yield and the molecular weight of polymer decrease. Ce(IV) and Mn(IV) reduced to Ce(III) and Mn(II) in the polymerization reaction. The amounts of Ce(III) and Mn(II) bound to polymer were determined. The composition of the polymerization product was investigated and a bimodal character of the molecular weight distribution was observed. The mechanism of this phenomena is discussed. © 1996 John Wiley & Sons, Inc.