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Graft copolymerization with new class of acidic peroxo salts as initiators. I. Grafting of acrylamide onto cotton–cellulose using potassium monopersulfate, catalyzed by co(II)
Author(s) -
Sahoo Prafulla K.,
Samantaray Himansu S.,
Samal Rajani K.
Publication year - 1986
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/app.1986.070320701
Subject(s) - copolymer , grafting , monomer , acrylamide , cellulose , polymer chemistry , yield (engineering) , chemistry , catalysis , salt (chemistry) , polymerization , potassium , potassium persulfate , polymer , materials science , organic chemistry , metallurgy
Graft copolymerization of acrylamide (AM) onto cotton–cellulose has been studied using a new class of acidic peroxo‐salt “potassium monopersulfate” as initiator catalyzed by Co(II). It is observed that the graft yield is influenced by the reaction time, temperature, and concentrations of the monomer, catalyst, initiator, at fixed weight of the polymer. Maximum graft yield (30.8%) is obtained at 40°C under nitrogen atmosphere for the concentrations of monomer 1.2 M ; initiator 4.83 × 10 −3 M ; Co(II) 5 × 10 −4 M for 4 h of reaction time. The graft copolymers after proper purification have been subjected to IR analysis, testing of their water‐retention properties, rot resistance, tensile properties, and behavior towards acids and alkalies. The results of such analysis are compared with the base. Suitable mechanism for the graft copolymerization is suggested and grafting rate has been evaluated.