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A study of the synthesis, kinetics, and characterization of reactive graft copolymers of poly(vinyl imidazole) and cellulose for use as supports in enzyme immobilization and metal ion uptake
Author(s) -
Chauhan Ghanshyam S.,
Singh Baljit,
Chauhan Sandeep,
Dhiman Surya K.,
Kumar Dinesh
Publication year - 2006
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.23651
Subject(s) - potassium persulfate , ammonium persulfate , polymer chemistry , copolymer , monomer , chemistry , styrene , cellulose , metal ions in aqueous solution , vinyl alcohol , kinetics , polymerization , nuclear chemistry , polymer , organic chemistry , metal , physics , quantum mechanics
In continuation to our earlier work to use bioresource for developing alternate materials for use at the interface of biotechnology and polymer science, we have utilized pine needles as a renewable stock of cellulose to synthesize graft copolymers of vinyl imidazole. Kinetics of N ‐VIm by simultaneous γ‐irradiation method has been investigated as a function of total dose, monomer concentration, and amount of water. Effect of water–methanol solvent composition on graft yields and polymerization kinetics has also been studied at the optimum grafting conditions of the total dose and monomer concentration. Effect of some additives such as ZnCl 2 , Mohr salt, tetramethylethylene diamine, potassium persulfate, ammonium persulfate as grafting accelerators and promoters has also been studied. Graft copolymers have been characterized by elemental analysis, FTIR, and swelling studies. The graft copolymers have been used as supports for metal ions sorption, enzyme immobilization, and as potential biomimicking catalysts. Sorption behavior of Fe 2+ ions and Cu 2+ ions and the immobilization of bovine serum albumin and protease as a function of graft yield has been reported. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 1522–1530, 2006