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Functionalization of crosslinked polyacrylamide through γ‐radiation‐induced grafting of 4‐vinylpyridine
Author(s) -
Pande C. S.,
Sharma Ajay
Publication year - 2002
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.10413
Subject(s) - polyacrylamide , grafting , copolymer , benzoyl peroxide , surface modification , polymer chemistry , polymer , materials science , peroxide , chemical modification , pyridine , chemical engineering , chemistry , polymer science , monomer , composite material , organic chemistry , engineering
Abstract Crosslinked polyacrylamide beads were irradiated in air with a Co 60 γ‐radiation source. The preirradiated beads were graft‐copolymerized through heating with 4‐vinylpyridine in the presence of benzoyl peroxide. Grafting was studied as a function of various reaction parameters and was determined from the increase in the weight of the original polymer and the estimation of pyridine pendants in the homopolymer‐free graft copolymer. Although making the polymer basic in character, this modification retained the hydrophilic nature of polyacrylamide. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 2613–2620, 2002