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Partially hydrolyzed polyacrylamide–poly( N ‐vinylpyrrolidone) copolymers as superabsorbents synthesized by gamma irradiation
Author(s) -
Kiatkamjornwong Suda,
Suwanmala Phiriyathorn
Publication year - 1998
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(19980411)68:2<191::aid-app3>3.0.co;2-l
Subject(s) - polyacrylamide , copolymer , acrylamide , hydrolysis , monomer , polymer chemistry , n vinylpyrrolidone , absorption of water , polymerization , chemistry , grafting , materials science , nuclear chemistry , polymer , organic chemistry , composite material
Partially hydrolyzed polyacrylamide‐ co ‐poly( n ‐vinyl pyrrolidone) used as a superabsorbent was prepared from acrylamide monomers exposed to γ‐rays to become polyacrylamide that was subsequently partially hydrolyzed and was then copolymerized with n ‐vinylpyrrolidone to obtain a terpolymeric superabsorbent with a water retention value of 1100 times its dried weight. The total dose and dose rate along with the appropriate degree of hydrolysis were investigated for percentage conversion in each polymerization and the extent of water absorption. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68:191–203, 1998