Premium
Synthesis and study of superabsorbent properties of acryloylated starch ester grafted with acrylic acid
Author(s) -
Mohammed Aliyu D.,
Young Desmond A.,
Vosloo Hermanus C. M.
Publication year - 2014
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201300174
Subject(s) - acrylic acid , superabsorbent polymer , starch , polymer chemistry , chemistry , organic chemistry , copolymer , polymer
A superabsorbent polymer has been prepared by acryloylation of starch followed by grafting with acrylic acid (AA) using Fenton's initiation system (Fe 2+ /H 2 O 2 ). Fourier‐transform infrared spectroscopy (FTIR) analyses provided evidence for starch ester formation and grafting of AA onto its backbone. Further characterization of the product was carried out using XRD, SEM and thermogravimetric (TGA) techniques. The product, which has a low yield of homopolymer and exhibits more adhesive and film forming properties than the direct method of grafting AA onto starch, was used for water absorption analysis. The neutralized product showed a remarkable water absorption capacity (127 g/g) much higher than the polymer synthezised from direct grafting.