Open AccessSynthesis and Characterization of Chemically Cross-Linked CMC/Acrylamide Hydrogels
Author(s) -
Shivakumara Lachakkal Rudrappa,
Sudhir Iliger,
T. Demappa
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22540
Subject(s) - self healing hydrogels , chemistry , swelling , ammonium persulfate , acrylamide , carboxymethyl cellulose , cationic polymerization , nuclear chemistry , polymer chemistry , fourier transform infrared spectroscopy , aluminium sulfate , sulfate , chemical engineering , sodium , copolymer , organic chemistry , polymer , engineering , polymerization
Carboxymethyl cellulose/poly(acrylamide) (CMC/Amm) hydrogels were synthesized by the chemicalcross-linking method. Ammonium persulfate used as an initiator, while aluminium sulfate used as across-linking agent. The structure and morphology of the hydrogels were characterized by FTIR andscanning electron microscopy (SEM) analysis. The swelling behaviour of the hydrogels can be studiedby using acids (CH3COOH, HCl and HClO4) and also in the pH of the buffer solutions at differenttemperature (room temperature, 30 and 37 ºC) was studied. Swelling of hydrogels increased with anincrease in the concentration of aluminum sulfate up to 20 %, above 20 % it has found to be decreased.The effect of four series of cationic different concentrated salt solutions on the swelling had found tobe the following order K+ > Na+ > Ca2+ > Mg2+.