TY  - JOUR
TI  - Preparation, assessment, and swelling study of amphiphilic acrylic acid/chitosan-based
semi-interpenetrating hydrogels
AB  - The aim of this study was to synthesize amphiphilic semi-IPN hydrogels based on acrylic acid (AA) and chitosan (CS) using AIBN as an initiator and N,N’methylene bis acrylamide as a crosslinking agent. The swelling behavior of the hydrogels was evaluated at a variety of pH values, temperature, the salinity of media and time, and the swelling mechanism was investigated using Fickian diffusion and Schott’s 2nd-order-kinetics models. FTIR spectroscopy was used to confirm the synthesis of AA/CS hydrogel. The swelling results showed that, in the acidic media, as the CS content increase the hydrogel swelling ratio reduces. It was found that the maximum swelling ratio (8550%) is attained for the sample HAC2 with an AA/CS ratio of 1:0.001 in the alkaline Ph value. It also revealed that the absorption capacity is directly dependent on the temperature and inversely related to the salt concentration. Besides, the absorption capacity of the synthesized hydrogels in the saline solution of $Na_2 SO_4$ was higher than NaCl.
AU  - ZIAEE, Farshid
AU  - MIRTALEB, Fakhrosadat
AU  - AZAR, Amir SEPEHRIAN
AU  - jozaghkar, mohammad reza
DO  - 10.3906/kim-2109-50
PY  - 2022
JO  - Turkish Journal of Chemistry
VL  - 46
IS  - 2
SN  - 1300-0527
SP  - 499
EP  - 505
DB  - TRDizin
UR  - http://search/yayin/detay/530581
ER  -