Preparation, Assessment, and Swelling Study of Amphiphilic Acrylic Acid/chitosan-based Semi-interpenetrating Hydrogels

Overview

Journal Turk J Chem

Publisher Scientific and Technological Research Council of Turkey

Date 2023 Dec 25

PMID 38143467

Authors

Mohammad Reza Jozaghkar

Amir Sepehrian Azar

Farshid Ziaee

Fakhrosadat Mirtaleb

Affiliations

Soon will be listed here.

Abstract

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 NaSO was higher than NaCl.

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