Antibacterial SAP Preparation via Ion Exchange Reaction

A series of superabsorbent polymer (SAPs) with antibacterial activity were synthesized by an ion exchange reaction. Cetyltrimethylammonium bromide (CTAB) was used for modifying a typical crosslinked poly(sodium acrylate-acrylic acid) sample. The influence of introduction of CTAB on the free-absorbency, absorbency under load (AUL; measured in 0.9 wt% NaCl aqueous solution), and antibacterial activity of SAPs were investigated. The modified samples exhibited improved absorbency in deionized water as well as developed AUL values. Moreover, the absorbency of superabsorbents was increased by increasing CTAB concentration. These results can be taken as promising practical steps toward ideal SAPs for hygienic applications

کلیدواژه ها:

superabsorbent ، hydrogel ، antibacterial modification ، ion exchange ، water absorbency