简介概要

Preparation, Swelling and Antibacterial Behaviors of N-Succinyl Chitosan-g-Poly(Acrylic Acid-co-Acrylamide) Superabsorbent Hydrogels

来源期刊:Journal Of Wuhan University Of Technology Materials Science Edition2017年第4期

论文作者:何广华 KE Wanwan LIU Liang LI Ya 郑化 YIN Yihua YI Ying

文章页码:963 - 970

摘    要:Superabsorbent hydrogels were prepared successfully from N-succinyl chitosan grafted poly(acrylic acid-co-acrylamide). The potassium persulfate(KPS), N, N’-methylenebisacrylamide(MBA) were used as the initiator and crosslinker, respectively. Fourier transform infrared spectroscopy(FTIR) and scanning electron microscopy(SEM) were used to confirm the porous network structure of superabsorbent hydrogel. The effects of reaction parameters on the swelling behaviors of the superabsorbent hydrogels were investigated. The results indicated that water absorbency increased first, and then decreased gradually with the increase in the contents of monomer(AA+AM), KPS, MBA or acrylamide. The product had excellent water absorbency of 1375 g/g in distilled water and 83 g/g in 0.9wt% NaCl solution. Simultaneously, the superabsorbent hydrogels were p H sensitive. The antibacterial activities of the hydrogels against Escherichia coli(E. coli) were improved effectively because of polyamidoamine(PAMAM) dendrimer absorbed in the hydrogels.

详情信息展示

Preparation, Swelling and Antibacterial Behaviors of N-Succinyl Chitosan-g-Poly(Acrylic Acid-co-Acrylamide) Superabsorbent Hydrogels

何广华,KE Wanwan,LIU Liang,LI Ya,郑化,YIN Yihua,YI Ying

School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology

摘 要:Superabsorbent hydrogels were prepared successfully from N-succinyl chitosan grafted poly(acrylic acid-co-acrylamide). The potassium persulfate(KPS), N, N’-methylenebisacrylamide(MBA) were used as the initiator and crosslinker, respectively. Fourier transform infrared spectroscopy(FTIR) and scanning electron microscopy(SEM) were used to confirm the porous network structure of superabsorbent hydrogel. The effects of reaction parameters on the swelling behaviors of the superabsorbent hydrogels were investigated. The results indicated that water absorbency increased first, and then decreased gradually with the increase in the contents of monomer(AA+AM), KPS, MBA or acrylamide. The product had excellent water absorbency of 1375 g/g in distilled water and 83 g/g in 0.9wt% NaCl solution. Simultaneously, the superabsorbent hydrogels were p H sensitive. The antibacterial activities of the hydrogels against Escherichia coli(E. coli) were improved effectively because of polyamidoamine(PAMAM) dendrimer absorbed in the hydrogels.

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