Preparation of thermally sensitive poly[N-isopropylacrylamide-co-(maleic acid)] hydrogel membrane by electrospinning using a green solvent

Green Chemistry Letters and Reviews

Amornrat Saithongdee¹ 

关键词: hydrogel;    electrospinning;    green solvent;    nanofiber;    poly(N-isopropylacrylamide);   

DOI  :  10.1080/17518253.2014.923519

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

Poly[N-isopropylacrylamide-co-(maleic acid)], poly(NIPA-co-MA), was synthesized by radical polymerization in an aqueous solution composing of 35% mol N-isopropylacrylamide/maleic acid. Poly(NIPA-co-MA) hydrogel nanofibrous membrane was fabricated by electrospinning using ethanol as solvent. The electrospun nanofibers were cross-linked using diethylene glycol as cross-linker, followed by a heat-induced esterification reaction at 145°C. The average diameter of electrospun fibers was 117 ± 33 nm. The hydrogel membrane exhibited a temperature sensitive property. Its minimum and maximum water absorption ratios were 4 ± 0 g g−1 at 50°C and 17 ± 4 g g−1 at 34°C, respectively. An equilibrium swelling state of the electrospun membrane was reached within 5 min.

【 授权许可】

Unknown