Temperature- and pH-sensitive membrane formed from blends of poly(vinylidene fluoride)-graft-poly(N-isopropylacrylamide) and poly(acrylic acid) microgels
作者： Xi Chen , Bowu Zhao , Peng Han , Weigui Fu , Li Chen
DOI: 10.1016/J.REACTFUNCTPOLYM.2014.08.005
关键词:
摘要: Temperature-and pH-responsive membranes prepared from blends of poly (vinylidene fluoride)-graft-poly (N-isopropylacrylamide)(PVDF-g-PNIPAM) copolymer and poly (acrylic acid)(PAA) microgels in N, N-dimethylformamide (DMF) solution by phase inversion method. PAA microgels help PNIPAM chains largely enrich onto membrane surface. Furthermore, adding PAA microgels increases the porous size, porosity and hydrophilic property of the blend membrane. The membranes show temperature-sensitivity between 30 and 35° C, and …
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