Development and characterization of poly(vinylidene fluoride)–poly(acrylic acid) pore-filled pH-sensitive membranes

Pore-filled pH-sensitive membranes were developed by in situ cross-linking poly(acrylic acid) inside poly(vinylidene fluoride) hydrophobic microporous substrate membranes. The incorporation of the poly(acrylic acid) gel, expressed as membrane mass gain, increased with the monomer concentration in polymerization solution and the amount of cross-linking degree. By the incorporation of the poly(acrylic acid) gel, the membrane performance was …