Swelling Behaviour of pH-Sensitive Crosslinked Poly (Vinyl Acetate Co-Acrylic Acid) Hydrogels for Site Specific Drug Delivery

The present work was undertaken to combine nonionic vinyl acetate (VAC) with anionic acrylic acid (AA) or methacrylic acid (MAA) monomers in the presence of ethylen glycol dimethacrylate (EGDMA) as crosslinking agent through radical polymerization