Thermo-sensitive swelling behavior of poly(2-ethyl-2-oxazoline)/poly(vinyl alcohol) interpenetrating polymer network hydrogels

Interpenetrating polymer network (IPN) hydrogels composed of poly(2-ethyl-2-oxazoline) (PEtOz) and poly(vinyl alcohol) (PVA) were prepared using radical polymerization. Swelling behavior of IPN hydrogels is observed at various pH conditions. The low critical solution temperature (LCST) behavior of PEtOz is measured with various composition bain. The properties of temperature-responsive IPN hydrogels are reported.