In this research, two series of smart semi-interpenetrating polymer network (semi-IPN) hydrogels based on N-isopropyl acrylamide (NIPAM) and 2-hydroxyethyl methacrylate (HEMA), including linear p(NIPAM-co-HEMA)/pNIPAM (S1-structure) and linear pNIPAM/p(NIPAM-co-HEMA) (S2-structure) were synthesized and investigated. The morphological, chemical, physical properties and swelling behaviors in water of the linear polymer and semi-IPN hydrogels were investigated. |