Química Polímeros 2-(diisoproylamino)ethyl methacrylate 2-hydroxyethyl methacrylate Captación de metales pesados Ciencias Agrarias Ciencias Exactas Drug delivery Drug delivery systems Farmacología Functional polymers Heavy metal uptake, polyurethane/poly(2-diethylamine)ethyl methacrylate pH-responsive hybrids Híbridos pH-responsivos de poliuretano/poli(2-dietilamino)etil metacrilato Liberación controlada de fármacos Metales Pesados Nanocomposites, Polyurethane/nanosilica, Waterborne dispersions Polymeric hybrid materials, Polyurethanes, poly(N,N-diethylaminoethyl methacrylate), Stimuli-sensitive polymers, Drug delivery systems, Films Polímeros funcionales Smart polymers Smart polymers; 2-hydroxyethyl methacrylate; 2-(diisoproylamino)ethyl 36 methacrylate; pH-sensitive hydrogels; drug delivery systems apuntalantes drug-delivery systems; PUs; stimuli-sensitive polymers; swelling hidrogeles híbridos poliuretano/acrílico liberación controlada de principios activos materiales pH-sensitive hydrogels polímeros