Multifunctional shape-memory foams with highly tunable properties via organo-phase cryo-polymerization

摘要: Polymer foams with interconnected open macropores have been widely utilized in industry and our daily lives. Cryopolymerization is a simple yet efficient method to prepare porous materials. However, most cases, this technique was used an aqueous phase synthesize macroporous hydrogels; moreover, diversity these materials needs be further developed achieve multi-functionality. In study, we present organo-phase cryopolymerization as facile general acrylate-based shape-memory controllable pore architecture highly tunable properties including thermomechanical behavior swelling capability. Pore orientation porosity can also controlled through manipulating the conditions of such freezing routes monomer concentrations. By varying compositions (methyl methacrylate/butyl acrylate), transition temperature (Tg from approximately −43 °C 123 °C) were obtained. Amongst various potential applications, demonstrated that programmed into rather compact form expand only during solvent absorption process allow simultaneous fast large absorption, advantage over intrinsic bulkiness classical absorbents. Poly(lauryl methacrylate) foam prepared, which enabled solvents gasoline (ADf = 10.2 g g−1).