RT info:eu-repo/semantics/article
T1 Nanoporous PMMA foams with templated pore size obtained by localized in situ synthesis of nanoparticles and CO2 foaming
A1 Pinto Sanz, Javier
A1 Morselli, Davide
A1 Bernardo García, Victoria
A1 Notario Collado, Belén
A1 Fragouli, Despina
A1 Rodríguez Pérez, Miguel Ángel
A1 Athanassiou, Athanassia
AB Polymer foams with controlled and templated pore size have been obtained for the first time by CO2 gasdissolution foaming from poly(methyl methacrylate) (PMMA) films. This kind of materials, with a variableporous structure, mimic some high-performance natural materials and could present significantinterest in many applications. However, up to now their controlled fabrication has not been successfullyachieved. Herein, we present a method to achieve a fine control in the production of such materials.Thermal in situ synthesis of ZnO nanoparticles from Zn(OAc)2 was proposed to obtain PMMA nanocomposites,in which the ZnO nanoparticles induce heterogeneous nucleation that leads to formation ofpores with size below the micron, upon CO2 foaming. Starting from templated solid PMMA samples withwell-differentiated regions, presenting or not ZnO nanoparticles, it was possible to obtain PMMA-basedfoams with well-defined areas of different pore sizes.
PB Elsevier
YR 2017
FD 2017
LK http://uvadoc.uva.es/handle/10324/25880
UL http://uvadoc.uva.es/handle/10324/25880
LA eng
NO Polymer 124 (2017) 176-185
NO Producción Científica
DS UVaDOC
RD 04-nov-2024