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Block copolymers self-assembly allows obtaining tunable micro or nanoporous membranes or depth filters based on PMMA; fabrication method and nanostructures

AuthorsPinto, Javier; Rodríguez-Pérez, Miguel A.; García García, Ricardo
Issue Date2014
PublisherAmerican Chemical Society
CitationJournal of Physical Chemistry C 118: 4656- 4663 (2014)
AbstractAn environmentally friendly method to produce tunable bulk micro or nanoporous structures is presented. Nano- and micro-porous structures are obtained by gas dissolution foaming using CO2, following the pattern of polymer blends between poly(methylmethacrylate) (PMMA) and a triblock copolymer, namely poly(methylmethacrylate)-co-poly(butyl acrylate)-co- poly(methyl methacrylate) (MAM) blends nanostructuration. Membranes or depth filters can be produced by this method, varying the amount of the triblock copolymer in the blend. Furthermore, main characteristics, such as the average pore size and porosity can be finely tuned by adjusting the process parameters (temperature or pressure) during gas foaming. © 2014 American Chemical Society.
Identifiersdoi: 10.1021/jp409803u
issn: 1932-7447
e-issn: 1932-7455
Appears in Collections:(ICMM) Artículos
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