doi:10.1021/acsami.6b13315engKallem, P.Eguizabal, A.Mallada, R.Pina, M. P.Constructing Straight Polyionic Liquid Microchannels for Fast Anhydrous Proton TransportART-2016-97872Polymeric ionic liquids (PILs) have triggered great interest as all solid-state flexible electrolytes because of safety and superior thermal, chemical, and electrochemical stability. It is of great importance to fabricate highly conductive electrolyte membranes capable to operate above 120 °C under anhydrous conditions and in the absence of mineral acids, without sacrificing the mechanical behavior. Herein, the diminished dimensional and mechanical stability of poly1-(3H-imidazolium)ethylene]bis(trifluoromethanesulfonyl)imide has been improved thanks to its infiltration on a polybenzimidale (PBI) support with specific pore architecture. Our innovative solution is based on the synergic combination of an emerging class of materials and sustainable large-scale manufacturing techniques (UV polymerization and replication by microtransfer-molding). Following this approach, the PIL plays the proton conduction role, and the PBI microsieve (SPBI) mainly provides the mechanical reinforcement. Among the resulting electrolyte membranes, conductivity values above 50 mS·cm-1 at 200 °C and 10.0 MPa as tensile stress are shown by straight microchannels of poly1-(3H-imidazolium)ethylene]bis(trifluoromethanesulfonyl)imide cross-linked with 1% of dyvinylbenzene embedded in a PBI microsieve with well-defined porosity (36%) and pore diameter (17 µm).2016http://zaguan.unizar.es/record/7724210.1021/acsami.6b13315http://zaguan.unizar.es/record/77242oai:zaguan.unizar.es:77242ACS Applied Materials & Interfaces 8, 51 (2016), 35377-35389by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess