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Micro and nano smart composite films based on copper-iodine coordination polymer as thermochromic biocompatible sensors

AuthorsConesa-Egea, Javier; Moreno-Vázquez, Alberto; Fernández-Moreira, Vanesa ; Ballesteros, Yolanda; Castellanos, Milagros; Zamora, Félix; Amo-Ochoa, Pilar
Keywordscoordination polymers
smart materials
functional composites
flexible composites
stimuli-responsive materials
Issue Date15-Jun-2019
PublisherMultidisciplinary Digital Publishing Institute
CitationPolymers 11(6): 1047 (2019)
AbstractHerein is presented the preparation and characterization of a composite material obtained by the combination of nanosheets of a coordination polymer (CP) based on the copper(I)-I double chain with response to temperature and pressure with polylactic acid (PLA) as biodegradable organic matrix. The new films of composite materials are generated using a simple and low-cost method and can be created with long lateral dimensions and thicknesses ranging from a few microns to a few nanometers. Studies show that the new material maintains the optical response versus the temperature, while the elasticity and flexibility of the PLA totally quenches the response to pressure previously observed for the CP. This new material can act as a reversible sensor at low temperatures, thanks to the flexibility of the copper(I)-iodine chain that conforms the CP. The addition of CP to the PLA matrix reduces the elastic modulus and ultimate elongation of the organic matrix, although it does not reduce its tensile strength.
Publisher version (URL)http://doi.org/10.3390/polym11061047
Identifiersdoi: 10.3390/polym11061047
e-issn: 2073-4360
Appears in Collections:(CNB) Artículos
(ISQCH) Artículos
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