6 documents found, page 1 of 1
Thermochromic poly(L-lactic acid) based materials and their printability on dif...
Cruz, B. D. D.; Silva, I. R.; Pereira, N.; Fernandes, L. C.; Tubio, C. R.; Tariq, M.; Esperança, J. M. S. S.; Botelho, Gabriela; Lanceros-Méndez, S.Ionic liquids (ILs) have been combined with different polymer matrixes to develop smart and functional mate rials. Due to their versatility, hybrid materials with specific tailor made properties can be obtained, including printable thermochromic materials, with a strong potential for sensing applications. In this context, the thermochromic IL bis(1-butyl-3-methylimidazolium) tetrachloronickelate ([Bmim]2[ NiCl4...
Printable ionic liquid modified cellulose acetate for sustainable chromic and r...
Cruz, B. D. D.; Castro, A. S.; Fernandes, L. C.; Pereira, N.; Mendes-Felipe, C.; Tariq, M.; Esperança, J. M. S. S.; Martins, P. M.; Lanceros-Méndez, S.Sustainable technologies and the circular economy paradigms require a reduction of waste, and therefore, research is focusing on the development of sustainable materials and devices capable of being reused, refurbished or recycled. In the present work, printable ionic liquid (IL)-based polymer composites with thermochromic properties have been developed through a more sustainable approach to mitigate the negati...
Photocurable temperature activated humidity hybrid sensing materials for multif...
Mendes-Felipe, C.; Salado, M.; Fernandes, L. C.; Correia, Daniela Maria Silva; Ruiz-Rubio, L.; Tariq, M.; Esperança, J. M. S. S.; Vilas-Vilela, J. L.Photocurable thermochromic and humidity responsive materials based on polyurethane acrylated (PUA) and bis(1-butyl-3-methylimidazolium) tetrachloronickelate ([Bmim]2[NiCl4]) ionic liquid (IL) have been prepared with varying IL content up to 40 wt% within the polymer matrix. The influence of IL content on the photopolymerization process, morphology, Young modulus and electrical conductivity of the materials was ...
Magnetic ionic liquid/polymer composites: Tailoring physico-chemical properties...
Correia, Daniela Maria Silva; Fernandes, L. C.,; García-Astrain, C.,; Tariq, M.; Esperança, J. M. S. S.,; de Zea Bermudez, V.; Lanceros-Méndez, S.This works reports on the development of magnetic composites based on the magnetic ionic liquid (MIL) 1-butyl-3-methylimidazolium tetrachloroferrate, ([Bmim][FeCl4]) and the electroactive polymer poly(vinylidene fluoride-trifluorethylene) (P(VDF-TrFE)). The composites were obtained at different solvent evaporation temperatures (≈25, 90 and 210 °C) and with different MIL contents (10, 20 and 40 wt%). It was conc...
Ionic-liquid-based printable materials for thermochromic and thermoresistive ap...
Fernandes, L. C.; Correia, Daniela Maria Silva; García-Astrain, C.; Pereira, N.; Tariq, M.; Esperança, J. M. S. S.; Lanceros-Méndez, S.Smart materials exhibiting thermochromic and themoresistive properties based on the electroactive polymer poly(vinylidene fluoride) (PVDF) and the ionic liquid (IL) bis(1-butyl-3-methylimidazolium) tetrachloronickelate ([Bmim](2)[NiCl4]) have been developed with different contents of [Bmim](2)[NiCl4] (10, 20, and 40 wt %) within the polymer matrix. The morphology of the composites is studied, and the thermochro...
Low-field giant magneto-ionic response in polymer-based nanocomposites
Correia, Daniela Maria Silva; Martins, Pedro Libânio Abreu; Tariq, M.; Esperança, J. M. S. S.; Lanceros-Méndez, S.The future of magnetoelectric (ME) materials is closely linked to the optimization of the ME response on nanocomposites or to the introduction of new effects to achieve higher ME performance from low magnetic fields. Here, we report a P(VDF-TrFE)/[C4mim][FeCl4] nanocomposite with a magneto-ionic response that produces giant magnetoelectric coefficients up to ≈10 V cm-1Oe-1. This response comprises a magneticall...