7 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...
Photoluminescent ionic liquid-poly(vinylidene fluoride) hybrid materials for UV...
Cruz, B. D. D.; Pereira, N.; García Díez, Ander; Botelho, G.; Lanceros-Méndez, S.; Bermudez, V. de Zea; Correia, Daniela M.Smart multifunctional materials have been increasingly applied in different fields of knowledge. In particular, photoluminescent materials have been explored for displays, radiation detection, lamps or anti-counterfeiting applications, among others. This work reports the development of photoluminescent materials based on poly (vinylidene fluoride) (PVDF) polymer incorporating different contents (0, 5, 10, and 2...
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...
Photoluminescent alginate-based composite inks for anti-counterfeiting security...
Cruz, B. D. D.; Correia, Daniela M.; Polícia, R.; Pereira, N.; Nunes, P.; Fernandes, M.; Tubio, C. R.; Botelho, G.; Lanceros-Méndez, S.Natural polymers have been increasingly explored for a wide range of applications as smart materials due to their unique properties, abundance, and sustainability attributes. In the present work, novel luminescent composite films based on sodium alginate (SA) and different amounts of the compounds sodium tetra(2- thenoyltrifluoroacetonate)europate (III) (Na[Eu(tta)4]) (5, 10 and 20% wt.) and 1-butyl-3-methylimi...
Materiais fotoluminescentes imprimíveis para identificação e segurança
Cruz, B. D. D.Os materiais fotoluminescentes são um tipo de materiais inteligentes capazes de emitir luz através da absorção de radiação. Neste sentido, e uma vez que a contrafação a nível mundial tem vindo a aumentar, os materiais fotoluminescentes surgem como potencial solução para controlar este problema através do desenvolvimento de sistemas de contrafação mais eficientes, nomeadamente em identificação de objetos. No pre...
Erratum: Development of Poly(l-Lactic Acid)-Based Bending Actuators. Polymers 2...
Correia, Daniela M.; Fernandes, Liliana C.; Cruz, B. D. D.; Botelho, Gabriela; Bermudez, Verónica de Zea; Lanceros-Méndez, S.The authors wish to make a change to their published paper [1]. In the original manuscript, there is a mistake in a sentence in Section 3.5, on page 10. Two words “anions and cations” were reverted by mistake. The corrected sentence is shown below: The strain developed as a response to the applied electrical field results from the diffusion of the ions and migration to the positive (anions) and negative (cation...
Development of poly(l-Lactic Acid)-based bending actuators
Correia, Daniela Maria Silva; Fernandes, Liliana C.; Cruz, B. D. D.; Botelho, Gabriela; de Zea Bermudez, Verónica; Lanceros-Méndez, S.This work reports on the development of bending actuators based on poly(<span style="font-variant: small-caps;">l</span>-lactic acid) (PLLA)/ionic liquid (IL) blends, through the incorporation of 40% wt. of the 1-ethyl-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Emim][TFSI]) IL. The films, obtained by solvent casting at room temperature and 50 °C, were subjected to several post-thermal treatments at 7...