Examinar por departamento (cas.) "Polímeros y Materiales Avanzados: Física, Química y Tecnología"
Now showing items 21-40 of 414
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All-Polymer Nanocomposite as Salt-Free Solid Electrolyte for Lithium Metal Batteries
(ACS, 2024-01)Solid polymer electrolytes that combine both a high lithium-ion transference number and mechanical properties at high temperatures are searched for improving the performance of batteries. Here, we show a salt-free all-polymer ... -
Amphiphilic Single-Chain Polymer Nanoparticles as Imaging and Far-Red Photokilling Agents for Photodynamic Therapy in Zebrafish Embryo Xenografts
(Wiley, 2024-11)This work introduces rationally designed, improved amphiphilic single-chain polymer nanoparticles (SCNPs) for imaging and photodynamic therapy (PDT) in zebrafish embryo xenografts. SCNPs are ultrasmall polymeric nanoparticles ... -
Anodic and Cathodic Platinum Dissolution Processes Involve Different Oxide Species
(Wiley, 2023-08)The degradation of Pt-containing oxygen reduction catalysts for fuel cell applications is strongly linked to the electrochemical surface oxidation and reduction of Pt. Here, we study the surface restructuring and Pt ... -
Anomalous Magnetic Anisotropy Behaviour in Co-Rich and Fe-Rich Glass-Coated Microwires under Applied Stress
(MDPI, 2023-09-25)In this article, we study the effect of annealing temperature and applied stress on the magnetic properties of Fe71.80B13.27Si11.02Nb2.99Ni0.92 and Co65.34Si12.00B10.20Cr8.48Fe3.90Mo0.08 microwires. An anomalous behavior ... -
Anomalous magnetic behavior in half-metallic Heusler Co2FeSi alloy glass-coated microwires with high Curie temperature
(Elsevier, 2022-11)In the current study, we have succeeded to fabricate Co2FeSi Heusler alloy glass-covered microwires with magnetic core nucleus diameter d = 4.36 mu m and total diameter D = 17.55 mu m, with high Curie temperature (T-e > ... -
Application of TGA/FTIR to the study of the thermal degradation mechanism of silanized poly(ether-urethanes)
(Elsevier, 2012-06-26)TGA/FTIR was employed to investigate the thermal degradation mechanism of two types of self-curable Polyurethanes obtained from isophorone diisocyanate (IPDI), Poly(propyleneglycol) (PPG), and (trime- thoxysilyl) propyl ... -
Are ionic liquids effective curing agents for preparing epoxy adhesives?
(Elsevier, 2023-07)This work compares for the first time the efficacy of using different ionic liquids (ILs) as epoxy hardeners in epoxy-based adhesives. Several phosphonium and imidazolium-based ionic liquids were tested as epoxy hardeners, ... -
Aromatic diselenide crosslinkers to enhance the reprocessability and self-healing of polyurethane thermosets
(RSC, 2017-05-22)Dynamic structures containing polymers are considered a new class of polymeric materials with very attractive properties, since they can behave as thermosets at room temperature but at the same time they can be reprocessed ... -
Artificial Photosynthases: Single-Chain Nanoparticles with Manifold Visible-Light Photocatalytic Activity for Challenging “in Water” Organic Reactions
(ACS, 2024-04)Photocatalyzed reactions of organic substances in aqueous media are challenging transformations, often because of scarce solubility of substrates and catalyst deactivation. Herein, we report single-chain nanoparticles, ... -
Atomic and molecular structures on a superconducting surface
(2023-05-04)This Ph. D. thesis studies the physical properties of magnetic impurities and spin chains on s-wavesuperconductors. This is an important field of research that has acquired particular importance in recentyears thanks to ... -
Atomistic molecular simulations of Aβ-Zn conformational ensembles
(Wiley, 2024-01)The amyloid-forming Aβ peptide is able to interact with metal cations to form very stable complexes that influence fibril formation and contribute to the onset of Alzheimer's disease. Multiple structures of peptides derived ... -
Attaining Toughness and Reduced Electrical Percolation Thresholds in Bio-Based PA410 by Combined Addition of Bio-Based Thermoplastic Elastomers and CNTs
(MDPI, 2021-09-05)Multi-walled carbon nanotubes (CNTs) were added to provide electrical conductivity to bio-based polymer blends with improved toughness (based on commercially available Pebax thermoplastic elastomers and bio-based polyamide ... -
Aufbau principle and singlet-triplet gap in spherical Hooke atoms
(Wiley, 2023-02)Singlet and triplet spin state energies for three-dimensional Hooke atoms, that is, electrons in a quadratic confinement, with even number of electrons (2, 4, 6, 8, 10) is discussed using Full-CI and CASSCF type wavefunctions ... -
Bio-based non-isocyanate poly(hydroxy urethane)s (PHU) derived from vanillin and CO2
(Royal Society of Chemistry, 2023-06)As an alternative to the use of hazardous phosgene-based isocyanates for polyurethane preparation, non-isocyanate poly(hydroxy urethanes) (PHU) based on 5-membered cyclic carbonates have been developed. However, to date, ... -
Bio-Based Phosphate-Containing Polyester for Improvement of Fire Reaction in Wooden Particleboard
(MDPI, 2023-02-22)A new phosphate-containing bio-polyester based on glycerol and citric acid was synthesized and evaluated as fire-retardant (FR) in wooden particleboards. Phosphorus pentoxide was used to first introduce phosphate esters ... -
Biodegradable polyesters with potential applications in 3D printing: structure, morphology and crystallization
(2023-10-09)En este trabajo se han estudiado varios sistemas basados en poliésteres con el objetivo de ampliar su conocimiento y difundir su uso. La familia de poliésteres más investigada en esta tesis es la de los polihidroxialcanoatos ... -
Blends of biodegradable poly(butylene adipate-co-terephthalate) with poly(hydroxi amino ether) for packaging applications: Miscibility, rheology and transport properties
(Elsevier, 2018-08)The improvement of the properties of biodegradable poly(butylene adipate-co-terephthalate) (PBAT) through the addition of poly(hydroxi amino ether) (PHAE) is investigated. Analysis by means of DSC, DMTA, FTIR and TEM ... -
Boosting the Reactivity of Bis-Lactones to Enable Step-Growth Polymerization at Room Temperature
(ACS, 2024-03)The development of new sustainable polymeric materials endowed with improved performances but minimal environmental impact is a major concern, with polyesters as primary targets. Lactones are key monomers thanks to ... -
Building machine learning assisted phase diagrams: Three chemically relevant examples
(AIP, 2022-07)In this work, we present a systematic procedure to build phase diagrams for chemically relevant properties by the use of a semi-supervised machine learning technique called uncertainty sampling. Concretely, we focus on ... -
Can aluminum, a non-redox metal, alter the thermodynamics of key biological redox processes? The DPPH-QH2 radical scavenging reaction as a test case
(Elsevier, 2022-02-01)[EN] The increased bioavailability of aluminum has led to a concern about its toxicity on living systems. Among the most important toxic effects, it has been proven that aluminum increases oxidative stress in biological ...