Search
Now showing items 391-400 of 411
Reversible optical storage properties of nanostructured epoxy-based thermosets modified with azobenzene units
(ACS, 2011-11-22)
Azo-containing polymers are of particular interest in the design of materials for applications in optical recording. The aim of this contribution was the synthesis and characterization of optically active epoxy-based ...
Enhanced stability of photo-induced anisotropy due to intermolecular interactions in an azo-prepolymer confined in block copolymer
(Elsevier, 2013-02-08)
Many efforts in the field of azobenzene-containing polymers are concentrated on exploring new material concepts to obtain efficient and stable photo-induced anisotropy. Here, an easy approach to improve the birefringent ...
Thermo-responsive properties of self-healable thermosets based on epoxidized soybean oil
(Elsevier, 2024-01-26)
In this work, epoxidized soybean oil (ESO) based thermosetting materials cured with citric acid (CA) and modified with low molecular weight 4′-(hexyloxy)-4-biphenyl-carbonitrile (HOBC) nematic liquid crystal were synthesised ...
Modelización fotoquímica optimizada aplicada a la comprensión de los episodos de ozono troposférico en el Atlántico-Sur europeo
(2021-07-07)
Más del 98% de la población europea está expuesta a niveles nocivos de ozono troposférico según la OMS. En el Sur de Europa, la situación es todavía más grave debido a que, las mayores temperaturas y horas de luz solar que ...
Effect of Different Compatibilizers on the Properties of Green Low-Density Polyethylene Composites Reinforced with Bambusa Vulgaris Bamboo Fibers
(MDPI, 2024-06-21)
Low-density green polyethylene (LDGPE) composites reinforced with 5 wt% of bamboo fiber and 3 wt% of a compatibilizing agent (polyethylene grafted with maleic anhydride and tannin) were processed through extrusion and ...
Elaboration of Thermally Performing Polyurethane Foams, Based on Biopolyols, with Thermal Insulating Applications
(MDPI, 2024-01-16)
In this work, biobased rigid polyurethane foams (PUFs) were developed with the aim of achieving thermal and fireproofing properties that can compete with those of the commercially available products. First, the synthesis ...
Integrated hydrometallurgical process for Paval valorization.
(2020-11-12)
Esta tesis doctoral propone un proceso integrado para la valorización de residuos de la producción secundaria de aluminio (Paval de escoria salina) a través de la reducción de su contenido en flúor y minimizando la consecuente ...
Modelización y Optimización de SUDS Como Apoyo a la Toma de Decisiones
(2023-04-28)
La presente tesis tuvo el objetivo principal de plantear un esquema metodológico de modelización de los SUDS, a partir del cual se pudiera aportar de manera sistemática a la toma de decisiones en proyectos de drenaje urbano. ...
Chitosan–Chitin Nanocrystal Films from Lobster and Spider Crab: Properties and Environmental Sustainability
(ACS, 2024-06)
The valorization of chitinous biomass from underutilized renewable carbon feedstock offers alternative routes for bioproduct development, reducing our dependence on nonrenewable and nonbiodegradable materials composed of ...
Influence of Feedstock Particle Size on the Certain Determination of Chlorine and Bromine in Pyrolysis Oils from Waste Electrical and Electronic Equipment Plastics
(ACS, 2024-07)
Rejected streams emerging from waste sorting and recycling plants are still capable of being valorized by unconventional recycling routes. This is the case of the plastic-rich fraction generated after the treatment of waste ...