Ara es mostren els items 28-47 de 68

  • Hybrid polythiophene-clay exfoliated nanocomposites for ultracapacitor devices 

    Aradilla Zapata, David; Azambuja, Denise S.; Estrany Coda, Francesc; Casas Becerra, María Teresa; Ferreira, Carlos A.; Alemán Llansó, Carlos (2012-06-14)
    Article
    Accés restringit per política de l'editorial
    Exfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) and montmorillonite (MMT) have been prepared by in situ anodic polymerization, concentrations of clay ranging from 5% w/w to 50% w/w being included ...
  • Hydrogen photoproduction from ethanol-water mixtures over Au-Cu alloy nanoparticles supported on TiO2 

    Bonmatí Lladó, Eduard; Casanovas Grau, Albert; Angurell Purroy, Inmaculada; Llorca Piqué, Jordi (2015-03-01)
    Article
    Accés obert
    Au/TiO2, Au0.75Cu0.25/TiO2, Au0.5Cu0.5/TiO2 and Au0.25Cu0.75/TiO2 photocatalysts prepared from pre-formed Au and Au-Cu alloy nanoparticles of controlled composition and size were loaded over ceramic honeycombs (2 mg cm(-2)) ...
  • Influence of polyhedral oligomeric silsesquioxanes on thermal and mechanical properties of melt-mixed poly(methyl methacrylate)/polyhedral oligomeric silsesquioxanes composites 

    Illescas Fernandez, Silvia; Arostegui, Asier (2014-05-03)
    Article
    Accés restringit per política de l'editorial
    In this study, the influence of the functionalization of fully or incomplete condensed polyhedral oligomeric silsesquioxanes composites (POSS) nanoparticles on the properties of poly(methyl methacrylate) (PMMA)-based ...
  • Influence of the isothermal cure temperature on the nanostructure and thermal properties of an epoxy layered silicate nanocomposite 

    Shiravand, Fatemeh; Hutchinson, John M.; Calventus Solé, Yolanda (2013-03-08)
    Article
    Accés restringit per política de l'editorial
    The cure kinetics of triglycidyl p-amino phenol (TGAP) epoxy resin with a diamine (4,4-diamino diphenyl sulphone [DDS]), reinforced with montmorillonite (MMT), has been studied by differential scanning calorimetry. The ...
  • Influencia del grafeno com nanoaditivo en una matriz de polipropileno 

    Perez Llanos, Germán Anibal (Universitat Politècnica de Catalunya, 2014-09)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    A partir de la posibilidad de disponer de grafeno puro, muchos centros de investigación han dedicado grandes esfuerzos a estudiar sus propiedades y desplegar el potencial que parece tener en diversos campos. Las propiedades ...
  • Intra- and extra-gallery reactions in tri-functional epoxy polymer layered silicate nanocomposites 

    Hutchinson, John M.; Shiravand, Fatemeh; Calventus Solé, Yolanda (2012-09-05)
    Article
    Accés restringit per política de l'editorial
    Achieving a high degree of exfoliation in epoxy-based polymer layered silicate (PLS) nanocomposites is crucial to their successful industrial application, but has hitherto proved elusive. In this work, a system is presented ...
  • Isocyanate toughening of pCBT/organoclay nanocomposites with exfoliated structure and enhanced mechanical properties 

    Abt, Tobias Martin; Bou Serra, Jordi; Sánchez Soto, Miguel (2014-12-01)
    Article
    Accés restringit per política de l'editorial
    Cyclic butylene terephthalate (CBT (R)) is an interesting matrix material for the preparation of nanocomposites due to its very low, water-like melt viscosity which favours clay exfoliation. Nevertheless, polymerized CBT ...
  • Isothermal curing of polymer layered silicate nanocomposites based upon epoxy resin by means of anionic homopolymerisation 

    Román Concha, Frida Rosario; Calventus Solé, Yolanda; Colomer Vilanova, Pere; Hutchinson, John M. (2013-12-20)
    Article
    Accés restringit per política de l'editorial
    The use of an initiator, 4-(dimethylamino) pyridine (DMAP), to promote an anionic homopolymerisation reaction for the isothermal cure of polymer layered silicate (PLS) nanocomposites based on an epoxy resin, as well as the ...
  • Laser heating and destruction of carbon nanotubes 

    Villà Montero, Marc (Universitat Politècnica de Catalunya / Luleå Tekniska Universitet, 2013)
    Treball Final de Grau
    Accés obert
    Realitzat a/amb: Luleå tekniska universitet
    Research on carbon materials is, nowadays, the most developed field within the nanotechnology. Graphene and carbon nanotubes (CNTs) are the materials studied the most in this domain due to their astonishing mechanical, ...
  • Micro-molding with ultrasonic vibration energy: New method to disperse nanoclays in polymer matrices 

    Planellas Oates, Marc; Sacristan, Matias; Rey, Lorena; Olmo, Cristian; Aymami Bofarull, Juan; Casas Becerra, María Teresa; Valle Mendoza, Luis Javier del; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2014-07)
    Article
    Accés restringit per política de l'editorial
    Ultrasound technology was proved as an efficient processing technique to obtain micro-molded specimens of polylactide (PLA) and polybutylene succinate (PBS), which were selected as examples of biodegradable polyesters ...
  • Micromoldeo mediante ultrasonidos. Encapsulación de fármacos y preparación de nanocompuestos 

    Rey Pérez, Lorena (Universitat Politècnica de Catalunya, 2013-10)
    Projecte/Treball Final de Carrera
    Accés obert
    En este Proyecto, se ha estudiado la aplicación de un nuevo sistema de micromoldeo mediante ultrasonidos, evaluando el efecto de diferentes condiciones de procesado en un material biodegradable, así como la incorporación ...
  • Microstructural characteristics of graphene/polycarbonate nanocomposite foams 

    Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Rende, Deniz; Schadler, Linda; Velasco Perero, José Ignacio; Ozisik, Rahmi (2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The microstructural characteristics of polycarbonate-graphene nanocomposite foams prepared using supercritical CO2 foaming are investigated using small and wide angle X-ray diffraction to understand the effect of graphene, ...
  • Millora de les propietats de films multicapa mitjançant la inclusió de Nanocompòsits de PA6 

    LLoret Fortuny, Elsa (Universitat Politècnica de Catalunya, 2013-09)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    L’aplicació de materials multicapa per l’envasament de productes ha representat un gran avenç pel que fa a la conservació d’aliments i a la seva acceptació per part del consumidor. Aquesta tecnologia permet allargar la ...
  • Molecular mobility in hyperbranched polymers and their interaction with an epoxy matrix 

    Román Concha, Frida Rosario; Colomer Vilanova, Pere; Calventus Solé, Yolanda; Hutchinson, John M. (2016-03-01)
    Article
    Accés obert
    The molecular mobility related to the glass transition and secondary relaxations in a hyperbranched polyethyleneimine, HBPEI, and its relaxation behaviour when incorporated into an epoxy resin matrix are investigated by ...
  • Morphology and thermomechanical properties of melt-mixed polyoxymethylene/polyhedral oligomeric silsesquioxane nanocomposites 

    Sánchez Soto, Miguel; Illescas Fernandez, Silvia; Milliman, Henry; Schiraldi, David A.; Arostegui, Asier (2010)
    Article
    Accés restringit per política de l'editorial
    The influence of the functionalization of fully condensed POSS cages on the properties of POMbased nanocomposites is studied. POSS with different organic substituents [glycidylethyl, aminopropylisobutyl, and poly(ethylene ...
  • Multicriteria value analysis for polymer composites selection in automotive applications 

    Carod de Arriba, Xavier; González Benítez, María Margarita (Asociación Española de Ingeniería de Proyectos (AEIPRO), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This study presents a tool for decision making called Multicriteria Value Analysis, used for selection of polymeric materials applied in automotive parts and components. The tool is built from the methodological framework ...
  • Multifunctional foams made of polymer nanocomposites 

    Arencón Osuna, David; Velasco Perero, José Ignacio; Realiño, Vera; Antunes, Marcelo de Sousa Pais; Gedler, Gabriel (Campus de Terrassa de la UPC, 2013-06-13)
    Text en actes de congrés
    Accés obert
  • Nanocharacterization techniques for investigating the durability of wood coatings 

    Vlad Cristea, Mirela; Riedl, Bernard; Blanchet, Pierre; Jiménez Piqué, Emilio (2012-03)
    Article
    Accés restringit per política de l'editorial
    Nanocharacterization techniques such as nanoindentation and atomic force microscopy were used to investigate the exterior durability of waterborne coatings improved with inorganic nanosized UV-absorbers. Nanocomposite ...
  • Nanocomposites of in-situ polymerized cyclic butylene terephthalate and polyhedral oligomeric silsesquioaxanes 

    Abt, Tobias Martin; Illescas Fernandez, Silvia; Antunes, Marcelo de Sousa Pais; Cáceres Moreno, María Angélica; Sánchez Soto, Miguel (2010-05-03)
    Text en actes de congrés
    Accés obert
    Nanocomposites were prepared by in-situ polymerization of CBT®, a cyclic form of poly(butylene terephthalate) (PBT) and polyhedral oligomeric silsesquioxane (POSS®) with 2.5, 5 and 10 wt% POSS content. Three different types ...
  • Nanocomposites of new biodegradable poliesters and polyesteramides 

    Puiggalí Bellalta, Jordi; Morales Gámez, Laura Teresa; Franco García, María Lourdes; Casas Becerra, María Teresa; Valle Mendoza, Luis Javier del; Rodríguez Galán, Rafael Alfonso (2011-03-16)
    Article
    Accés obert
    Polymers are easily prepared by bulk polycondensation based on metal-halide salt formation, while crystallization is strongly influenced by incorporation and distribution of silicate nanoparticles.