Envíos recientes

  • Epoxy-thiol systems filled with boron nitride for high thermal conductivity applications 

    Hutchinson, John M.; Román Concha, Frida Rosario; Folch, Adrià (2018-03-20)
    Artículo
    Acceso abierto
    An epoxy-thiol system filled with boron nitride (BN), in the form of 80 µm agglomerates, has been investigated with a view to achieving enhanced thermal conductivity. The effect of BN content on the cure reaction kinetics ...
  • Preparation and characterization of dual-curable off-stoichiometric amine-epoxy thermosets with latent reactivity 

    Konuray, Ali Osman; Areny, Núria; Morancho Llena, José María; Fernández Francos, Xavier; Serra Albet, Maria Àngels; Ramis Juan, Xavier (Elsevier, 2018-06-20)
    Artículo
    Acceso restringido por política de la editorial
    A new family of dual-curable poly(hydroxyamine)-poly(ether) thermosets based on off-stoichiometric amine-epoxy formulations has been prepared and characterized. The first curing stage was a selflimiting click epoxy-amine ...
  • Curing of off-stoichiometric amine–epoxy thermosets 

    Morancho Llena, José María; Ramis Juan, Xavier; Fernández Francos, Xavier; Salla Tarragó, José María; Konuray, Ali Osman; Serra Albet, Maria Àngels (Springer, 2018-07)
    Artículo
    Acceso restringido por política de la editorial
    The kinetics of the epoxy–amine polycondensation and the epoxy homopolymerization in off-stoichiometric epoxy/amine formulations with excess of epoxy groups, and in the presence of an anionic initiator have been investigated. ...
  • New allyl-functional catalytic comonomers for sequential thiol-Michael and radical thiol-ene reactions 

    Konuray, Ali Osman; Fernández Francos, Xavier; Ramis Juan, Xavier; Serra Albet, Maria Àngels (Elsevier, 2018-02-28)
    Artículo
    Acceso restringido por política de la editorial
    Soft poly(thioether) thermosets have been synthesized by employing a two-step curing procedure based on click chemistry. The first stage of curing is a thiol-Michael addition between acrylates (or methacrylates) and thiols ...
  • Thermoconductive thermosetting composites based on boron nitride fillers and thiol-epoxy matrices 

    Isarn, Isaac; Ramis Juan, Xavier; Ferrando Piera, Francesc; Serra Albet, Maria Àngels (2018-03-07)
    Artículo
    Acceso abierto
    In this work, the effect of the addition of boron nitride (BN) fillers in a thiol-cycloaliphatic epoxy formulation has been investigated. Calorimetric studies put into evidence that the kinetics of the curing has been ...
  • State of the art in dual-curing acrylate systems 

    Konuray, Ali Osman; Fernández Francos, Xavier; Ramis Juan, Xavier; Serra Albet, Maria Àngels (2018-02-12)
    Artículo
    Acceso abierto
    Acrylate chemistry has found widespread use in dual-curing systems over the years. Acrylates are cheap, easily handled and versatile monomers that can undergo facile chain-wise or step-wise polymerization reactions that ...
  • Study of hyperbranched poly(ethyleneimine) polymers of different molecular weight and their interaction with epoxy resin 

    Román Concha, Frida Rosario; Colomer Vilanova, Pere; Calventus Solé, Yolanda; Hutchinson, John M. (2018-03-09)
    Artículo
    Acceso abierto
    Two different commercial hyperbranched poly(ethyleneimine)s (HBPEI), with molecular weights (MW) of 800 and 25,000 g/mol, and denoted as PEI800 and PEI25000, respectively, as well as the mixtures with a Diglycidyl Ether ...
  • Physical aging of shape memory polymers based upon epoxy-thiol “click” systems 

    Hutchinson, John M.; Cortés Izquierdo, M. Pilar (Elsevier, 2018-02-01)
    Artículo
    Acceso restringido por política de la editorial
    The physical aging behaviour of two epoxy-thiol shape memory polymers has been studied: diglycidyl ether of bisphenol-A cross-linked with pentaerythritol tetrakis, denoted 4-thiol, with a calorimetric glass transition ...
  • Comparison of the nanostructure and mechanical performance of highly exfoliated epoxy-clay nanocomposites prepared by three different protocols 

    Shiravand, Fatemeh; Hutchinson, John M.; Calventus Solé, Yolanda; Ferrando Piera, Francesc (2014-05-30)
    Artículo
    Acceso abierto
    Three different protocols for the preparation of polymer layered silicate nanocomposites based upon a tri-functional epoxy resin, triglycidyl para-amino phenol (TGAP), have been compared in respect of the cure kinetics, ...
  • Optimisation procedure for additive manufacturing processes based on mask image projection to improve Z accuracy and resolution 

    Bonada Bo, Jordi; Muguruza Blanco, Asier; Fernández Francos, Xavier; Ramis Juan, Xavier (Elsevier Ltd, 2018-01-04)
    Artículo
    Acceso restringido por política de la editorial
    Mask image projection is an additive manufacturing (AM) technique used in photocurable materials which allows the simultaneous energy delivery in a whole area instead of a single spot. A common problem for this AM process ...
  • Epoxy composites filled with boron nitride and aluminum nitride for improved thermal conductivity 

    Hutchinson, John M.; Román Concha, Frida Rosario; Cortés Izquierdo, M. Pilar; Calventus Solé, Yolanda (2017-03-03)
    Artículo
    Acceso restringido por política de la editorial
    Epoxy composites containing boron nitride (BN) or aluminum nitride (AlN or Al2N3) particles have been studied with a view to obtaining increased thermal conductivity. The effect of these fillers on the cure reaction has ...
  • Synthesis and characterization of liquid-crystalline networks: toward autonomous shape-memory actuation 

    Belmonte Parra, Alberto; Cesare, Giuseppe Cesare; Gentile, Gennaro; Fernández Francos, Xavier; de la Flor1 López, Sílvia; Cerruti, Pierfrancesco; Ambrogi, Veronica (2017-10-12)
    Artículo
    Acceso restringido por política de la editorial
    In this paper, epoxy-based shape-memory liquid-crystalline lightly cross-linked networks (LCN) are synthesized and characterized with a view to the future development of two-way autonomous shape-memory actuators by coupling ...

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