Articles producció científica> Química Analítica i Química Orgànica

Preparation and characterization of dual-curable off-stoichiometric amine-epoxy thermosets with latent reactivity

  • Datos identificativos

    Identificador: imarina:5132342
    Autores:
    Konuray O., Areny N., Morancho J., Fernández-Francos X., Serra À., Ramis X.
    Resumen:
    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 self-limiting click epoxy-amine polycondensation with an excess of epoxides and the second stage was an anionic homopolymerization of the unreacted epoxy groups, initiated by a latent base. The curing process was sequential with storage stable intermediate materials. The latency of these partially-cured intermediate materials was established not only by a thermally activated base generator, but also by the vitrification of the formulations. The intermediate and final materials exhibit a wide range of properties depending on the relative contribution of both curing stages. Intermediate materials can either be shape conformable solids, or liquids that are applicable as adhesives. Fully cured materials exhibit shape-memory effect.
  • Otros:

    Autor según el artículo: Konuray O., Areny N., Morancho J., Fernández-Francos X., Serra À., Ramis X.
    Departamento: Química Analítica i Química Orgànica
    Autor/es de la URV: Fernández Francos, Xavier / Serra Albet, Maria Angels
    Palabras clave: Thermosets Polímers amb propietats de memoria de forma Latent catalyst Latent base Epoxy resin Epoxy Dual-curing Diamine
    Resumen: 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 self-limiting click epoxy-amine polycondensation with an excess of epoxides and the second stage was an anionic homopolymerization of the unreacted epoxy groups, initiated by a latent base. The curing process was sequential with storage stable intermediate materials. The latency of these partially-cured intermediate materials was established not only by a thermally activated base generator, but also by the vitrification of the formulations. The intermediate and final materials exhibit a wide range of properties depending on the relative contribution of both curing stages. Intermediate materials can either be shape conformable solids, or liquids that are applicable as adhesives. Fully cured materials exhibit shape-memory effect.
    Áreas temáticas: Química Polymers and plastics Polymer science Organic chemistry Medicina ii Materials chemistry Materiais Interdisciplinar Farmacia Engenharias iv Engenharias iii Engenharias ii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Biotecnología Astronomia / física
    ISSN: 00323861
    Direcció de correo del autor: angels.serra@urv.cat xavier.fernandez@urv.cat
    Identificador del autor: 0000-0003-1387-0358 0000-0002-3492-2922
    Fecha de alta del registro: 2024-09-07
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0032386118304361
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Polymer. 146 42-52
    Referencia de l'ítem segons les normes APA: Konuray O., Areny N., Morancho J., Fernández-Francos X., Serra À., Ramis X. (2018). Preparation and characterization of dual-curable off-stoichiometric amine-epoxy thermosets with latent reactivity. Polymer, 146(), 42-52. DOI: 10.1016/j.polymer.2018.05.040
    DOI del artículo: 10.1016/j.polymer.2018.05.040
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2018
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Materials Chemistry,Organic Chemistry,Polymer Science,Polymers and Plastics
    Thermosets
    Polímers amb propietats de memoria de forma
    Latent catalyst
    Latent base
    Epoxy resin
    Epoxy
    Dual-curing
    Diamine
    Química
    Polymers and plastics
    Polymer science
    Organic chemistry
    Medicina ii
    Materials chemistry
    Materiais
    Interdisciplinar
    Farmacia
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências agrárias i
    Biotecnología
    Astronomia / física
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