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Enhancement in the Glass Transition Temperature in Latent Thiol-Epoxy Click Cured Thermosets

  • Datos identificativos

    Identificador: imarina:5133337
    Autores:
    Guzman, DailynRamis, XavierFernandez-Francos, XavierSerra, Angels
    Resumen:
    Tri and tetrafunctional thiol were used as curing agent for diglycidyl ether of bisphenol A (DGEBA) catalyzed by a commercially available amine precursor, LC-80. Triglycidyl isocianurate (TGIC) was added in different proportions to the mixture to increase rigidity and glass transition temperature (Tg). The cooperative effect of increasing functionality of thiol and the presence of TGIC in the formulation leads to an increased Tg without affecting thermal stability. The kinetics of the curing of mixtures was studied by calorimetry under isothermal and non-isothermal conditions. The latent characteristics of the formulations containing amine precursors were investigated by rheometry and calorimetry. The increase in the functionality of the thiol produces a slight decrease in the storage lifetime of the mixture. The materials obtained with tetrathiol as curing agent showed the highest values of Young's modulus and Tg.
  • Otros:

    Autor según el artículo: Guzman, Dailyn; Ramis, Xavier; Fernandez-Francos, Xavier; Serra, Angels
    Departamento: Enginyeria Mecànica Química Analítica i Química Orgànica
    e-ISSN: 2073-4360
    Autor/es de la URV: Fernández Francos, Xavier / Serra Albet, Maria Angels
    Palabras clave: Triglycidyl isocyanurate Thiol Thermosets Latency Epoxy resin Click reaction
    Resumen: Tri and tetrafunctional thiol were used as curing agent for diglycidyl ether of bisphenol A (DGEBA) catalyzed by a commercially available amine precursor, LC-80. Triglycidyl isocianurate (TGIC) was added in different proportions to the mixture to increase rigidity and glass transition temperature (Tg). The cooperative effect of increasing functionality of thiol and the presence of TGIC in the formulation leads to an increased Tg without affecting thermal stability. The kinetics of the curing of mixtures was studied by calorimetry under isothermal and non-isothermal conditions. The latent characteristics of the formulations containing amine precursors were investigated by rheometry and calorimetry. The increase in the functionality of the thiol produces a slight decrease in the storage lifetime of the mixture. The materials obtained with tetrathiol as curing agent showed the highest values of Young's modulus and Tg.
    Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 20734360
    Direcció de correo del autor: angels.serra@urv.cat xavier.fernandez@urv.cat
    Identificador del autor: 0000-0003-1387-0358 0000-0002-3492-2922
    Página final: 694
    Fecha de alta del registro: 2024-09-07
    Volumen de revista: 7
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.mdpi.com/2073-4360/7/4/680
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Polymers. 7 (4): 680-694
    Referencia de l'ítem segons les normes APA: Guzman, Dailyn; Ramis, Xavier; Fernandez-Francos, Xavier; Serra, Angels (2015). Enhancement in the Glass Transition Temperature in Latent Thiol-Epoxy Click Cured Thermosets. Polymers, 7(4), 680-694. DOI: 10.3390/polym7040680
    DOI del artículo: 10.3390/polym7040680
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2015
    Página inicial: 680
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Chemistry (Miscellaneous),Polymer Science,Polymers and Plastics
    Triglycidyl isocyanurate
    Thiol
    Thermosets
    Latency
    Epoxy resin
    Click reaction
    Polymers and plastics
    Polymer science
    Odontología
    General chemistry
    Farmacia
    Engenharias ii
    Ciências biológicas ii
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Astronomia / física
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