Articles producció científica> Química Analítica i Química Orgànica

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

  • Identification data

    Identifier: imarina:5133337
    Authors:
    Guzman, DailynRamis, XavierFernandez-Francos, XavierSerra, Angels
    Abstract:
    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.
  • Others:

    Author, as appears in the article.: Guzman, Dailyn; Ramis, Xavier; Fernandez-Francos, Xavier; Serra, Angels
    Department: Enginyeria Mecànica Química Analítica i Química Orgànica
    e-ISSN: 2073-4360
    URV's Author/s: Fernández Francos, Xavier / Serra Albet, Maria Angels
    Keywords: Triglycidyl isocyanurate Thiol Thermosets Latency Epoxy resin Click reaction
    Abstract: 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.
    Thematic Areas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 20734360
    Author's mail: angels.serra@urv.cat xavier.fernandez@urv.cat
    Author identifier: 0000-0003-1387-0358 0000-0002-3492-2922
    Last page: 694
    Record's date: 2024-09-07
    Journal volume: 7
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.mdpi.com/2073-4360/7/4/680
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Polymers. 7 (4): 680-694
    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
    Article's DOI: 10.3390/polym7040680
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2015
    First page: 680
    Publication Type: Journal Publications
  • Keywords:

    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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