Articles producció científica> Química Analítica i Química Orgànica

Novel thermal curing of cycloaliphatic resins by thiol-epoxy click process with several multifunctional thiols

  • Dades identificatives

    Identificador: imarina:5130696
    Autors:
    Guzmán D., Mateu B., Fernández-Francos X., Ramis X., Serra A.
    Resum:
    Novel thermosets were prepared by the base-catalysed reaction between a cycloaliphatic resin (ECC) and various thiol crosslinkers. 4-(N,N-Dimethylaminopyridine) (DMAP) was used as base catalyst for the thiol-epox y reaction. A commercial tetrathiol (PETMP) and three different thiols synthesized by us, 6SH-SQ, 3SH-EU and 3SH-ISO, were tested. 6SH-SQ and 3SH-EU were prepared from vinyl or allyl compounds from renewable resources such as squalene and eugenol, respectively. Thiol 3SH-ISO was prepared starting from commercially available triallyl isocyanurate. A kinetic study of the mixtures was performed using differential scanning calorimetr y. Stoichiometric ECC/thiol/DMAP formulations were cured at 120 ∘ Cfor1h,at 150 ∘ C for 1 h and post-cured for 30 min at 200 ∘ C. The materials were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis and dynamic mechanical thermal analysis. The results revealed that the materials obtained from the synthesized thiols had higher thermal stability and glass transition temperatures than those obtained from the commercial PETMP. In addition, all the materials obtained exhibited very good transparency. This study proves the ability of multifunctional thiols to crosslink cycloaliphatic epoxy resins, leading to more flexible materials than those obtained by cationic homopolymerization of ECC or base- catalysed ECC-anhydride copolymerization.
  • Altres:

    Autor segons l'article: Guzmán D., Mateu B., Fernández-Francos X., Ramis X., Serra A.
    Departament: Química Analítica i Química Orgànica
    Autor/s de la URV: Fernández Francos, Xavier / Serra Albet, Maria Angels
    Paraules clau: Thiol–epoxy Thiol-epoxy Thermosets Squalene Eugenol Epoxy resins Cycloaliphatic epoxides Crosslinking Click chemistry Click
    Resum: Novel thermosets were prepared by the base-catalysed reaction between a cycloaliphatic resin (ECC) and various thiol crosslinkers. 4-(N,N-Dimethylaminopyridine) (DMAP) was used as base catalyst for the thiol-epox y reaction. A commercial tetrathiol (PETMP) and three different thiols synthesized by us, 6SH-SQ, 3SH-EU and 3SH-ISO, were tested. 6SH-SQ and 3SH-EU were prepared from vinyl or allyl compounds from renewable resources such as squalene and eugenol, respectively. Thiol 3SH-ISO was prepared starting from commercially available triallyl isocyanurate. A kinetic study of the mixtures was performed using differential scanning calorimetr y. Stoichiometric ECC/thiol/DMAP formulations were cured at 120 ∘ Cfor1h,at 150 ∘ C for 1 h and post-cured for 30 min at 200 ∘ C. The materials were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis and dynamic mechanical thermal analysis. The results revealed that the materials obtained from the synthesized thiols had higher thermal stability and glass transition temperatures than those obtained from the commercial PETMP. In addition, all the materials obtained exhibited very good transparency. This study proves the ability of multifunctional thiols to crosslink cycloaliphatic epoxy resins, leading to more flexible materials than those obtained by cationic homopolymerization of ECC or base- catalysed ECC-anhydride copolymerization.
    Àrees temàtiques: Química Polymers and plastics Polymer science Organic chemistry Materials chemistry Materiais Interdisciplinar Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas ii Ciências biológicas i Ciência de alimentos Biotecnología Biodiversidade Astronomia / física
    ISSN: 09598103
    Adreça de correu electrònic de l'autor: angels.serra@urv.cat xavier.fernandez@urv.cat
    Identificador de l'autor: 0000-0003-1387-0358 0000-0002-3492-2922
    Pàgina final: 1707
    Data d'alta del registre: 2024-09-07
    Volum de revista: 66
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://onlinelibrary.wiley.com/doi/abs/10.1002/pi.5336
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Polymer International. 66 (12): 1697-1707
    Referència de l'ítem segons les normes APA: Guzmán D., Mateu B., Fernández-Francos X., Ramis X., Serra A. (2017). Novel thermal curing of cycloaliphatic resins by thiol-epoxy click process with several multifunctional thiols. Polymer International, 66(12), 1697-1707. DOI: 10.1002/pi.5336
    DOI de l'article: 10.1002/pi.5336
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2017
    Pàgina inicial: 1697
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Materials Chemistry,Organic Chemistry,Polymer Science,Polymers and Plastics
    Thiol–epoxy
    Thiol-epoxy
    Thermosets
    Squalene
    Eugenol
    Epoxy resins
    Cycloaliphatic epoxides
    Crosslinking
    Click chemistry
    Click
    Química
    Polymers and plastics
    Polymer science
    Organic chemistry
    Materials chemistry
    Materiais
    Interdisciplinar
    Farmacia
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Ciências biológicas ii
    Ciências biológicas i
    Ciência de alimentos
    Biotecnología
    Biodiversidade
    Astronomia / física
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