Articles producció científica> Química Analítica i Química Orgànica

Novel hybrid organic/inorganic poly(thiourethane) covalent adaptable networks

  • Datos identificativos

    Identificador: imarina:9280531
    Handle: http://hdl.handle.net/20.500.11797/imarina9280531
  • Autores:

    Guerrero, Federico
    De la Flor, Silvia
    Ramis, Xavier
    Santos, Jose-Ignacio
    Serra, Angels
  • Otros:

    Autor según el artículo: Guerrero, Federico; De la Flor, Silvia; Ramis, Xavier; Santos, Jose-Ignacio; Serra, Angels;
    Departamento: Enginyeria Mecànica Química Analítica i Química Orgànica
    Autor/es de la URV: De la Flor Lopez, Silvia / Serra Albet, Maria Angels
    Palabras clave: Vitrimers Thermosets Poss Polyurethane Poly(thiourethane) Oligomeric silsesquioxane poss Nanocomposites Kinetics Epoxy Dielectric-properties Click reaction Chemistry
    Resumen: Organic-inorganic hybrid materials combine the advantages of both phases: hardness and strength of inorganic phase and elasticity and toughness of the organic matrix. In the present study, we have prepared nanocomposites with a poly(thiourethane) polymeric matrix and silsesquioxane-type structures, with thiols as reactive groups (POSS-A or POSS-B, synthesized in different pressure conditions), looking for a covalent interaction between both phases, and good dispersion. Due to the click behavior of the reaction between the isocyanate and the thiol groups, highly homogeneous materials are obtained. Both monomers, catalyst (dibutyltin dilaurate, DBTDL), and the POSS precursor (3-mercaptopropyl trimethoxysilane, MPTMS), are commercially available, which present the advantage of being industrially scalable. The incorporation of POSS leads to an increase in glassy and rubbery storage moduli and the temperature of the maximum of tan delta curve. The vitrimeric behavior of the poly(thiourethanes) improved with the POSS incorporation, getting lower relaxation times. With a higher proportion of closed cages, POSS-B leads to the most significant improvements. All the materials prepared showed high transparency and the fracture of POSS modified materials indicates an improved toughness.
    Áreas temáticas: Química Polymers and plastics Polymer science Physics and astronomy (miscellaneous) Physics and astronomy (all) Organic chemistry Odontología Materials chemistry Materiais Interdisciplinar General physics and astronomy Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências ambientais Ciência de alimentos Ciência da computação Biotecnología Astronomia / física Arquitetura, urbanismo e design
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: silvia.delaflor@urv.cat angels.serra@urv.cat
    Identificador del autor: 0000-0002-6851-1371 0000-0003-1387-0358
    Fecha de alta del registro: 2023-02-19
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S001430572200341X
    URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: European Polymer Journal. 174
    Referencia de l'ítem segons les normes APA: Guerrero, Federico; De la Flor, Silvia; Ramis, Xavier; Santos, Jose-Ignacio; Serra, Angels; (2022). Novel hybrid organic/inorganic poly(thiourethane) covalent adaptable networks. European Polymer Journal, 174(), -. DOI: 10.1016/j.eurpolymj.2022.111337
    DOI del artículo: 10.1016/j.eurpolymj.2022.111337
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2022
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Materials Chemistry,Organic Chemistry,Physics and Astronomy (Miscellaneous),Polymer Science,Polymers and Plastics
    Vitrimers
    Thermosets
    Poss
    Polyurethane
    Poly(thiourethane)
    Oligomeric silsesquioxane poss
    Nanocomposites
    Kinetics
    Epoxy
    Dielectric-properties
    Click reaction
    Chemistry
    Química
    Polymers and plastics
    Polymer science
    Physics and astronomy (miscellaneous)
    Physics and astronomy (all)
    Organic chemistry
    Odontología
    Materials chemistry
    Materiais
    Interdisciplinar
    General physics and astronomy
    Farmacia
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Ciências ambientais
    Ciência de alimentos
    Ciência da computação
    Biotecnología
    Astronomia / física
    Arquitetura, urbanismo e design
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