Autor según el artículo: Konuray O., Fernández-Francos X., Ramis X., Serra À.
Departamento: Química Analítica i Química Orgànica
Autor/es de la URV: Fernández Francos, Xavier / Serra Albet, Maria Angels
Palabras clave: Thiol Michael addition Methacrylate Dual-curing Click reaction Click chemistry Acrylate
Resumen: Soft poly(thioether) thermosets have been synthesized by employing a two-step curing procedure based on click chemistry. The first stage of curing is a thiol-Michael addition between acrylates (or methacrylates) and thiols in excess, catalyzed by a set of novel tertiary amine catalyst comonomers with allyl functionality. Subsequently, the pendant allyl groups of the comonomer get incorporated into the polymer network by undergoing thiol-ene UV photopolymerization with the remaining thiols. The strong catalysis by the high concentration of tertiary amine groups facilitates quantitative conversions at the end of the first stage. All remaining functional groups are depleted after a short period of UV irradiation. Final materials are clear, transparent, and exhibit homogeneous network structures with alpha relaxation temperatures in the range 3-25 °C. This sub-ambient relaxation temperature range suggests these materials may be suitable for coating applications where delicate substrates are involved such as plastic, wood and paper.
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
Página final: 377
Fecha de alta del registro: 2024-09-07
Volumen de revista: 138
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0032386118300995
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Polymer. 138 369-377
Referencia de l'ítem segons les normes APA: Konuray O., Fernández-Francos X., Ramis X., Serra À. (2018). New allyl-functional catalytic comonomers for sequential thiol- Michael and radical thiol-ene reactions. Polymer, 138(), 369-377. DOI: 10.1016/j.polymer.2018.01.073
DOI del artículo: 10.1016/j.polymer.2018.01.073
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2018
Página inicial: 369
Tipo de publicación: Journal Publications