Autor segons l'article: Konuray O., Fernández-Francos X., Ramis X., Serra À.
Departament: Química Analítica i Química Orgànica
Autor/s de la URV: Fernández Francos, Xavier / Serra Albet, Maria Angels
Paraules clau: Thiol Michael addition Methacrylate Dual-curing Click reaction Click chemistry Acrylate
Resum: 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.
Àrees temàtiques: 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
Adreça de correu electrònic de l'autor: xavier.fernandez@urv.cat angels.serra@urv.cat
Identificador de l'autor: 0000-0002-3492-2922 0000-0003-1387-0358
Pàgina final: 377
Data d'alta del registre: 2023-02-18
Volum de revista: 138
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0032386118300995
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Polymer. 138 369-377
Referència 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 de l'article: 10.1016/j.polymer.2018.01.073
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2018
Pàgina inicial: 369
Tipus de publicació: Journal Publications
Repositori URV