Autor segons l'article: Guzman, Dailyn; Santiago, David; Serra, Angels; Ferrando, Francesc
Departament: Enginyeria Mecànica
Autor/s de la URV: Ferrando Piera, Francesc / Serra Albet, Maria Angels / Serra Masdeu, Anna Isabel Maria
Paraules clau: Thiol-epoxy Sustainability Resins Phloroglucinol Oil Latent catalyst Epoxy thermoset Acid sustainability phloroglucinol latent catalyst epoxy thermoset
Resum: © 2020 by the authors. All rights reserved. The pure trifunctional glycidyl monomer from phloroglucinol (3EPO-Ph) was synthesized and used as feedstock in the preparation of novel bio-based thermosets by thiol-epoxy curing. The monomer was crosslinked with different commercially available thiols: tetrafunctional thiol (PETMP), trifunctional thiol (TTMP) and an aromatic dithiol (TBBT) as curing agents in the presence of a base. As catalyst, two different commercial catalysts: LC-80 and 4-(N,N-dimethylamino) pyridine (DMAP) and a synthetic catalyst, imidazolium tetraphenylborate (base generator, BG) were employed. The curing of the reactive mixtures was studied by using DSC and the obtained materials by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and dynamic mechanical thermal analysis (DMTA). The results revealed that only the formulations catalyzed by BG showed a latent character. Already prepared thermosetting materials showed excellent thermal, thermomechanical and mechanical properties, with a high transparency. In addition to that, when compared with the diglycidyl ether of bisphenol A (DGEBA)/PETMP material, the thermosets prepared from the triglycidyl derivative of phloroglucinol have better final characteristics and therefore this derivative can be considered as a partial or total renewable substitute of DGEBA in technological applications.
Àrees temàtiques: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 20734360
Adreça de correu electrònic de l'autor: angels.serra@urv.cat annaisabel.serra@urv.cat f.ferrando@urv.cat
Identificador de l'autor: 0000-0003-1387-0358 0000-0001-9353-7154 0000-0003-4450-2734
Data d'alta del registre: 2024-11-02
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/2073-4360/12/2/337
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Polymers. 12 (2): 337-
Referència de l'ítem segons les normes APA: Guzman, Dailyn; Santiago, David; Serra, Angels; Ferrando, Francesc (2020). Novel bio-based epoxy thermosets based on triglycidyl phloroglucinol prepared by thiol-epoxy reaction. Polymers, 12(2), 337-. DOI: 10.3390/polym12020337
DOI de l'article: 10.3390/polym12020337
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2020
Tipus de publicació: Journal Publications