Autor según el artículo: Guzmán D; Santiago D; Serra à; Ferrando F

Departamento: Enginyeria Mecànica

Autor/es de la URV: Ferrando Piera, Francesc / Serra Albet, Maria Angels

Palabras clave: Thiol-epoxy Sustainability Resins Phloroglucinol Oil Latent catalyst Epoxy thermoset Acid sustainability phloroglucinol latent catalyst epoxy thermoset

Resumen: © 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.

Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 20734360

Direcció de correo del autor: f.ferrando@urv.cat angels.serra@urv.cat

Identificador del autor: 0000-0003-4450-2734 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.mdpi.com/2073-4360/12/2/337

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Polymers. 12 (2):

Referencia de l'ítem segons les normes APA: Guzmán D; Santiago D; Serra à; Ferrando F (2020). Novel bio-based epoxy thermosets based on triglycidyl phloroglucinol prepared by thiol-epoxy reaction. Polymers, 12(2), -. DOI: 10.3390/polym12020337

DOI del artículo: 10.3390/polym12020337

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2020

Tipo de publicación: Journal Publications