Autor segons l'article: Roig, Adria; Hidalgo, Pere; Ramis, Xavier; De la Flor, Silvia; Serra, Angels;
Departament: Enginyeria Mecànica Química Analítica i Química Orgànica
Autor/s de la URV: De la Flor Lopez, Silvia / Serra Albet, Maria Angels
Paraules clau: Vitrimers Vanillin Transesterification Self-welding Reprocessability Recyclability Imine metathesis Covalent adaptable networks Catalyst vitrimers transesterification self-welding recyclability imine metathesis covalent adaptable networks catalyst
Resum: A series of bio-based polyimine vitrimers was obtained and characterized. A diimine-diglycidyl monomer (DIDG) was synthesized by condensing vanillin with 4,4 '-oxydianiline (ODA) and further glycidylation with epichlorohydrin. This compound was cross-linked with three different Jeffamines (Jeff230, JeffD400, and JeffT403) with a different number of poly(propylene glycol) units in their structure and different functionalities. Trimethylolpropane triglycidyl ether (TMPTE) was added to the formulation to improve the thermal, mechanical, and thermomechanical properties. All of the materials prepared showed Tg's above 66 degrees C, good vitrimeric behavior being the maximum relaxation rate reached by the material prepared from JeffD400, which also allows the most extensive degradation when treated with an acidic aqueous solution. These polyimine vitrimers can entirely relax the stress in less than 10.5 min at 150 degrees C without any added catalyst. All of the materials prepared could be satisfactorily recycled up to 200 degrees C also presenting an excellent self-welding ability.
Àrees temàtiques: Process chemistry and technology Polymers and plastics Polymer science Organic chemistry Materials science, multidisciplinary
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: angels.serra@urv.cat silvia.delaflor@urv.cat
Identificador de l'autor: 0000-0003-1387-0358 0000-0002-6851-1371
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Acs Applied Polymer Materials. 4 (12): 9341-9350
Referència de l'ítem segons les normes APA: Roig, Adria; Hidalgo, Pere; Ramis, Xavier; De la Flor, Silvia; Serra, Angels; (2022). Vitrimeric Epoxy-Amine Polyimine Networks Based on a Renewable Vanillin Derivative. Acs Applied Polymer Materials, 4(12), 9341-9350. DOI: 10.1021/acsapm.2c01604
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications
Repositori URV