Volume 139, Issue 42 e53029
RESEARCH ARTICLE

Development of high-performance partially biobased thermoset polyester using renewable building blocks from isosorbide, 1,3-propanediol, and fumaric acid

Mateus Hofmann

Corresponding Author

Mateus Hofmann

Civil Engineering Research and Innovation for Sustainability, Instituto Superior Técnico, Lisbon, Portugal

Correspondence

Mateus Hofmann, Civil Engineering Research and Innovation for Sustainability, Instituto Superior Técnico, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal.

Email: [email protected]

Contribution: Conceptualization (lead), Data curation (lead), Formal analysis (lead), ​Investigation (lead), Methodology (lead), Validation (lead), Visualization (lead), Writing - original draft (lead)

Search for more papers by this author
Mário Garrido

Mário Garrido

Civil Engineering Research and Innovation for Sustainability, Instituto Superior Técnico, Lisbon, Portugal

Contribution: Formal analysis (equal), Funding acquisition (equal), ​Investigation (equal), Resources (equal), Supervision (equal), Validation (equal), Visualization (equal), Writing - review & editing (equal)

Search for more papers by this author
Marina Machado

Marina Machado

Civil Engineering Research and Innovation for Sustainability, Instituto Superior Técnico, Lisbon, Portugal

Contribution: Data curation (supporting), Formal analysis (supporting), ​Investigation (supporting), Validation (supporting), Visualization (supporting), Writing - original draft (supporting), Writing - review & editing (supporting)

Search for more papers by this author
João R Correia

João R Correia

Civil Engineering Research and Innovation for Sustainability, Instituto Superior Técnico, Lisbon, Portugal

Contribution: Formal analysis (equal), Funding acquisition (equal), ​Investigation (equal), Resources (equal), Supervision (equal), Validation (equal), Visualization (equal), Writing - review & editing (equal)

Search for more papers by this author
João C Bordado

João C Bordado

Centro de Recursos Naturais e Ambiente, Instituto Superior Técnico, Lisbon, Portugal

Contribution: Formal analysis (equal), Funding acquisition (equal), ​Investigation (equal), Methodology (equal), Resources (equal), Supervision (equal), Validation (equal), Visualization (equal), Writing - review & editing (equal)

Search for more papers by this author
First published: 29 August 2022
Citations: 1

Funding information: CERENA of IST; CERIS, Grant/Award Number: UIDB/04625/2020; FCT, Grant/Award Number: PTDC/ECI-EGC/29597/2017; Agência Nacional da Inovação (ANI), Grant/Award Number: ANI 39769-31/SI/2017; Fundação para a Ciência e a Tecnologia (FCT), Grant/Award Numbers: SFRH/BD/04675/2020, SFRH/BD/139863/2018

Abstract

Research on biobased thermoset resins has been overlooked when compared with the rapid progress on biobased thermoplastics. The objective of this work was to develop unsaturated polyester prepolymers based on building blocks derived from renewable raw materials, namely, biobased isosorbide, 1,3-propanediol, and fumaric acid, with petroleum-derived phthalic anhydride. The prepolymers developed herein behaved as low-molecular weight macromolecules (oligoesters), with Mn varying between 1.2 and 1.5 kDa, but achieved a high bio-content of up to 87.1 wt%. The prepolymers were incorporated into reactive diluents comprising a blend of 2-hydroxyethyl methacrylate and styrene, formulated to be eco-friendlier and less toxic than typical styrene-only incorporation approach, thus resulting in resins with viscosities between 750 and 950 cP. These resins are suitable for use in various fiber-reinforced polymer production techniques, such as manual lamination, vacuum infusion, and pultrusion, having the benefit of presenting over 50 wt% of bio-content in some formulations. Moreover, the crosslinked polyester resins (thermosets) exhibit comparable mechanical and thermomechanical behavior to their petrochemical-based counterparts, with modulus of elasticity and tensile strength of up to 3.9 GPa and 62.1 MPa, respectively, and glass transition temperatures of up to 106°C, making them greener alternatives for high-performance structural applications.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.