Univerzita PardubiceFakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

SYNTHESIS OF UNSATURATED POLYESTER RESINS FROM BIO-BASED MONOMERS

Autoři: Všetečka Jan

Rok: 2025

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	SYNTHESIS OF UNSATURATED POLYESTER RESINS FROM BIO-BASED MONOMERS	Unsaturated polyester (UP) resins are solutions of unsaturated polyesters in reactive diluent, which after crosslinking form dense polymer network. Commercial UP resins are produced from oil-based chemicals but there is an increasing trend toward bio-based alternatives. One notable bio-based feedstock is itaconic acid, a dicarboxylic acid with a reactive double bond, reported in the literature as a sustainable replacement for maleic anhydride for the production of UP resins. In this study, we examined styrene-free UP resins accessible from itaconic anhydride, a bio-based compound produced by dehydration of itaconic acid or pyrolysis of citric acid. Another bio-based monomer used to prepare UP resins in this work is thiophene 2,5 dicarboxylic acid, which is produced from adipic acid. Prepared UPs were characterized by SEC and NMR, IR and Raman spectroscopy. Mechanical and thermal properties of cured formulations were studied. It was found that Young’s modulus of bio-based UP resins reaches 3.5 GPa, which is comparable to commercial oil based UP resins.	Unsaturated polyester resins; bio-based monomers; itaconic acid; thiophene 2,5 dicarboxylic acid