Sustainable glycerol-based reactive diluent alternatives to commercial ethylene glycol diacrylate (EGDA) and 2-hydroxyethyl methacrylate (HEMA) for additive manufacturing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F26%3A0201002" target="_blank" >RIV/00216305:26310/26:0201002 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2026/su/d5su00891c" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2026/su/d5su00891c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d5su00891c" target="_blank" >10.1039/d5su00891c</a>

Result language

angličtina

Original language name

Sustainable glycerol-based reactive diluent alternatives to commercial ethylene glycol diacrylate (EGDA) and 2-hydroxyethyl methacrylate (HEMA) for additive manufacturing

Original language description

This work proposes an efficient production route to sustainable reactive diluents based on modified glycerol as an alternative to commercial compounds such as 2-hydroxyethyl methacrylate (HEMA) and ethylene glycol diacrylate (EGDA). The synthesis of methacrylated vegetable oil (MO) was performed through nucleophilic substitution catalyzed by an organic base (triethylamine). Glycerol monomethacrylate (MGLY) and glycerol trimethacrylate (TGLY) were produced by Fischer esterification. The structural cross-analysis included 1H NMR, ESI-MS, and FT-IR. The rheological investigation of systems composed of 75 wt% MO and 25 wt% reactive diluent confirmed the diluting role of MGLY and TGLY. The TGLY-based system exhibited a competitive apparent viscosity at 30 degrees C (eta 30 degrees C = 590 mPa s) and a flow activation energy (Ea = 48.4 kJ mol-1) comparable to those of commercial HEMA- and EGDA-based precursors. The testing specimens for DMA, TGA, and mechanical analysis were successfully fabricated using an mSLA 3D printer, confirming their utility for additive manufacturing. The TGLY-containing system outperformed all the investigated thermosets in the crosslinking density (nu e = 15.5 kmol m-3), the storage modulus at 30 degrees C (E ' = 473 MPa), and the tensile and flexural moduli. Based on the results, synthesized compounds improved the rheological, thermo-mechanical, and mechanical properties of MO-based thermosets.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20401 - Chemical engineering (plants, products)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2026

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

RSC Sustainability

ISSN

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e-ISSN

2753-8125

Volume of the periodical

4

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

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UT code for WoS article

001673498700001

EID of the result in the Scopus database

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