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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2026

Kód důvěrnosti údajů

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

Název periodika

RSC Sustainability

ISSN

—

e-ISSN

2753-8125

Svazek periodika

4

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

001673498700001

EID výsledku v databázi Scopus

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