Synthesis of Bio-Based Thermoset Mixture Composed of Methacrylated Rapeseed Oil and Methacrylated Methyl Lactate: One-Pot Synthesis Using Formed Methacrylic Acid as a Continual Reactant

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dc.contributor.authorJašek, Vojtěchcs
dc.contributor.authorFučík, Jancs
dc.contributor.authorMelčová, Veronikacs
dc.contributor.authorFigalla, Silvestrcs
dc.contributor.authorMravcová, Ludmilacs
dc.contributor.authorKrobot, Štěpáncs
dc.contributor.authorPřikryl, Radekcs
dc.coverage.issue8cs
dc.coverage.volume15cs
dc.date.issued2023-04-07cs
dc.description.abstractMethacrylated vegetable oils are promising bio-based polymerizable precursors for potential material application in several fields, such as coating technologies or 3D printing. The reactants' availability for their production is an enormous advantage, but the modified oils also exhibit high apparent viscosity values and poor mechanical properties. This work focuses on a way to produce oil-based polymerizable material precursors in a mixture with a viscosity modifier in a one-batch process. The required methacrylic acid for the modification of epoxidized vegetable oils can be obtained as a secondary product of the methacrylation of methyl lactate forming a polymerizable monomer along with the acid. This reaction results in a yield of over 98% of methacrylic acid. Epoxidized vegetable oil can be added into the same batch using acid for oil modification which results in the one-pot mixture of both methacrylated oil and methyl lactate. The structural verifications of products were provided via FT-IR, H-1 NMR, and volumetric methods. This two-step reaction process produces a thermoset mixture with a lower apparent viscosity of 142.6 mPa center dot s in comparison with methacrylated oil exhibiting a value of 1790.2 mPa center dot s. Other physical-chemical properties of the resin mixture such as storage modulus (E ' = 1260 MPa), glass transition temperature (T-g = 50.0 degrees C), or polymerization activation energy (17.3 kJ/mol) are enhanced in comparison with the methacrylated vegetable oil. The synthesized one-pot mixture does not require additional methacrylic acid due to the use of the one formed in the first step of the reaction, while the eventual thermoset mixture exhibits enhanced material properties compared to the methacrylated vegetable oil itself. Precursors synthesized in this work may find their purpose in the field of coating technologies, since these applications require detailed viscosity modifications.en
dc.formattextcs
dc.format.extent1-21cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2023, vol. 15, issue 8, p. 1-21.en
dc.identifier.doi10.3390/polym15081811cs
dc.identifier.issn2073-4360cs
dc.identifier.orcid0000-0002-8020-4948cs
dc.identifier.orcid0000-0002-3408-4383cs
dc.identifier.orcid0000-0002-2124-6953cs
dc.identifier.orcid0000-0003-2392-8031cs
dc.identifier.orcid0000-0003-1011-6616cs
dc.identifier.orcid0000-0002-8647-2097cs
dc.identifier.orcid0000-0002-7811-9840cs
dc.identifier.other183508cs
dc.identifier.researcheridABD-4360-2020cs
dc.identifier.researcheridG-9690-2018cs
dc.identifier.researcheridHHN-0528-2022cs
dc.identifier.researcheridE-8210-2010cs
dc.identifier.scopus57204110910cs
dc.identifier.scopus25621742800cs
dc.identifier.scopus57984865200cs
dc.identifier.urihttp://hdl.handle.net/11012/209499
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/15/8/1811cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectmethacrylated methyl lactateen
dc.subjectviscosity modificationen
dc.subjectthermoset mixtureen
dc.subjectpolymerizable precursorsen
dc.subjectresinen
dc.subjectmodified lactateen
dc.titleSynthesis of Bio-Based Thermoset Mixture Composed of Methacrylated Rapeseed Oil and Methacrylated Methyl Lactate: One-Pot Synthesis Using Formed Methacrylic Acid as a Continual Reactanten
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183508en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:26en
sync.item.modts2025.01.17 15:23:13en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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