Reprocessable and Repairable Bio‐Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing.
Saved in:
| Title: | Reprocessable and Repairable Bio‐Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing. |
|---|---|
| Authors: | Greivule, Sabine1 (AUTHOR), Besprozvannaja, Inga1 (AUTHOR), Porcarello, Matilde2 (AUTHOR), Gaidukovs, Sergejs1 (AUTHOR) Sergejs.Gaidukovs@rtu.lv |
| Source: | Macromolecular Materials & Engineering. Jun2026, Vol. 311 Issue 6, p1-14. 14p. |
| Subjects: | Three-dimensional printing, Transesterification, Thermosetting polymers, Polymer networks, Biopolymers, Stereolithography, Self-healing materials |
| Abstract: | Thermosets are difficult to reprocess and often rely on petroleum‐derived feedstocks, creating environmental and end‐of‐life challenges. This study addresses both issues by developing reprocessable bio‐based vitrimers tailored for additive manufacturing. Acrylated epoxidized rapeseed oil (AERO) was synthesized as a renewable UV curable precursor for constructing vitrimer networks capable of intrinsic and catalyst‐assisted transesterification. The influence of transesterification catalyst Zn(acac)2, AERO content, and reprocessing cycles was systematically studied through real‐time curing behavior, stress relaxation, and thermo‐mechanical characterization. Catalyst‐free vitrimers exhibited notable stress relaxation of 34 min at elevated temperature due to the high density of β‐hydroxyester groups, enabling intrinsic bond exchange. On the other hand, Zn(acac)2‐containing vitrimers demonstrated enhanced reprocessability with relaxation times as low as 10 min. Tensile strength recovery reached 98% after the first and 50% after the second reprocessing cycle. TGA‐FTIR analysis indicated increased CO2 and carbonyl‐rich volatile release in catalyst‐containing vitrimers, consistent with dynamic bond exchange reactions. Finally, the developed vitrimers exhibited excellent vat photopolymerization 3D printability and repairability, with repaired printed parts exceeding the original tensile properties by up to 2.9 times. These findings highlight the potential of vegetable oil‐based vitrimers as promising, customizable, repairable, and sustainable materials for next‐generation advanced additive manufacturing and circular polymer design. [ABSTRACT FROM AUTHOR] |
| Copyright of Macromolecular Materials & Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 194974188 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Reprocessable and Repairable Bio‐Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Greivule%2C+Sabine%22">Greivule, Sabine</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Besprozvannaja%2C+Inga%22">Besprozvannaja, Inga</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Porcarello%2C+Matilde%22">Porcarello, Matilde</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gaidukovs%2C+Sergejs%22">Gaidukovs, Sergejs</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Sergejs.Gaidukovs@rtu.lv</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Macromolecular+Materials+%26+Engineering%22">Macromolecular Materials & Engineering</searchLink>. Jun2026, Vol. 311 Issue 6, p1-14. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Three-dimensional+printing%22">Three-dimensional printing</searchLink><br /><searchLink fieldCode="DE" term="%22Transesterification%22">Transesterification</searchLink><br /><searchLink fieldCode="DE" term="%22Thermosetting+polymers%22">Thermosetting polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Polymer+networks%22">Polymer networks</searchLink><br /><searchLink fieldCode="DE" term="%22Biopolymers%22">Biopolymers</searchLink><br /><searchLink fieldCode="DE" term="%22Stereolithography%22">Stereolithography</searchLink><br /><searchLink fieldCode="DE" term="%22Self-healing+materials%22">Self-healing materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Thermosets are difficult to reprocess and often rely on petroleum‐derived feedstocks, creating environmental and end‐of‐life challenges. This study addresses both issues by developing reprocessable bio‐based vitrimers tailored for additive manufacturing. Acrylated epoxidized rapeseed oil (AERO) was synthesized as a renewable UV curable precursor for constructing vitrimer networks capable of intrinsic and catalyst‐assisted transesterification. The influence of transesterification catalyst Zn(acac)2, AERO content, and reprocessing cycles was systematically studied through real‐time curing behavior, stress relaxation, and thermo‐mechanical characterization. Catalyst‐free vitrimers exhibited notable stress relaxation of 34 min at elevated temperature due to the high density of β‐hydroxyester groups, enabling intrinsic bond exchange. On the other hand, Zn(acac)2‐containing vitrimers demonstrated enhanced reprocessability with relaxation times as low as 10 min. Tensile strength recovery reached 98% after the first and 50% after the second reprocessing cycle. TGA‐FTIR analysis indicated increased CO2 and carbonyl‐rich volatile release in catalyst‐containing vitrimers, consistent with dynamic bond exchange reactions. Finally, the developed vitrimers exhibited excellent vat photopolymerization 3D printability and repairability, with repaired printed parts exceeding the original tensile properties by up to 2.9 times. These findings highlight the potential of vegetable oil‐based vitrimers as promising, customizable, repairable, and sustainable materials for next‐generation advanced additive manufacturing and circular polymer design. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Macromolecular Materials & Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=194974188 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/mame.70228 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1 Subjects: – SubjectFull: Three-dimensional printing Type: general – SubjectFull: Transesterification Type: general – SubjectFull: Thermosetting polymers Type: general – SubjectFull: Polymer networks Type: general – SubjectFull: Biopolymers Type: general – SubjectFull: Stereolithography Type: general – SubjectFull: Self-healing materials Type: general Titles: – TitleFull: Reprocessable and Repairable Bio‐Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Greivule, Sabine – PersonEntity: Name: NameFull: Besprozvannaja, Inga – PersonEntity: Name: NameFull: Porcarello, Matilde – PersonEntity: Name: NameFull: Gaidukovs, Sergejs IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14387492 Numbering: – Type: volume Value: 311 – Type: issue Value: 6 Titles: – TitleFull: Macromolecular Materials & Engineering Type: main |
| ResultId | 1 |
