Lignin-based covalent adaptable network resins for digital light projection 3D printing

Rebecca M. Johnson; Karen P. Cortés-Guzmán; Sachini D. Perera; Ankit R. Parikh; Vijayalakshmi Ganesh; Walter E. Voit; Ronald A. Smaldone

doi:10.1002/pol.20230026

Lignin-based covalent adaptable network resins for digital light projection 3D printing

Rebecca M. Johnson, Karen P. Cortés-Guzmán, Sachini D. Perera, Ankit R. Parikh, Vijayalakshmi Ganesh, Walter E. Voit, Ronald A. Smaldone

Soft Materials and Membranes

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

3D printing is a low cost, customizable, and fast-growing technology with the potential to revolutionize plastic manufacturing. Vat photopolymerization 3D printing technologies stand out for their high resolution, however, the resulting printed materials are made from petroleum feedstocks and are covalently crosslinked which renders them unrecyclable. Here, resin formulations with 70 wt% bio-based content and dynamic functionality are synthesized and printed using lignin, vanillin, and soybean oil components. These printed polymers can undergo dynamic transesterification due to the methacrylated lignin (LMA) to allow for self-healing capabilities; therefore, potentially increasing the materials lifetimes compared to traditional thermoset materials, offsetting the use of traditional petroleum-based resins, and lowering their environmental impact. The LMA also provides the thermosets with better mechanical performance and thermal stability in comparison to the controls. Additionally, compatibility with 3D printing technologies improves the competitiveness of biobased plastics with conventional materials.

Original language	English
Pages (from-to)	2585-2596
Number of pages	12
Journal	Journal of Polymer Science
Volume	62
Issue number	12
DOIs	https://doi.org/10.1002/pol.20230026
State	Published - Jun 15 2024

Funding

Karen P. Cort\u00E9s\u2010Guzm\u00E1n acknowledges the Consejo Nacional de Ciencia y Tecnolog\u00EDa (CONACYT, Mexican Council of Science and Technology) for doctoral fellowship. We also acknowledge the Advanced Polymer Research Lab (APRL) at UT Dallas for access to facilities for the thermal characterization of polymers, UT Dallas. Ankit R. Parikh acknowledges scientific and internship support from the U.S. Food and Drug Administration. Ronald A. Smaldone acknowledges support from UT Dallas, and the Army Research Laboratory (W911SR\u201022\u2010C\u20100048).

Keywords

3D printing
covalent adaptable networks
dynamic covalent chemistry
lignin
self-healing
transesterification
vanillin

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10.1002/pol.20230026

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title = "Lignin-based covalent adaptable network resins for digital light projection 3D printing",

abstract = "3D printing is a low cost, customizable, and fast-growing technology with the potential to revolutionize plastic manufacturing. Vat photopolymerization 3D printing technologies stand out for their high resolution, however, the resulting printed materials are made from petroleum feedstocks and are covalently crosslinked which renders them unrecyclable. Here, resin formulations with 70 wt\% bio-based content and dynamic functionality are synthesized and printed using lignin, vanillin, and soybean oil components. These printed polymers can undergo dynamic transesterification due to the methacrylated lignin (LMA) to allow for self-healing capabilities; therefore, potentially increasing the materials lifetimes compared to traditional thermoset materials, offsetting the use of traditional petroleum-based resins, and lowering their environmental impact. The LMA also provides the thermosets with better mechanical performance and thermal stability in comparison to the controls. Additionally, compatibility with 3D printing technologies improves the competitiveness of biobased plastics with conventional materials.",

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AU - Ganesh, Vijayalakshmi

AU - Voit, Walter E.

AU - Smaldone, Ronald A.

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N2 - 3D printing is a low cost, customizable, and fast-growing technology with the potential to revolutionize plastic manufacturing. Vat photopolymerization 3D printing technologies stand out for their high resolution, however, the resulting printed materials are made from petroleum feedstocks and are covalently crosslinked which renders them unrecyclable. Here, resin formulations with 70 wt% bio-based content and dynamic functionality are synthesized and printed using lignin, vanillin, and soybean oil components. These printed polymers can undergo dynamic transesterification due to the methacrylated lignin (LMA) to allow for self-healing capabilities; therefore, potentially increasing the materials lifetimes compared to traditional thermoset materials, offsetting the use of traditional petroleum-based resins, and lowering their environmental impact. The LMA also provides the thermosets with better mechanical performance and thermal stability in comparison to the controls. Additionally, compatibility with 3D printing technologies improves the competitiveness of biobased plastics with conventional materials.

AB - 3D printing is a low cost, customizable, and fast-growing technology with the potential to revolutionize plastic manufacturing. Vat photopolymerization 3D printing technologies stand out for their high resolution, however, the resulting printed materials are made from petroleum feedstocks and are covalently crosslinked which renders them unrecyclable. Here, resin formulations with 70 wt% bio-based content and dynamic functionality are synthesized and printed using lignin, vanillin, and soybean oil components. These printed polymers can undergo dynamic transesterification due to the methacrylated lignin (LMA) to allow for self-healing capabilities; therefore, potentially increasing the materials lifetimes compared to traditional thermoset materials, offsetting the use of traditional petroleum-based resins, and lowering their environmental impact. The LMA also provides the thermosets with better mechanical performance and thermal stability in comparison to the controls. Additionally, compatibility with 3D printing technologies improves the competitiveness of biobased plastics with conventional materials.

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Lignin-based covalent adaptable network resins for digital light projection 3D printing

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