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Data · dataset · 2023

Designing Sustainable Polymers: Lactate Esters for 3D Printing and Upcycling [data]

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The search for sustainable polymer systems is key to tackling the current climate crisis.

Description

However, the use of bio-based polymers does not suffice to achieve this goal. Additionally, new chemical approaches enabling the re- or upcycling of polymer materials need to be explored.

Herein, we exploit lactate esters with different substituents as readily available bio-based molecules for the synthesis of printable monomers. The synthesis of these lactate ester-based monomers follows green chemistry principles by establishing a solvent-free, one-pot approach, relying on a reusable catalyst, and achieving high conversions (84 – 100%) at mild conditions. Further, these monomers are utilized in 3D printable ink formulations for digital light processing (DLP) for the first time in combination with a recycled crosslinker.

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The resulting 3D printed structures display complex geometries with high resolution. A key attribute of the presented system is that the 3D printed polymer material can be upcycled via aminolysis affording a pre-cursor of the crosslinker, which is in turn incorporated into the further ink formulations, introducing a material circularity into the system. These results demonstrate a powerful approach by combining bio-based monomers and chemical upcycling with sustainable 3D printing techniques.

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Stated by source
Chemistry · Engineering
From keywords
Chemistry · Engineering
Provenance · 1 source records, 10 field assertions
SourceKeyLast seenRaw
heiDATAdoi:10.11588/DATA/NUIXMG19 h agoJSON v1
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concepts[field].dataverse_subject:engineeringsource · heidata uni heidelberg deconnector:heidata_uni_heidelberg_de@1.0.0/subjects
concepts[field].local:field:chemistrymapping · heidata uni heidelberg deconnector:heidata_uni_heidelberg_de@1.0.0/subjects
concepts[field].local:field:engineeringmapping · heidata uni heidelberg deconnector:heidata_uni_heidelberg_de@1.0.0/subjects
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