Journal
ADVANCED MATERIALS
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202306468
Keywords
light-driven 3D printing; photochemical materials design; precision photochemistry
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This article evaluates recent advances in photoresist design for light-driven 3D printing and provides an outlook on the challenges and opportunities. By classifying the photoresists into chemistries that function photoinitiator-free and those that require a photoinitiator, their capabilities and limitations are comprehensively understood.
3D printing with light is enabled by the photochemistry underpinning it. Without fine control over the ability to photochemically gate covalent bond formation by the light at a certain wavelength and intensity, advanced photoresists with functions spanning from on-demand degradability, adaptability, rapid printing speeds, and tailored functionality are impossible to design. Herein, recent advances in photoresist design for light-driven 3D printing applications are critically assessed, and an outlook of the outstanding challenges and opportunities is provided. This is achieved by classing the discussed photoresists in chemistries that function photoinitiator-free and those that require a photoinitiator to proceed. Such a taxonomy is based on the efficiency with which photons are able to generate covalent bonds, with each concept featuring distinct advantages and drawbacks. Enabling precision control over photochemical reactions is essential for designing advanced photoresists with diverse functionalities. Herein, recent advances in photoresist design for light-driven 3D printing are evaluated. The discussed photoresists are classified into chemistries that function photoinitiator-free and those that require a photoinitiator to proceed, enabling a comprehensive understanding of their capabilities, limitations, and realistic possibilities for the near future.image
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