Working Paper Review Version 1 This version is not peer-reviewed

Synergic Kinetics and Strategies for Enhanced Photopolymerizations for 3d-Printing and Additive Manufacturing - A Critical Review

Version 1 : Received: 25 May 2021 / Approved: 26 May 2021 / Online: 26 May 2021 (13:29:11 CEST)

How to cite: Lin, J.; Lalevee, J.; Cheng, D. Synergic Kinetics and Strategies for Enhanced Photopolymerizations for 3d-Printing and Additive Manufacturing - A Critical Review. Preprints 2021, 2021050639 Lin, J.; Lalevee, J.; Cheng, D. Synergic Kinetics and Strategies for Enhanced Photopolymerizations for 3d-Printing and Additive Manufacturing - A Critical Review. Preprints 2021, 2021050639

Abstract

The synergic features and enhancing strategies for various photopolymerization systems are reviewed by kinetic schemes and the associated measurements. The important topics include: (i) photo crosslinking of corneas for the treatmnet of corneal deseases using UVA-light (365 nm) light and riboflavin as the photosensitizer; (ii) synergic effects by a dual-function enhancer in a 3-initiator system; (iii) synergic effects by a 3-initiator C/B/A system, having an electron-transfer and oxygen-mediated energy-transfer pathways; (iv) copper-complex (G1) photoredox catalyst in G1/Iod/NVK systems for free radiical (FRP) and cationic photopolymeriation (CP); (v) radical-mediated thiol-ene (TE) photopolymerizations; (vi) superbase photogenerator based-catalyzed thiol−acrylate Michael (TM) addition reaction; and the combined system of TE and TM usinghual wavelength; (vii) dual-wavelength (UV and blue) controlled photopolymerization confinement (PC); (viii) dual-wavelength (UV and red) selectively controlled 3D printing; and (ix) 3-wavelength selectively controlled in 3D printing and additive manufacturing (AM). With minimum mathematics, we present ( for the first time), the synergic features and enhancing strategies for various systems of multi-commponents, initiators, monomers, and under one- two- and there-wavelength light. Therefore, this Review provides not only the bridging between modeling and measurements, but also guidances for further experimantal stuides and new applications in 3D printings and additive manufacturing (AM), based on the innovative concepts (kinetics/schemes).

Subject Areas

3D printings; additive manufacturing; polymerization kinetics; photoredox; monomer conversion; synergic effects; cationic; free radical. UV visible light.

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