Onium Photocages for Visible-Light-Activated Poly(thiourethane) Synthesis and 3D Printing
Meghan T. Kiker,
Ain Uddin,
Lynn M. Stevens
et al.
Abstract:The lack of chemical diversity in light-driven reactions for 3D printing poses challenges in the production of structures with long-term ambient stability, recyclability, and breadth in properties (mechanical, optical, etc.). Herein we expand the scope of photochemistries compatible with 3D printing by introducing onium photocages for the rapid formation of poly(thiourethanes) (PTUs). Efficient nonsensitized visible-light photolysis releases organophosphine and -amine derivatives that catalyze thiol−isocyanate… Show more
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