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A Click Chemistry Strategy for the Synthesis of Efficient Photoinitiators for Two‐Photon Polymerization

Henning, Irene; Woodward, Adam W.; Rance, Graham A.; Paul, Benjamin T.; Wildman, Ricky D.; Irvine, Derek J.; Moore, Jonathan C.

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Authors

Irene Henning

Adam W. Woodward

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GRAHAM RANCE Graham.Rance@nottingham.ac.uk
Senior Research Fellow

Benjamin T. Paul

RICKY WILDMAN RICKY.WILDMAN@NOTTINGHAM.AC.UK
Professor of Multiphase Flow and Mechanics

DEREK IRVINE derek.irvine@nottingham.ac.uk
Professor of Materials Chemistry



Abstract

It is reported that efficient photoinitiators, suitable for two‐photon polymerization, can be obtained using the copper catalyzed azide/alkyne cycloaddition reaction. This click chemistry strategy provides a modular approach to the assembly of photoinitiators that enables the rapid variation of key fragments to produce photoinitiators with desirable properties. To assess the performance of the first‐in‐class photoinitiators generated by this approach, a screening method is developed to enable the rapid determination of polymerization and damage thresholds in numerous photoresists during two‐photon polymerization. The degree of consumption of vinyl groups (DC) and homogeneity of the polymerization are further assessed by micro‐Raman spectroscopy. Finally, more complex structures are fabricated to demonstrate that the efficient two‐photon polymerization of stable 3D microarchitectures can be achieved using triazole‐based photoinitiators.

Citation

Henning, I., Woodward, A. W., Rance, G. A., Paul, B. T., Wildman, R. D., Irvine, D. J., & Moore, J. C. (2020). A Click Chemistry Strategy for the Synthesis of Efficient Photoinitiators for Two‐Photon Polymerization. Advanced Functional Materials, 30(50), Article 2006108. https://doi.org/10.1002/adfm.202006108

Journal Article Type Article
Acceptance Date Aug 21, 2020
Online Publication Date Sep 13, 2020
Publication Date Dec 8, 2020
Deposit Date Sep 17, 2020
Publicly Available Date Sep 18, 2020
Journal Advanced Functional Materials
Print ISSN 1616-301X
Electronic ISSN 1616-3028
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 30
Issue 50
Article Number 2006108
DOI https://doi.org/10.1002/adfm.202006108
Keywords Electrochemistry; Electronic, Optical and Magnetic Materials; General Chemical Engineering; Condensed Matter Physics; Biomaterials
Public URL https://nottingham-repository.worktribe.com/output/4910393
Publisher URL https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202006108?af=R

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