Volume 132, Issue 5 pp. 2029-2033
Zuschrift

Effective Utilization of NIR Wavelengths for Photo-Controlled Polymerization: Penetration Through Thick Barriers and Parallel Solar Syntheses

Zilong Wu

Zilong Wu

Centre for Advanced Macromolecular Design, Australian Centre for Nanomedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052 Australia

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Dr. Kenward Jung

Corresponding Author

Dr. Kenward Jung

Centre for Advanced Macromolecular Design, Australian Centre for Nanomedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052 Australia

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Prof. Cyrille Boyer

Corresponding Author

Prof. Cyrille Boyer

Centre for Advanced Macromolecular Design, Australian Centre for Nanomedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052 Australia

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First published: 06 November 2019
Citations: 25

Abstract

This contribution details an efficient and controlled photopolymerization regulated by far-red (λ=680 nm) and NIR (λ=780 and 850 nm) light in the presence of aluminium phthalocyanine and aluminium naphthalocyanine. Initiating radicals are generated by photosensitization of peroxides affording an effective strategy that provides controlled polymerization of a variety of monomers with excellent living characteristics. Critically, long wavelength irradiation provides penetration through thick barriers, affording unprecedented rates of controlled polymerization that can open new and exciting applications. Furthermore, a more optimized approach to performing solar syntheses is presented. By combining the narrow Q-bands of these photocatalysts with others possessing complementary absorptions, layered, independent polymerizations and organic transformations may be performed in parallel under a single broadband emission source, such as sunlight.

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