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. 2022 Feb 28;14(5):979. doi: 10.3390/polym14050979

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Absorption spectra for each photoinitiator. BAPO—phenylbis (2,4,6-trimethylbenzoyl) phosphine oxide; TPO—diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide; TPO-L—ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate.