Photobleachable bis-chalcones-based oxime ester dyes for radical visible photopolymerization DOI
Xiang Wu, Shang Gong, Zihao Chen

et al.

Dyes and Pigments, Journal Year: 2022, Volume and Issue: 205, P. 110556 - 110556

Published: July 6, 2022

Language: Английский

Recent advances on coumarin-based photoinitiators of polymerization DOI Creative Commons
Frédéric Dumur

European Polymer Journal, Journal Year: 2021, Volume and Issue: 163, P. 110962 - 110962

Published: Dec. 21, 2021

Language: Английский

Citations

62
Effect of Decarboxylation on the Photoinitiation Behavior of Nitrocarbazole-Based Oxime Esters DOI
Shaohui Liu, Nicolas Giacoletto, Michael Schmitt

et al.

Macromolecules, Journal Year: 2022, Volume and Issue: 55(7), P. 2475 - 2485

Published: March 30, 2022

A series of 50 oxime esters bearing various substituents were designed and synthesized as photoinitiators (48 them never before only B1 B10 reported). Good light absorption properties in the visible range observed for these esters. Some structures exhibited better photoinitiation abilities than diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO) upon exposure to a LED@405 nm. Interestingly, PIs with methyl substituent on ester group have performance others. Substituent effects investigated through molecular orbitals calculations, detection CO2, investigation generated free radicals. The results demonstrate that exert major ability via decarboxylation reaction. In addition, chemical mechanism was proposed. 3D printed objects successfully obtained by using most reactive photoinitiator, their thermal initiation behaviors several also studied (dual thermal/photochemical initiator behavior).

Language: Английский

Citations

48
Recent advances on visible light Phenothiazine-based photoinitiators of polymerization DOI
Frédéric Dumur

European Polymer Journal, Journal Year: 2022, Volume and Issue: 165, P. 110999 - 110999

Published: Jan. 15, 2022

Language: Английский

Citations

45
A review on recently proposed oxime ester photoinitiators DOI Creative Commons
Fatima Hammoud, Akram Hijazi, Michael Schmitt

et al.

European Polymer Journal, Journal Year: 2023, Volume and Issue: 188, P. 111901 - 111901

Published: Feb. 17, 2023

Language: Английский

Citations

41
High-Performance Photoinitiating Systems for LED-Induced Photopolymerization DOI Open Access
Shaohui Liu, Timur Borjigin, Michael Schmitt

et al.

Polymers, Journal Year: 2023, Volume and Issue: 15(2), P. 342 - 342

Published: Jan. 9, 2023

Currently, increasing attention has been focused on light-emitting diodes (LEDs)-induced photopolymerization. The common LEDs (e.g., LED at 365 nm and 405 nm) possess narrow emission bands. Due to their light absorption properties, most commercial photoinitiators are sensitive UV cannot be optimally activated under visible irradiation. Although many have designed for LED-induced free radical polymerization cationic polymerization, there is still the issue of mating between LEDs. Therefore, development novel photoinitiators, which could applied irradiation, significant. Many photoinitiating systems reported in past decade. In this review, some recently developed used photopolymerization, mainly 5 years, summarized categorized as Type Ⅰ Ⅱ dye-based systems. addition, properties photoinitiation efficiencies discussed.

Language: Английский

Citations

32
Recent advances on photobleachable visible light photoinitiators of polymerization DOI Creative Commons
Frédéric Dumur

European Polymer Journal, Journal Year: 2023, Volume and Issue: 186, P. 111874 - 111874

Published: Feb. 1, 2023

Language: Английский

Citations

30
Photopolymerization using bio-sourced photoinitiators DOI
Hong Chen, Di Zhu,

Tuba Kavalli

et al.

Polymer Chemistry, Journal Year: 2023, Volume and Issue: 14(31), P. 3543 - 3568

Published: Jan. 1, 2023

This review mainly summarizes the current progress in photopolymerization for bio-based photoinitiators/photoinitiating systems, along with presents conditions monomers derived from natural products.

Language: Английский

Citations

27
Novel High‐Performance Glyoxylate Derivative‐Based Photoinitiators for Free Radical Photopolymerization and 3D Printing with Visible LED DOI Creative Commons
Tong Gao, Yijun Zhang,

Fabrice Morlet‐Savary

et al.

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: March 1, 2024

Investigations concerning the glyoxylate moiety as a photocleavable functional group for visible light photoinitiators, particularly in initiation of free radical photopolymerization remain limited. This study introduces nine innovative carbazole-based ethyl derivatives (CEGs), which are synthesized and found to exhibit excellent photoinitiation abilities monocomponent photoinitiating systems. Notably, these structures demonstrate robust absorption near-UV/visible range, surpassing commercial photoinitiators. Moreover, newly developed show higher acrylate function conversions compared benchmark photoinitiator (MBF) photopolymerization. Elucidation mechanism CEGs is achieved through comprehensive analysis involving decarboxylation reaction electron spin resonance trapping. Furthermore, their practical utility confirmed during direct laser writing 3D printing processes, enabling successful fabrication printed objects. pioneering concepts effective strategies molecular design novel showcasing potential highly advantageous applications printing.

Language: Английский

Citations

12
Recent advances on visible light Coumarin-based oxime esters as initiators of polymerization DOI Creative Commons
Zheng Liu, Frédéric Dumur

European Polymer Journal, Journal Year: 2022, Volume and Issue: 177, P. 111449 - 111449

Published: July 30, 2022

Language: Английский

Citations

39
Recent advances on carbazole-based oxime esters as photoinitiators of polymerization DOI Creative Commons
Frédéric Dumur

European Polymer Journal, Journal Year: 2022, Volume and Issue: 175, P. 111330 - 111330

Published: June 13, 2022

Language: Английский

Citations

38