scholarly journals Novel ketone derivative-based photoinitiating systems for free radical polymerization under mild conditions and 3D printing

2020 ◽  
Vol 11 (36) ◽  
pp. 5767-5777 ◽  
Author(s):  
Yangyang Xu ◽  
Guillaume Noirbent ◽  
Damien Brunel ◽  
Zhaofu Ding ◽  
Didier Gigmes ◽  
...  
Keyword(s):  
Free Radical ◽  
3D Printing ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Mild Conditions

Novel ketone derivatives as efficient photoinitiators for the free radical polymerization of acrylates and application in 3D printing.

New bimolecular photoinitiating systems based on terphenyl derivatives as highly efficient photosensitizers for 3D printing application

2020 ◽  
Vol 11 (4) ◽  
pp. 922-935 ◽  
Author(s):  
Emilia Hola ◽  
Joanna Ortyl ◽  
Magdalena Jankowska ◽  
Maciej Pilch ◽  
Mariusz Galek ◽  
...  
Keyword(s):  
Free Radical ◽  
3D Printing ◽  
Radical Polymerization ◽  
Cationic Polymerization ◽  
Free Radical Polymerization ◽  
Iodonium Salts ◽  
Highly Efficient

New 2-(diethylamino)-4,6-diphenyl-benzene-1,3-dicarbonitrile derivatives were proposed as photoinitiators in conjunction with iodonium salts for: (i) the cationic polymerization, (ii) the free-radical polymerization, and (iii) the synthesis of IPNs.

Disubstituted Aminoanthraquinone-Based Photoinitiators for Free Radical Polymerization and Fast 3D Printing under Visible Light

2018 ◽  
Vol 51 (24) ◽  
pp. 10104-10112 ◽  
Author(s):  
J. Zhang ◽  
K. Launay ◽  
N. S. Hill ◽  
D. Zhu ◽  
N. Cox ◽  
...  
Keyword(s):  
Free Radical ◽  
3D Printing ◽  
Visible Light ◽  
Radical Polymerization ◽  
Free Radical Polymerization

New copper(i) complex based initiating systems in redox polymerization and comparison with the amine/benzoyl peroxide reference

2017 ◽  
Vol 8 (28) ◽  
pp. 4088-4097 ◽  
Author(s):  
P. Garra ◽  
A. Kermagoret ◽  
A. Al Mousawi ◽  
F. Dumur ◽  
D. Gigmes ◽  
...  
Keyword(s):  
Free Radical ◽  
Benzoyl Peroxide ◽  
Radical Polymerization ◽  
Copper Complex ◽  
Free Radical Polymerization ◽  
Redox Polymerization ◽  
Mild Conditions

Novel copper complex based initiating systems for redox free radical polymerization (FRP) of methacrylate resins under mild conditions are proposed.

scholarly journals Ethylene free radical polymerization in supercritical ethylene/CO2 mixture

2020 ◽  
Vol 11 (5) ◽  
pp. 1001-1009
Author(s):  
Ali Al Rida Hmayed ◽  
Sébastien Norsic ◽  
Vincent Monteil ◽  
Jean Raynaud
Keyword(s):  
Free Radical ◽  
Benzoyl Peroxide ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Mild Conditions

Ethylene free radical polymerization in supercritical CO2/ethylene mixture under mild conditions (<100 °C and <300 bar) has been achieved to produce polyethylene, functionalized with benzoate moieties when benzoyl peroxide was used as initiator.

scholarly journals Allyloxy ketones as efficient photoinitiators with high migration stability in free radical polymerization and 3D printing

2021 ◽  
Vol 185 ◽  
pp. 108900 ◽  
Author(s):  
Yangyang Xu ◽  
Guillaume Noirbent ◽  
Damien Brunel ◽  
Zhaofu Ding ◽  
Didier Gigmes ◽  
...  
Keyword(s):  
Free Radical ◽  
3D Printing ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
High Migration

scholarly journals Aqueous Dispersions of Nonspherical Polyethylene Nanoparticles from Free-Radical Polymerization under Mild Conditions

2010 ◽  
Vol 49 (38) ◽  
pp. 6810-6812 ◽  
Author(s):  
Etienne Grau ◽  
Pierre-Yves Dugas ◽  
Jean-Pierre Broyer ◽  
Christophe Boisson ◽  
Roger Spitz ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Aqueous Dispersions ◽  
Mild Conditions

scholarly journals Novel Push–Pull Dyes Derived from 1H-cyclopenta[b]naphthalene-1,3(2H)-dione as Versatile Photoinitiators for Photopolymerization and Their Related Applications: 3D Printing and Fabrication of Photocomposites

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1196 ◽  
Author(s):  
Ke Sun ◽  
Shaohui Liu ◽  
Corentin Pigot ◽  
Damien Brunel ◽  
Bernadette Graff ◽  
...  
Keyword(s):  
Free Radical ◽  
3D Printing ◽  
Radical Polymerization ◽  
Three Dimensional ◽  
Free Radical Polymerization ◽  
Research Field ◽  
Polymerization Reaction ◽  
Practical Applications ◽  
Fluorescence Measurements ◽  
Active Research

A series of eleven push–pull chromophores with specific structures have been designed for the free radical polymerization of acrylates, but also for the fabrication of photocomposites and 3D-printed structures. New photoinitiating systems comprising the different push–pull dyes showed excellent photochemical reactivities at 405 nm. Notably, polymerization reactions could be initiated with light-emitting diodes (LEDs) which constitute a unique opportunity to promote the free radical polymerization under mild conditions, i.e., low light intensity (e.g., sunlight) and under air. Photopolymerization is an active research field, and push–pull dyes have already been investigated for this purpose. Besides, it remains of crucial interest to investigate new reactive structures capable of efficiently initiating photopolymerization reactions. The plausible potential of these structures to act as efficient photoinitiators in vat photopolymerization (or 3D printing) and fabrication of photocomposites prompts us to select eleven new push–pull dyes to design multi-component photoinitiating systems activable with LEDs emitting at 405 nm. Precisely, a tertiary amine, i.e., ethyl dimethylaminobenzoate (EDB) used as an electron/hydrogen donor and an iodonium salt used as an electron acceptor were selected to behave as powerful co-initiators to construct three-component photoinitiating systems (PISs) with the different push–pull dyes. Among these new PISs, dye 8 and 9-based PISs could efficiently promote the free radical photopolymerization of acrylates upon exposure to a LED emitting at 405 nm also upon sunlight irradiation, highlighting their huge performance. Photoinitiating abilities could be explained on the basis of steady state photolysis experiments. Fluorescence measurements and electron spin resonance (ESR) spin-trapping experiments were also performed to obtain a deeper insight into the chemical mechanisms supporting the polymerization reaction and determine the way the initiating species, i.e., the radicals, are observed. Finally, two investigated dye-based PISs were applied to the fabrications of photocomposites. Three-dimensional patterns with excellent spatial resolutions were generated by the laser writing technique to identify the effects of photopolymerization of acrylates both in the absence and presence of fillers (silica). Interestingly, comparison between the 3D objects fabricated by the PISs/monomer systems and the PISs/monomer/filler photocomposites indicates that the newly designed photocomposites are suitable for practical applications.

scholarly journals Aqueous Dispersions of Nonspherical Polyethylene Nanoparticles from Free-Radical Polymerization under Mild Conditions

2010 ◽  
Vol 122 (38) ◽  
pp. 6962-6964 ◽  
Author(s):  
Etienne Grau ◽  
Pierre-Yves Dugas ◽  
Jean-Pierre Broyer ◽  
Christophe Boisson ◽  
Roger Spitz ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Aqueous Dispersions ◽  
Mild Conditions

Non-isothermal Kinetics of Free Radical Polymerization of 2-Phenylethyl (Meth)acrylate

2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Isothermal Kinetics ◽  
Kinetics Of
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