Silane/iodonium salt as redox/thermal/photoinitiating systems in radical and cationic polymerizations for laser write and composites

2020 ◽  
Vol 11 (4) ◽  
pp. 857-866 ◽  
Author(s):  
Dengxia Wang ◽  
Patxi Garra ◽  
Jean Pierre Fouassier ◽  
Jacques Lalevée
Keyword(s):  
Iodonium Salt ◽  
Cationic Polymerizations

Methylphenylsilane (MPS) and octadecylsilane (ODS) are originally proposed here combined with iodonium salt as a highly versatile triple initiating system for redox, photo and thermal polymerizations (both radical and cationic).

scholarly journals Panchromatic Copper Complexes for Visible Light Photopolymerization

Photochem ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 167-189
Author(s):  
Alexandre Mau ◽  
Guillaume Noirbent ◽  
Céline Dietlin ◽  
Bernadette Graff ◽  
Didier Gigmes ◽  
...  
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Radical Polymerization ◽  
Copper Complexes ◽  
Free Radical Polymerization ◽  
Photoluminescence Properties ◽  
System Formation ◽  
Iodonium Salt ◽  
Visible Light Photopolymerization ◽  
Cationic Polymerizations

In this work, eleven heteroleptic copper complexes were designed and studied as photoinitiators of polymerization in three-component photoinitiating systems in combination with an iodonium salt and an amine. Notably, ten of them exhibited panchromatic behavior and could be used for long wavelengths. Ferrocene-free copper complexes were capable of efficiently initiating both the radical and cationic polymerizations and exhibited similar performances to that of the benchmark G1 system. Formation of acrylate/epoxy IPNs was also successfully performed even upon irradiation at 455 nm or at 530 nm. Interestingly, all copper complexes containing the 1,1′-bis(diphenylphosphino)ferrocene ligand were not photoluminescent, evidencing that ferrocene could efficiently quench the photoluminescence properties of copper complexes. Besides, these ferrocene-based complexes were capable of efficiently initiating free radical polymerization processes. The ferrocene moiety introduced in the different copper complexes affected neither their panchromatic behaviors nor their abilities to initiate free radical polymerizations.

Design, Synthesis and Use of Phthalocyanines as a New Class of Visible-Light Photoinitiators for Free-Radical and Cationic Polymerizations

2021 ◽  
Author(s):  
Davy-Louis Versace ◽  
Louise Breloy ◽  
Yusuf Yagci ◽  
Ismail Yilmaz ◽  
Ozgur Yavuz
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Design Synthesis ◽  
New Class ◽  
Optical Stability ◽  
Cationic Polymerizations

Phthalocyanines (Pcs) are interesting molecules offering a fascinating chemistry world which received tremendous interest in the last decade. Their certain features such as high thermal, chemical, and optical stability as...

Naphthoylenebenzimidazolone dyes as electron transfer photosensitizers for iodonium salt induced cationic photopolymerizations

2012 ◽  
Vol 95 (2) ◽  
pp. 252-259 ◽  
Author(s):  
Radosaw Podsiady ◽  
Anna Maruszewska ◽  
Radosaw Michalski ◽  
Andrzej Marcinek ◽  
Jolanta Koliska
Keyword(s):  
Electron Transfer ◽  
Iodonium Salt

E/Z-Selectivity Controlled by Participation of Internal Oxy Group During Electrophilic Substitution of Alk-1-enylboronate with Bis(2,4,6-trimethylpyridine)iodonium Salt

Synthesis ◽  
2017 ◽  
Vol 49 (13) ◽  
pp. 2913-2916 ◽  
Author(s):  
Morifumi Fujita ◽  
Hee Lee ◽  
Chisaki Ichihara ◽  
Takashi Sugimura
Keyword(s):  
Electrophilic Substitution ◽  
Iodonium Salt

Stereospecific inversion of configuration was observed in electrophilic iodo-substitution of 4-benzoyloxybut-1-enylboronate using bis(2,4,6-trimethylpyridine)iodine(I) salt, rationalized by participation of the internal benzoyloxy group.

A novel naphthalimide scaffold based iodonium salt as a one-component photoacid/photoinitiator for cationic and radical polymerization under LED exposure

2016 ◽  
Vol 7 (37) ◽  
pp. 5873-5879 ◽  
Author(s):  
N. Zivic ◽  
M. Bouzrati-Zerrelli ◽  
S. Villotte ◽  
F. Morlet-Savary ◽  
C. Dietlin ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Cationic Polymerization ◽  
Iodonium Salt

A strong drawback to overcome for photoinitiators of cationic polymerization or photoacids is their low photosensitivity for long wavelengths.

Relative Reactivities of Isobutylene, Styrene, and Ring-Substituted Styrenes in Cationic Polymerizations

2008 ◽  
Vol 41 (11) ◽  
pp. 3842-3851 ◽  
Author(s):  
Nagesh Kolishetti ◽  
Rudolf Faust
Keyword(s):  
Cationic Polymerizations

Moving Towards Greener Cationic Polymerizations

2015 ◽  
pp. 155-186 ◽  
Author(s):  
Stewart Lewis ◽  
Deivasagayam Dakshinamoorthy ◽  
Robert Mathers
Keyword(s):  
Cationic Polymerizations
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