Meta-substituent effects on benzyl free-radical stability

1990 ◽  
Vol 55 (3) ◽  
pp. 1040-1043 ◽  
Author(s):  
Thomas H. Fisher ◽  
Stephen M. Dershem ◽  
M. Lynn Prewitt
Keyword(s):  
Free Radical ◽  
Substituent Effects

Substituent Effects on Photoinitiation Ability of Coumarin-Based Oxime-Ester Photoinitiators for Free Radical Photopolymerization

2021 ◽  
Author(s):  
Jacques Lalevée ◽  
Fatima Hammoud ◽  
Nicolas giacoletto ◽  
Guillaume Noirbent ◽  
Bernadette Graff ◽  
...  
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Substituent Effects ◽  
Free Radical Photopolymerization

In this paper, a series of coumarin chromophore-based oxime-esters was designed and synthesized as visible light photoinitiators (PIs). Interestingly, upon exposure to irradiation of a LED at 405 nm, the...

Free radical-substituent effects (II); steric effects and sulfur participation

1973 ◽  
Vol 14 (4) ◽  
pp. 309-312 ◽  
Author(s):  
J.W. Timberlake ◽  
A.W. Garner ◽  
M.L. Hodges
Keyword(s):  
Free Radical ◽  
Substituent Effects ◽  
Steric Effects

Substituent Effects on a Photo-Induced Alternation of the Lower Critical Solution Temperatures of Poly(N-isopropylacrylamide) with Azobenzene Units

2001 ◽  
Vol 710 ◽  
Author(s):  
Haruhisa Akiyama ◽  
Nobuyuki Tamaoki
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Lower Critical Solution Temperature ◽  
Water Solubility ◽  
Substituent Effects ◽  
Ultra Violet ◽  
Wettability Alteration ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Soluble Polymers

ABSTRACTWe synthesized copolymers of N-isopropylacrylamide (NIPAM) and azobenzene-containing acrylates or acrylamides by free radical polymerization, and investigated the water solubility of these polymers upon irradiation with ultra-violet and visible light. The solubility depended on concentration and structure of photoreactive azobenzene unit in the polymers. The soluble polymers showed the lower critical solution temperature, which was varied along with light irradiation. Photo-induced large wettability alteration was observed in the film.

scholarly journals Substituent Effects on Photoinitiation Ability of Monoaminoanthraquinone‐Based Photoinitiating Systems for Free Radical Photopolymerization under LEDs

2020 ◽  
Vol 41 (18) ◽  
pp. 2000166 ◽  
Author(s):  
Jing Zhang ◽  
Jacques Lalevée ◽  
Nicholas S. Hill ◽  
Jonathan Kiehl ◽  
Di Zhu ◽  
...  
Keyword(s):  
Free Radical ◽  
Substituent Effects ◽  
Free Radical Photopolymerization
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