Kinetics of benzophenone ketyl free radicals recombination in a polymer: reactivity in the polymer cage vs. reactivity in the polymer bulk

2015 ◽  
Vol 14 (5) ◽  
pp. 891-896 ◽  
Author(s):  
Peter P. Levin ◽  
Alexei F. Efremkin ◽  
Igor V. Khudyakov
Keyword(s):  
Free Radicals ◽  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Laser Flash ◽  
Decay Kinetics ◽  
Temperature Range ◽  
Polymer Bulk ◽  
Poly Ethylene ◽  
Kinetics Of ◽  
Soft Rubber

The decay kinetics of intermediates produced under photolysis of benzophenone (B) dissolved in soft rubber poly(ethylene-co-butylene) films (abbreviated asE) was studied by ns laser flash photolysis in the temperature range of 263–313 K.

Decay Kinetics of Benzophenone Triplets and Corresponding Free Radicals in Soft and Rigid Polymers Studied by Laser Flash Photolysis

2013 ◽  
Vol 90 (2) ◽  
pp. 369-373 ◽  
Author(s):  
Peter P. Levin ◽  
Alexei F. Efremkin ◽  
Natalie B. Sultimova ◽  
Valery V. Kasparov ◽  
Igor V. Khudyakov
Keyword(s):  
Free Radicals ◽  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Laser Flash ◽  
Decay Kinetics ◽  
Rigid Polymers ◽  
Kinetics Of

scholarly journals Kinetics of the BrO + HO2 reaction over the temperature range T = 246–314 K

2017 ◽  
Vol 19 (34) ◽  
pp. 23345-23356 ◽  
Author(s):  
Michael K. M. Ward ◽  
David M. Rowley
Keyword(s):  
Gas Phase ◽  
Absorption Spectroscopy ◽  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Ambient Pressure ◽  
Laser Flash ◽  
Ultraviolet Absorption ◽  
Temperature Range ◽  
Ultraviolet Absorption Spectroscopy ◽  
Kinetics Of

The kinetics of the reaction between gas phase BrO and HO2 radicals, BrO + HO2 → HOBr + O2 (1), have been studied over the atmospherically relevant temperature range T = 246–314 K and at ambient pressure, p = 760 ± 20 Torr, using laser flash photolysis coupled with ultraviolet absorption spectroscopy.

Kinetics of the Reaction of Electron Deficient Olefins with Nitrile Ylides Generated by Laser Flash Photolysis of Substituted Azirines

1983 ◽  
Vol 22 (8) ◽  
pp. 625-627 ◽  
Author(s):  
Nicholas J. Turro ◽  
David A. Hrovat ◽  
Ian R. Gould ◽  
Albert Padwa ◽  
William Dent ◽  
...  
Keyword(s):  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Laser Flash ◽  
Kinetics Of

scholarly journals Kinetic studies of C1 and C2 Criegee intermediates with SO2 using laser flash photolysis coupled with photoionization mass spectrometry and time resolved UV absorption spectroscopy

2018 ◽  
Vol 20 (34) ◽  
pp. 22218-22227 ◽  
Author(s):  
N. U. M. Howes ◽  
Z. S. Mir ◽  
M. A. Blitz ◽  
S. Hardman ◽  
T. R. Lewis ◽  
...  
Keyword(s):  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Kinetic Studies ◽  
Laser Flash ◽  
Major Product ◽  
Time Resolved ◽  
Photoionization Mass Spectrometry ◽  
Criegee Intermediates ◽  
Wide Range ◽  
Kinetics Of

Kinetics of CH2OO + SO2 confirmed over a wide range of [SO2]. Acetaldehyde observed as a major product of the reaction of CH3CHOO + SO2.

scholarly journals Onium salts improve the kinetics of photopolymerization of acrylate activated with visible light

RSC Advances ◽  
2020 ◽  
Vol 10 (42) ◽  
pp. 24817-24829 ◽  
Author(s):  
Janina Kabatc ◽  
Katarzyna Iwińska ◽  
Alicja Balcerak ◽  
Dominika Kwiatkowska ◽  
Agnieszka Skotnicka ◽  
...  
Keyword(s):  
Steady State ◽  
Visible Light ◽  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Laser Flash ◽  
Nanosecond Laser ◽  
Chemical Mechanisms ◽  
Onium Salts ◽  
Nanosecond Laser Flash Photolysis ◽  
Kinetics Of

The chemical mechanisms were investigated by steady state photolysis and nanosecond laser flash photolysis experiments. A mechanism for initiating polymerization using both onium salts is proposed here.

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