Electron Spin Resonance Estimation of Propagation Rate Constants of Radical Polymerization of Benzyl Methacrylate

1998 ◽  
Vol 31 (25) ◽  
pp. 9078-9080 ◽  
Author(s):  
Tetsuya Noda ◽  
Yotaro Morishima ◽  
Mikiharu Kamachi ◽  
Atsushi Kajiwara
Keyword(s):  
Electron Spin Resonance ◽  
Radical Polymerization ◽  
Electron Spin ◽  
Rate Constants ◽  
Propagation Rate ◽  
Spin Resonance

Propagation rate coefficients from electron spin resonance studies of the emulsion polymerization of methyl methacrylate

1986 ◽  
Vol 19 (5) ◽  
pp. 1303-1308 ◽  
Author(s):  
Mathew J. Ballard ◽  
Robert G. Gilbert ◽  
Donald H. Napper ◽  
Peter J. Pomery ◽  
Paul W. O'Sullivan ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Methyl Methacrylate ◽  
Emulsion Polymerization ◽  
Electron Spin ◽  
Propagation Rate ◽  
Rate Coefficients ◽  
Spin Resonance

An Electron Spin Resonance Study of Some Reactions of Pentafluorosulfuranyl (SF5)

1975 ◽  
Vol 53 (16) ◽  
pp. 2361-2364 ◽  
Author(s):  
John Charles Tait ◽  
James Anthony Howard
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Rate Constants ◽  
Arrhenius Equation ◽  
Kinetic Studies ◽  
Electron Spin Resonance Study ◽  
Order Process ◽  
First Order ◽  
Spin Resonance ◽  
Spin Resonance Study

A kinetic electron spin resonance study of the self-reaction of SF5 and a spectroscopic and kinetic e.s.r. study of the reaction of SF5 with 1,1-di-t-butylethylene are reported. This radical undergoes self-reaction by a second-order process and the rate constants are given by the Arrhenius equation log 2k1(M−1 s−1) = (10.3 ± 0.5) − (1.7 ± 0.5)/θ where θ = 2.303RT kcal mol−1. It adds to 1,1-di-t-butylethylene to give (t-Bu)2CCH2SF5 which decomposes by a first-order process with rate constants that obey the expression log k2(s−1) = (13 ± 0.4) − (10 ± 0.2)/θ. Both these rate constants are pertinent to kinetic studies of the photoinduced addition of SF5C1 to olefins.

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