Kinetic study of the reaction between molybdenum trioxide and gaseous carbon tetrachloride

1994 ◽  
Vol 72 (2) ◽  
pp. 289-295 ◽  
Author(s):  
M. Del C. Ruiz ◽  
J. B. Rivarola ◽  
O. D. Quiroga
1982 ◽  
Vol 53 (8) ◽  
pp. 5908-5919 ◽  
Author(s):  
Richard A. Gottscho ◽  
Gerald Smolinsky ◽  
Randolph H. Burton

1998 ◽  
Vol 10 (4) ◽  
pp. 974-979 ◽  
Author(s):  
H. C. Zeng ◽  
C. W. Sheu ◽  
H. C. Hia

It has been found that a system consisting of manganese carbonyl and a low concentration of carbon tetrachloride can act as an efficient photoinitiator of vinyl polymerization. This paper describes a kinetic study of the mechanism of photoinitiation at λ = 4358 Å, in which methyl methacrylate was the monomer. Trichloromethyl radicals are shown to be the initiating species. The main observations are consistent with a reaction scheme in which a primary product F of the photolysis of the carbonyl forms an adduct with carbon tetrachloride. This adduct may either dissociate into trichloromethyl radicals or be destroyed by reaction with F . Suggestions are made as to the chemical nature of F . Other mechanisms are considered which explain certain of the kinetic features observed. The quantum yield of photoinitiation is a function of [CCl 4 ]/ I abs and rises monotonically with a limit of unity.


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