Carbon-14 Tracer Study on the Origin of Tetranitromethane Carbon during the Nitration of Toluene

1962 ◽  
Vol 84 (5) ◽  
pp. 756-759 ◽  
Author(s):  
Frederick S. Holahan ◽  
Thomas C. Castorina ◽  
Joseph R. Autera ◽  
Samuel. Helf
Keyword(s):  
Tracer Study ◽  
Carbon 14

scholarly journals Carbon-14 tracer study of polyacrylate polymer in a wastewater plant

1990 ◽  
Vol 41 (10-11) ◽  
pp. 1165-1172 ◽  
Author(s):  
James E. Martin ◽  
Thomas Stevens ◽  
Gordon E. Bellen ◽  
Larry W. King ◽  
James M. Hylko
Keyword(s):  
Tracer Study ◽  
Carbon 14

Fischer-Tropsch synthesis: carbon-14 tracer study of alkene incorporation

1990 ◽  
Vol 4 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Li Min Tau ◽  
Hossein A. Dabbagh ◽  
Burtron H. Davis
Keyword(s):  
Tropsch Synthesis ◽  
Tracer Study ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Carbon 14

A tracer study of di- tert . butyl peroxide as an initiator for polymerization

1961 ◽  
Vol 262 (1309) ◽  
pp. 271-286 ◽  
Keyword(s):  
Isotope Effect ◽  
High Temperatures ◽  
Benzene Solution ◽  
Tracer Study ◽  
Polymer Molecules ◽  
Carbon 14 ◽  
Low Concentrations ◽  
End Groups ◽  
Butyl Peroxide ◽  
Butoxy Radical

Di- tert . butyl peroxide labelled with carbon-14 has been used to initiate the polymerization of styrene, and the resulting polymers have been analyzed for fragments derived from the peroxide. Polymers prepared in benzene solution contain both tert . butoxy and methyl end-groups, the proportions depending upon the conditions prevailing during polymerization; except at low concentrations of styrene and high temperatures, initiation is chiefly by the tert . butoxy radical giving polymer molecules with ether end-groups. In some diluents, initiation is largely by an indirect process in which the primary radicals abstract hydrogen from the diluent. There is an isotope effect in the dissociation of the tert . butoxy radical; introduction of carbon-14 into the radical reduces by about 7% the velocity constant for dissociation to give acetone at 130°C. Allowance must be made for this effect when using the labelled peroxide as a source of tert . butoxy radicals to be used in competitive studies of the reactivities of substances towards these radicals.

Carbon-14 tracer study of the dehydrocyclization of n-heptane

1971 ◽  
Vol 36 (2) ◽  
pp. 337-339 ◽  
Author(s):  
Burtron Hamilton Davis ◽  
Paul B. Venuto
Keyword(s):  
Tracer Study ◽  
Carbon 14

Carbon-14 Tracer Study of the High Temperature Oxidation of Propylene

1965 ◽  
Vol 87 (6) ◽  
pp. 1175-1179 ◽  
Author(s):  
E. Roderick White ◽  
Hubert G. Davis ◽  
Earl S. Hammack
Keyword(s):  
High Temperature ◽  
High Temperature Oxidation ◽  
Tracer Study ◽  
Temperature Oxidation ◽  
Carbon 14

A carbon-14 tracer study of the dehydrocyclization of n-heptane

1965 ◽  
Vol 4 (5) ◽  
pp. 594-601 ◽  
Author(s):  
J FEIGHAN ◽  
B DAVIS
Keyword(s):  
Tracer Study ◽  
Carbon 14
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