Condensed-Mode Cooling for Ethylene Polymerization: The Influence of Inert Condensing Agent on the Polymerization Rate

2014 ◽  
Vol 215 (9) ◽  
pp. 873-878 ◽  
Author(s):  
Montree Namkajorn ◽  
Arash Alizadeh ◽  
Ekasith Somsook ◽  
Timothy F. L. McKenna
Keyword(s):  
Ethylene Polymerization ◽  
Polymerization Rate

Condensed Mode Cooling for Ethylene Polymerization: Part II. The Effect of Different Condensable Comonomers and Hydrogen on Polymerization Rate

2015 ◽  
Vol 216 (9) ◽  
pp. 985-995 ◽  
Author(s):  
Arash Alizadeh ◽  
Montree Namkajorn ◽  
Ekasith Somsook ◽  
Timothy F. L. McKenna
Keyword(s):  
Ethylene Polymerization ◽  
Polymerization Rate

Condensed Mode Cooling for Ethylene Polymerization: Part I. The Effect of Different Induced Condensing Agents on Polymerization Rate

2015 ◽  
Vol 216 (8) ◽  
pp. 903-913 ◽  
Author(s):  
Arash Alizadeh ◽  
Montree Namkajorn ◽  
Ekasith Somsook ◽  
Timothy F. L. McKenna
Keyword(s):  
Ethylene Polymerization ◽  
Polymerization Rate ◽  
Condensing Agents

The effect of electrondonors on the polymerization kinetics of isoprene

1980 ◽  
Vol 45 (12) ◽  
pp. 3338-3346
Author(s):  
Miroslav Kašpar ◽  
Jiří Trekoval
Keyword(s):  
Induction Period ◽  
Ethyl Ether ◽  
Reaction Order ◽  
Propagation Rate ◽  
Reaction Scheme ◽  
Polymerization Kinetics ◽  
Polymerization Rate ◽  
Constant Concentration ◽  
Initial Concentration ◽  
Kinetics Of

The effect of small additions of 1-octene, butyl ethyl ether and triethylamine on the polymerization kinetics of isoprene (2-methyl-1,3-butadiene) in benzene initiated with butyllithium was investigated by employing the GLC analysis. The addition of 1-octane was reflected only in a shorter induction period of the reaction; the effect on the propagation rate was insignificant. With the increasing amount of butyl ethyl ether, the polymerization rate increases linearly, while the reaction order with respect to the concentration of triethylamine is variable and increases from 0.33 to 0.66 with the increasing concentration of the initiator. For a constant concentration of triethylamine, the reaction order with respect to the initial concentration of the initiator was found to vary considerably, reaching even negative values. A reaction scheme was suggested, taking into account the competition between two different solvates of alkyllithium.

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