Citation: LI Jingjie, YU Yuguo. AN INVESTIGATION ON KINETICS AND REACTIVE SPECIES IN ANIONIC TELOMERIZATION OF BUTADIENE INITIATED BY n-BUTYLLITHIUM/N, N, N', N'-TETRAMETHYLETHYLENE DIAMINE*[J]. Chinese Journal of Polymer Science, ;1985, 3(4): 313-323. shu

AN INVESTIGATION ON KINETICS AND REACTIVE SPECIES IN ANIONIC TELOMERIZATION OF BUTADIENE INITIATED BY n-BUTYLLITHIUM/N, N, N', N'-TETRAMETHYLETHYLENE DIAMINE*

LI Jingjie ,
YU Yuguo

Received Date: 15 September 1984

The polymerization rate of butadiene in toluene initiated by n-butyllithium and tetramethyl ethy-lene diamine as well as the micro-structure and degree of association of polybutadiene were deter-mined. The effect of TMEDA/n-BuLi (abbr. A/Li) and temperature on the polymerization rate,molecular weight, molecular weight distribution and structure of polybutadiene was investigated. Ac-tivation energy of the propagation reaction and chain transfer reaction, together with the chain trans-fer reaction rate constant were estimated.Kinetic parameters and contribution of different reactive species to polymerization rate were calculated by Nonlinear Least-Squares Method.A kinetic equation was proposed.The mechanism of anionic chain transfer reaction was discussed.
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