the micro-structure of polybutadiene was studied for naphthalene lithium and butyl lithium as initiators
extracted naphtha and cyclohexane as solvents
and THF as a polar additive. According to experimental data
the following mechanism of polymerization was proposed: CH2CH=CHCH2Li Based on the kinetics of the chemical reactions and the theory of total probability
a quantitative relation between the content of the 1
2-struc-ture in the product(Bv) and the concentration of the tetrahydrofuran was deduced: where From literature data including Et2O as well as tetrahydrofuran as the polar additive
the above equation has been generalized to: where: P. A. is the concentration of the additive.