Electric conductivity of polybutadienyl- and polyisoprenyl-lithium in tetrahydrofurane and dimethoxyethane

The electric conductivity of polybutadienyl-lithium and polyisoprenyl-lithium has been investigated in tetrahydrofuran and dimethoxyethane solutions over wide temperature and concentration ranges (0 to ?70°; 7·10^?2 to 1·10^?7 and 5·10^?3 to 1·10^?7 mol/l). Dissociation constants, enthalpy and entropy of dissociation of ion pairs, relative constants for formation of ion triplets, and interionic distances were calculated for each system investigated. The nature of “living” chains under these conditions is considered.