VISCOSITY OF LINEAR OLIGOMERS OF CYCLOPEN TENES

Viscosity of linear oligomers of cyclopentene was studied as a functio n of the molecular mass, chain microstructure, and temperature. Critic al molecular mass of polypentenylene and activation energy of viscous flow were shown to increase with increasing the content of cis units i n the polymer chain. Polypentenylene is characterized by high thermody namic flexibility of polymer chain; this is associated with low values of critical molecular mass and activation energy of viscous flow.