Effect of the molecular mobility of polymers, occurring in the glassy or ru
bberlike state, on the transport of excess charge carriers in these systems
is, considered. The nonspherical character of the wavefunctions of molecul
ar orbitals in the hopping centers, the presence of a free fluctuation volu
me, the short-range order in the arrangement of hopping centers, and the re
tarded rotation of molecular groups are factors justifying the application
of a multiple trapping model. According to this model, the transport of exc
ess charge carriers takes place in the charge-transfer band in the presence
of traps distributed within a broad energy Interval. The main parameters o
f charge transfer in a number of polymers are presented. An analysis of the
se data leads to a conclusion that the translational mobility of segments i
n polymers in the rubberlike state plays no significant role in the charge
carrier transfer.