Calculated values of viscosity, thermal conductivity, electrical
conductivity, density and specific enthalpy of plasma formed in five
different insulators vapours (PE, POM, PMMA, PC and PA66) are presented. The
calculations, which assume local thermodynamic equilibrium, are performed
for three pressures (1 atm, 10 atm, 100 atm) in the temperature range from
5000 to 30000 K. The results for PE, PMMA and PA66 are compared with those
of other authors at atmospheric pressure. Significant discrepancies are
found; these are attributed both to differences in the collision integrals
and to the formulation used in calculating the transport coefficients. We
give all the data for the potential interaction and the formulation
necessary to obtain reliable values of transport coefficients.