where K and α are two parameters that depend on the solvent, polymer, and temperature. Values of these coefficients for several polymers and solvents are presented in Table 17.4. More complete tables are reported in different polymer handbooks [39]. Thus, given an experimental measurement of the intrinsic viscosity in the laboratory, and the values of K and α reported in tables from the literature, one can obtain the viscosity-average molar mass of a polymer, Mv.