https://doi.org/10.1351/goldbook.12251
Equation describing the dependence of the inherent viscosity, \(\eta_{\rm{inh}}\), of a dilute solution on the mass concentration of the solute, \(c\), with \[\eta_{\rm{inh}} = (\ln \eta_{\rm{r}})/c = [\eta] + k_{\rm{K}}[\eta]^{2} c\] where \(k_{\rm{K}}\) is the Kraemer coefficient and \([\eta]\) is the intrinsic viscosity.