Mark-Houwink Equation

n Also referred to as Kuhn-Mark-Houwink-Sakurada equation; allows prediction of the viscosity average molecular weight Mv for a specific polymer in a dilute solution of solvent by \([\eta ] = KM_v^a \) where K is a constant for the respective material and a is a branching coefficient; K and a (sometimes aη) can be determined by a plot of log [η] vs. log \(M_v^a \) and the slope is a and intercept on the Y axis is K. (Kamide K, Dobashi T (2000) Physical chemistry of polymer solutions. Elsevier, New York; Physical properties of polymers handbook. Mark JE (ed). Springer, New York, 1996; Elias HG (1977) Macromolecules, vol. 1–2, Plenum, New York)