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Huggins Equation

n In dilute polymer solutions η sp /c = [η] + k′[η]2c, where η sp and [η] are the specific and intrinsic viscosities, c = the concentration in g/dL, and k′ = the Huggins constant; one of several equations (Schulz, Blasche, Huggins and Kraemer) to extracted values c→0 or infinite dilution of solute. By making viscosity measurements at several concentrations, plotting η sp /c versus