Reduced viscosity

Reduced viscosity is equal to the ratio of the relative viscosity increment ( η i {displaystyle eta _{i}} ) to the mass concentration of the polymer. Reduced viscosity is equal to the ratio of the relative viscosity increment ( η i {displaystyle eta _{i}} ) to the mass concentration of the polymer. Reduced viscosity: η i c {displaystyle {frac {eta _{i}}{c}}} . The unit must be specified; mL/g is recommended. Relative viscosity increment: η i = η − η s η s {displaystyle eta _{i}={frac {eta -eta _{s}}{eta _{s}}}}