Molecular Weight Of Polyvinylpyrrolidone

PVP is divided into four levels according to its average molecular weight. It is customary to express it by K value. Different K values represent the corresponding average molecular weight range of PVP. The K value is actually a characteristic value related to the relative viscosity of the PVP aqueous solution, and the viscosity is a physical quantity related to the molecular weight of the polymer. Therefore, the K value can be used to characterize the average molecular weight of PVP. Generally, the greater the K value, the greater the viscosity and the stronger the adhesiveness.