What is polydispersity?

Polydispersity refers to the heterogeneity or variation in the size, shape, or molecular weight of a population of particles, molecules, or polymers. It arises due to differences in the synthesis, purification, or processing of the particles or molecules, resulting in a range of sizes. Polydispersity can affect the properties and behavior of materials such as their solubility, viscosity, and reactivity. In contrast, monodispersity refers to a population of uniform size or molecular weight. Polydispersity is commonly measured using techniques such as dynamic light scattering, gel permeation chromatography, or electron microscopy.