polydispersitetsindeks
Polydispersity index, often abbreviated as PDI, is a measure used to quantify the distribution of molecular masses in a sample of polymers. It is a dimensionless number that indicates the breadth of the molecular weight distribution. A PDI value of 1 signifies that all polymer molecules in the sample have the same molecular weight, which is characteristic of a monodisperse sample. In reality, perfect monodispersity is rarely achieved.
For most synthetic polymers, the PDI is typically greater than 1. A higher PDI value indicates a
The polydispersity index is an important parameter in polymer science and engineering as it influences many