The polydispersity index is a ratio between two different averages of this quantity, the distribution of which is precisely controlled in ATRP and other "living" methods.
The polydispersity index is a ratio between two different averages of this quantity, the distribution of which is precisely controlled in ATRP and other "living" methods. It is raised to the power a in order to obtain the intrinsic viscosity in the Mark-Houwink equation, while it's number-averaged type is inversely proportional to fractional conversion via the Carouthers equation. It shows a bimodal distribution in systems displaying auto-acceleration. For linear molecules, using a polystyrene standard in gel-permeation chromatography experiments can be used to calculate it. For non-polymers, this quantity varies between isotopomers, and can be obtained from molar amount by multiplying by Avogadro's number. For 10 points, name this quantity often measured by adding the atomic weights of the constituents of a molecule.
The polydispersity index is a ratio between two different averages of this quantity, the distribution of which is precisely controlled in ATRP and other "living" methods.
{Molecular weight} or {Molecular mass}