Applications of Refractive Index to Polymer Characterization

Publisher Website
Google Scholar
Abstract
The Lorentz-Lorenz formula (relating refractive index, molecular weight, and density to molar refractivity) was shown to give unreliable results when applied to polymers. A new equation has been derived relating refractive index to the total parachor and number of bonds of a molecule which can be applied to polymers as well as monomers. The ratio of total bonds to parachor approaches a limiting value for a given polymer system which in turn can be related to the limiting refractive index of that polymer. Applications are made to polymer molecular weights, tacticity, and copolymer composition.

This publication has 2 references indexed in Scilit: