Heterogeneity of polymers

Glockner, G. Analysis of Compositional and Structural Heterogeneitis of Polymer by Non-Exclusion HPCL. Vol. 79, pp. 159—214. 

The measurement of light scattering is the most widely used approach for the determination of M . This technique is based on the optical heterogeneity of polymer solutions and was developed by Nobel laureate Peter Debye in 1944. 

The problem of molecular weight distribution (MWD) and functionality type distribution (FTD) belongs by definition to an extensive problem of molecular heterogeneity of polymers. In the synthesis of a polymer with the requested properties, e.g. a telechelic polymer, one is always faced with different types of polydispersity the macromolecules can be of different length, they can have a different number of functional groups, i.e. be mono-, bifunctional, etc., they can be branched (star-, comb- or tree-like) and, finally, they can be cyclic. 

Analysis of Composi tional and Structural Heterogeneities of Polymers... 

---