Collect. Czech. Chem. Commun.
1983, 48, 2914-2923
https://doi.org/10.1135/cccc19832914
The characteristic ratio of butadiene-styrene and butadiene-acrylonitrile copolymers
Miloslav Bohdanecký and Vladimír Petrus
Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6
Abstract
A method advanced recently is used to estimate the characteristic ratio C∞ for statistical butadiene-styrene and butadiene-acrylonitrile copolymers from the reported data of the limiting viscosity number and sedimentation coefficient. The results are compared with those of the traditional methods. The dependences of C∞ on the copolymer composition are discussed and interpreted in terms of steric and/or dipole-dipole interactions of adjacent monomeric units.