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Determination of microscopic interaction parameters of ternary polymer solutions with light scattering data
Author(s) -
Kappeler Ch.,
Schäfer L.
Publication year - 1992
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19920580112
Subject(s) - radius of gyration , scattering , random phase approximation , renormalization , polymer , light scattering , polystyrene , physics , statistical physics , materials science , thermodynamics , condensed matter physics , quantum mechanics , nuclear magnetic resonance
Using a renormalized form of the Random Phase Approximation (or Tree Graph Approximation) we analysed data on the zero angle scattering intensity and the apparent radius of gyration for the system polystyrene‐poly(methyl methacrylate)‐bromobenzene. Since the microscopic parameters of this system are known from the analysis of the zero‐angle scattering data, the theory yields a parameterfree prediction of the apparent radius of gyration which fits the data very well. To show the influence of renormalization we also analyse the data by an unrenormalized version of RPA.