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Supermolecular structures in polymer solutions interpretation of static light scattering data
Author(s) -
Dautzenberg Herbert,
Rother Gudrun
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.19920610108
Subject(s) - characterization (materials science) , scattering , dispersity , interpretation (philosophy) , light scattering , spheres , plot (graphics) , polymer , range (aeronautics) , particle (ecology) , materials science , statistical physics , physics , optics , mathematics , polymer chemistry , statistics , computer science , composite material , geology , oceanography , astronomy , programming language
The characterization of supermolecular structures in polymer solutions by static light scattering requires an improved analysis of the scattering curves. A comparison of the experimental curves with model calculations for various basic structure types in a scaled plot offers the possibility to extend the range of a reliable determination of the structural parameters to particle sizes up to 500 nm. The influence of the polydispersity and problems of an unambiguous interpretation are discussed. Especially, a closed analytical expression for the scattering function of polydisperse systems of spheres with a Schulz‐Zimm distribution of radii was derived.