Premium
Diffusion of spherical micronetworks in polymer diluent systems and melts studied by dynamic light scattering techniques
Author(s) -
Bartsch Eckhard,
Frenz Volker,
Renth Falk,
Sillescu Hans
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940790111
Subject(s) - diluent , colloid , diffusion , dynamic light scattering , polystyrene , microemulsion , materials science , rayleigh scattering , volume fraction , polymer , spheres , hard spheres , glass transition , light scattering , scattering , analytical chemistry (journal) , thermodynamics , nanoparticle , chemistry , optics , nanotechnology , composite material , chromatography , nuclear chemistry , physics , pulmonary surfactant , astronomy
Spherical polystyrene (PS) micronetworks can be prepared in microemulsion with bulk radii of 5–60 nm and different cross‐linking densities. The diffusion of these PS spheres has been studied in polymer diluent systems ranging from dilute solutions to plasticized melts by using forced Rayleigh scattering and photon correlation spectroscopy. On increasing the PS concentration, a colloid glass transition is observed at a volume fraction Φ C ≈ 0.64 of the swollen spheres. At higher concentration inside the “colloid glass” state the sphere diffusion is slowed down and becomes very complex but can be observed up to the limit of a melt of collapsed spheres.