DEVIATION OF EARLY-STAGE OF SPINODAL DECOMPOSITION FROM THE CAHN-HILLIARD-COOK THEORY OBSERVED IN AN ISOTOPIC POLYMER BLEND

Authors
MULLER G SCHWAHN D ECKERLEBE H RIEGER J SPRINGER T
Citation
G. Muller et al., DEVIATION OF EARLY-STAGE OF SPINODAL DECOMPOSITION FROM THE CAHN-HILLIARD-COOK THEORY OBSERVED IN AN ISOTOPIC POLYMER BLEND, Physica. B, Condensed matter, 234, 1997, pp. 245-246
Citations number
4
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
234
Year of publication
1997
Pages
245 - 246
Database
ISI
SICI code
0921-4526(1997)234:<245:DOEOSD>2.0.ZU;2-#
Abstract
The early stage of spinodal decomposition was studied by small-angle n eutron scattering in the critical mixture of the isotopic blend deuter o-polystyrene/polystyrene (d-PS/PS) of equal molecular volume of 1.42 x 10(6) cm(3)/mol. The time evolution of this process is described by the dynamical structure factor. The observed time evolution of the flu ctuation modes is non-exponential. The analysis of the data has shown that the non-exponential behavior was attributed to a time-dependent i ncrease of the ''range'' of the Onsager coefficient.