Diffusion of macromolecules and water molecules in dilute aqueous solutions of polyethylene oxide

Authors
Sevryugin, VA Aslanyan, IY Skirda, VD
Citation
Va. Sevryugin et al., Diffusion of macromolecules and water molecules in dilute aqueous solutions of polyethylene oxide, RUSS J PH C, 74(12), 2000, pp. 1973-1978
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
74
Issue
12
Year of publication
2000
Pages
1973 - 1978
Database
ISI
SICI code
0036-0244(200012)74:12<1973:DOMAWM>2.0.ZU;2-8
Abstract
The concentration dependences of the self-diffusion coefficients of water m olecules D-aq(c) and polyethylene oxide macromolecules D-p(c) in aqueous so lution are discussed. In the region of dilute solutions, the Daq(c) depende nces are determined by the interaction of water molecules with polyethylene oxide oxygen atoms, and the D-p(C) dependences, by the interaction of poly mer macromolecules with each other. These dependences are exponential funct ions of volume concentrations.