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Titolo:
Convective oscillation in binary and ternary polymer solutions with the Soret effect
Autore:
Sakurai, S; Wang, YC; Kushiro, T; Nambu, T; Nomura, S;
Indirizzi:
Kyoto Inst Technol, Dept Polymer Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan Kyoto Inst Technol Kyoto Japan 6068585 n, Sakyo Ku, Kyoto 6068585, Japan
Titolo Testata:
CHEMICAL PHYSICS LETTERS
fascicolo: 3-4, volume: 348, anno: 2001,
pagine: 242 - 248
SICI:
0009-2614(20011109)348:3-4<242:COIBAT>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAYLEIGH-BENARD CONVECTION; TEMPERATURE-GRADIENT; PATTERN-FORMATION; PHASE-SEPARATION; TRAVELING WAVES; FLUID MIXTURES; DYNAMICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Sakurai, S Kyoto Inst Technol, Dept Polymer Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan Kyoto Inst Technol Kyoto Japan 6068585 , Kyoto 6068585, Japan
Citazione:
S. Sakurai et al., "Convective oscillation in binary and ternary polymer solutions with the Soret effect", CHEM P LETT, 348(3-4), 2001, pp. 242-248

Abstract

We report experimental observations of a novel kind of convective oscillation in binary and ternary polymer solutions confined in a very thin layer (0.1 mm). This convective oscillation was considered to be driven by the Soret effect, which has been recently predicted by theory for a fluid mixture with a very small value of the Lewis number, namely, having much smaller mass diffusivity as compared to thermal diffusivity. For binary polymer solutions of polystyrene (PS) in dioctyl phthalate (DOP) and for ternary solutions of PS/PB/DOP (polybutadiene (PB)), the magnitude of convective flow was oscillating with time until reaching a stationary state. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 14/07/20 alle ore 07:06:02