Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Attenuation of concentration fluctuations after a quench to a temperature in the single-phase region
Autore:
Okada, M; Tao, J; Nose, T;
Indirizzi:
Tokyo Inst Technol, Dept Polymer Chem, Meguro Ku, Tokyo 1528552, Japan Tokyo Inst Technol Tokyo Japan 1528552 , Meguro Ku, Tokyo 1528552, Japan
Titolo Testata:
POLYMER
fascicolo: 2, volume: 43, anno: 2002,
pagine: 329 - 335
SICI:
0032-3861(200201)43:2<329:AOCFAA>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERIODIC SPINODAL DECOMPOSITION; POLYMER MIXTURES; POLY(ETHYLENE-TEREPHTHALATE) BLENDS; BINARY-MIXTURES; SEPARATION; DISSOLUTION; DYNAMICS; BEHAVIOR;
Keywords:
attenuation of fluctuation; phase dissolution; phase separation dynamics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Okada, M 6-3 Unoki 1 Chome,Ota Ku, Tokyo 1460091, Japan 6-3 Unoki 1 Chome,Ota Ku Tokyo Japan 1460091 kyo 1460091, Japan
Citazione:
M. Okada et al., "Attenuation of concentration fluctuations after a quench to a temperature in the single-phase region", POLYMER, 43(2), 2002, pp. 329-335

Abstract

Attenuation of concentration fluctuations in a polystyrene/poly(2-chlorostyrene) blend after a quench from a temperature in the spinodal region to one in the single-phase region was studied by using the time-resolved light scattering technique and a scanning electron microscope. The characteristic wave number q(m), where the maximum of the scattered light intensity was located, move towards smaller values during the attenuation process. The corresponding growth of the wave length of the dominant concentration fluctuation was clearly observed by the electron microscope. The scattered light intensities at small wave numbers were found to increase before they attenuated. In the later period the power-law behavior q(m) similar to t(-0.3) was observed. The exponent was smaller than the value (0.5) obtained on the basis of the non-linear theory by Akcasu and collaborators. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 18:08:31