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Titolo:
Formation of porous flat membrane by phase separation with supercritical CO2
Autore:
Matsuyama, H; Yano, H; Maki, T; Teramoto, M; Mishima, K; Matsuyama, K;
Indirizzi:
Kyoto Inst Technol, Dept Chem & Mat Technol, Sakyo Ku, Kyoto 6068585, Japan Kyoto Inst Technol Kyoto Japan 6068585 l, Sakyo Ku, Kyoto 6068585, Japan Fukuoka Univ, Dept Chem Engn, Jyonan Ku, Fukuoka 8140180, Japan Fukuoka Univ Fukuoka Japan 8140180 gn, Jyonan Ku, Fukuoka 8140180, Japan
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 2, volume: 194, anno: 2001,
pagine: 157 - 163
SICI:
0376-7388(200112)194:2<157:FOPFMB>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPRESSED-FLUID ANTISOLVENT; RAPID EXPANSION; POLYMERIC MICROSPHERES; POLY(L-LACTIC ACID); CARBON-DIOXIDE; PRECIPITATION; NUCLEATION; FIBERS; PARTICLES;
Keywords:
supercritical CO2; phase separation; microporous membranes; polystyrene;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Matsuyama, K Kyoto Inst Technol, Dept Chem & Mat Technol, Sakyo Ku, Kyoto 6068585, Japan Kyoto Inst Technol Kyoto Japan 6068585 Kyoto 6068585, Japan
Citazione:
H. Matsuyama et al., "Formation of porous flat membrane by phase separation with supercritical CO2", J MEMBR SCI, 194(2), 2001, pp. 157-163

Abstract

Microporous polystyrene membranes were prepared by the phase separation process using the supercritical CO2 as a nonsolvent for the polymer solution. The thin polymer solution in a laboratory dish was located inside a cell and the supercritical CO2 was introduced to induce the phase separation. Thedry flat microporous membranes were obtained without collapse of the structure after the CO2 pressure was diminished. Effects of the experimental conditions such as the CO2 pressure, the polymer concentration and the temperature on the average pore size and membrane porosity were investigated. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 07/04/20 alle ore 03:21:55