Permeation mechanism for a thermo-sensitive composite membrane composed of porous glass and n-isoprof1yilacf1ylamide

Tomoya Tsuji, Mikio Konno, Shozaburo Sato

研究成果: Article査読

25 被引用数 (Scopus)

抄録

A previously proposed method for preparing a composite membrane of hydrogels and porous inorganic substances was used for the synthesis of a thermo-sensitive membrane with switching ability. The membrane was made of porous glass and N-isopropylacrylamide gel, which has a volume-phase transition of the thermo-shrinking type. Permeation experiments demonstrated that the composite membrane functioned as an ultrafiltration membrane, the cut-off molecular weight and solution permeation rate of which dramatically changed on volume-phase transition. To make clear the permeation mechanism of the membrane, additional experiments were carried out in which the diffusion rates of 3H-labeled water through the membrane were measured at various temperatures. From the experimental results the pore radii in the gel could be estimated. It is shown that the rejection characteristics of the membrane are predictable from the pore radii estimated.

本文言語English
ページ(範囲)447-452
ページ数6
ジャーナルJOURNAL of CHEMICAL ENGINEERING of JAPAN
23
4
DOI
出版ステータスPublished - 1990

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)

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