Photoresponsive permeation characteristics of a ternary composite membrane of polymer/artificial lipid/azobenzene derivative

Atsushi Kumano, Osamu Niwa, Tisato Kajiyama, Motowo Takayanagi, Toyoki Kunitake, Koji Kano

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A ternary composite membrane composed of polymer/artificial lipid/azobenzene derivative was prepared by casting from a tetrahydrofuran solution of poly(vinyl chloride) (PVC), dioctadecyldimethylammonium bromide (DOAB) and p-ω-hydroxypropyloxy-p′-dodecyloxy azo-benzene (AZO). AZO dispersed almost molecularly within the multilayer liposome of artificial lipid (DOAB), and even in the ternary composite membrane, AZO exhibited trans-cis photoisomerization in a similar manner to that in solution. The water or ion permeations through the composite membrane apparently increased upon the irradiation of ultraviolet (UV) light when artificial lipids were in a liquid crystalline state. The water permeability coefficient, P depended on the trans-fraction of AZO. This suggests that the conformational change due to the trans-cis photoisomerization of AZO makes compact packing of artificial lipid molecules around AZO loosed, being followed by formation of permeation channel.

Original languageEnglish
Pages (from-to)461-470
Number of pages10
JournalPolymer Journal
Volume16
Issue number6
DOIs
Publication statusPublished - Jan 1 1984

Fingerprint

Azobenzene
Composite membranes
Permeation
Lipids
Polymers
Derivatives
Photoisomerization
Bromides
Vinyl Chloride
Water
Liposomes
Hydraulic conductivity
Benzene
Polyvinyl Chloride
Polyvinyl chlorides
Multilayers
Casting
Irradiation
Ions
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Photoresponsive permeation characteristics of a ternary composite membrane of polymer/artificial lipid/azobenzene derivative. / Kumano, Atsushi; Niwa, Osamu; Kajiyama, Tisato; Takayanagi, Motowo; Kunitake, Toyoki; Kano, Koji.

In: Polymer Journal, Vol. 16, No. 6, 01.01.1984, p. 461-470.

Research output: Contribution to journalArticle

Kumano, Atsushi ; Niwa, Osamu ; Kajiyama, Tisato ; Takayanagi, Motowo ; Kunitake, Toyoki ; Kano, Koji. / Photoresponsive permeation characteristics of a ternary composite membrane of polymer/artificial lipid/azobenzene derivative. In: Polymer Journal. 1984 ; Vol. 16, No. 6. pp. 461-470.
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