Polymer/liquid crystal composite membranes: A new membrane system for crown-mediated ion transport

Seiji Shinkai, Tisato Kajiyama

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Composite membranes composed of polymer (polycarbonate, PC)/liquid crystal [N-(4-ethoxybenzylidene)-4' ‘-butylaniline, EBBA]/crown ethers have been prepared. Crown-mediated K+ transport through the PC/EBBA/crown membranes was very fast above tkn(crystal-nematic liquid crystal phase transition temperature of EBBA) owing to the high fluidity of EBBA forming a continuous phase in the composite membranes. K+ transport was very slow below TKN where the therm38:150al molecular motion of EBBA is frozen. In particular, K+ transport is “completely” suppressed when the crown carriers form microheterogeneous, phase-separated aggregates in the membranes. This is the first example for “complete” thermocontrol of ion transport through the polymer composite membranes.

Original languageEnglish
Pages (from-to)575-580
Number of pages6
JournalPure and Applied Chemistry
Volume60
Issue number4
DOIs
Publication statusPublished - Jan 1 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Polymer/liquid crystal composite membranes: A new membrane system for crown-mediated ion transport'. Together they form a unique fingerprint.

Cite this