Porous Transition of Polyelectrolyte Film through Reaction-Induced Phase Separation Caused by Interaction with Specific Metal Ions

Yosuke Tsuge, Takeo Moriya, Seimei Shiratori

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We describe a novel method for the simple and eco-friendly fabrication of porous polyelectrolyte films. A polyelectrolyte with many amine groups undergoes structural transformation from a dense to a porous structure upon immersion in a specific metal ion solution. The porous transition was the result of a reaction-induced phase separation, which was caused by the formation of new bonds between the polyelectrolyte and metal ions. This method enables control of the pore size of the porous structure in the nanoscale (54 nm) to microscale (1.63 μm) range through variation of the concentration or type of metal ions in the solution. To the best of our knowledge, this is the first report illustrating wide-range control of the pore size of a porous polyelectrolyte structure achieved by metal ions. These porous polyelectrolyte films with adjustable pore size and metastable metal ions can be employed in applications such as adsorption and catalysis.

Original languageEnglish
Pages (from-to)7219-7227
Number of pages9
JournalLangmuir
Volume32
Issue number28
DOIs
Publication statusPublished - 2016 Jul 19

Fingerprint

Polyelectrolytes
Phase separation
Metal ions
metal ions
Pore size
porosity
interactions
trajectory control
microbalances
submerging
Catalysis
catalysis
Amines
amines
Adsorption
Fabrication
fabrication
adsorption
ions

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Porous Transition of Polyelectrolyte Film through Reaction-Induced Phase Separation Caused by Interaction with Specific Metal Ions. / Tsuge, Yosuke; Moriya, Takeo; Shiratori, Seimei.

In: Langmuir, Vol. 32, No. 28, 19.07.2016, p. 7219-7227.

Research output: Contribution to journalArticle

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