Effect of Poly(amine)s on the Redox Properties of Carboxymethylcellulose and Ferrocene-modified Poly(amine) Layer-by-Layer Films

Yu Aikawa, Takumi Watanabe, Daichi Minaki, Shigehiro Takahashi, Baozhen Wang, Jun ichi Anzai

Research output: Contribution to journalArticlepeer-review

Abstract

Multilayer films consisting of carboxymethylcellulose (CMC) and ferrocene-modified poly(ethyleneimine) (Fc-PEI) or poly(allylamine hydrochloride) (Fc-PAH) were successfully prepared on a gold electrode to examine their redox properties. The redox current of (Fc-PEI/CMC)n film-coated electrodes increased with the number of layers, while the (Fc-PAH/CMC)n film-coated electrodes exhibited increased response only for the first eight bilayers. The (Fc-PEI/CMC)n and (Fc-PAH/CMC)n films deposited on the surface of Fc-free multilayer film-coated electrodes also showed a redox response. The (PEI/CMC)5 film-coated electrode showed redox responses in Fc-PEI and Fc-PAH solutions, confirming the uptake of the Fc-polymers in the inner film. In contrast, the uptake of the Fc-polymers in the (PAH/CMC)5 film was severely suppressed, suggesting that different permeability of (PEI/CMC)5 and (PAH/CMC)5 films.

Original languageEnglish
Pages (from-to)327-333
Number of pages7
JournalElectroanalysis
Volume28
Issue number2
DOIs
Publication statusPublished - 2016 Feb 1

Keywords

  • Cyclic voltammetry
  • Ferrocene-modified electrode
  • Layer-by-layer film
  • Thin film

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

Fingerprint Dive into the research topics of 'Effect of Poly(amine)s on the Redox Properties of Carboxymethylcellulose and Ferrocene-modified Poly(amine) Layer-by-Layer Films'. Together they form a unique fingerprint.

Cite this