Single-walled carbon nanotube modification on photograft-polymerized nation films via covalent and ionic bonding

Yoshifumi Yamaguchi, Naotoshi Nakashima

Research output: Contribution to journalArticle

Abstract

Acrylic acid (AAc) and diallyldimethylammonium chloride (DADMAc) were photograft-polymerized onto the surfaces of perfluorosulfonic acid (Nafion) membranes using 2,2'-azobis[N-(2- carboxyethyl)-2-methylpropionamide (ACMP) or Mohr's salt as a polymerization initiator. The degree of photografting changed from 1 wt% to 13.7 wt% depending on the experimental conditions (monomer, initiator and UV-light irradiation time). Shortened single-walled carbon nanotubes (s-SWNT5) prepared by a mixed acid treatment were immobilized in the grafted Nafion films by two different methods (methods A and B). Method A is a covalent-modification of the s-SWNTs with an acrylic acid (AAc)-photografted Nafion membrane in the presence of a diamine and a condensation reagent. Method B uses ion-complexation between the s-SWNTs with an anionic charge and a DADMAc-photografted Nafion film with a cationic charge. Based on the characterization of the hybrid materials by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), it was found the s-SWNTs were immobilized into the photografted-Nafion films by both methods.

Original languageEnglish
Pages (from-to)275-281
Number of pages7
JournalJournal of nanoscience and nanotechnology
Volume9
Issue number1
DOIs
Publication statusPublished - Jan 1 2009

Fingerprint

Carbon Nanotubes
Single-walled carbon nanotubes (SWCN)
carbon nanotubes
acrylic acid
initiators
Acids
Acrylics
membranes
acids
diamines
Membranes
reagents
Hybrid materials
polymerization
Raman spectroscopy
condensation
monomers
Complexation
chlorides
photoelectron spectroscopy

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Single-walled carbon nanotube modification on photograft-polymerized nation films via covalent and ionic bonding. / Yamaguchi, Yoshifumi; Nakashima, Naotoshi.

In: Journal of nanoscience and nanotechnology, Vol. 9, No. 1, 01.01.2009, p. 275-281.

Research output: Contribution to journalArticle

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