Novel ion-exchange membranes for electrodialysis prepared by radiation-induced graft polymerization

Satoshi Tsuneda, Kyoichi Saito, Hisashi Mitsuhara, Takanobu Sugo

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Novel ion-exchange membranes containing sulfonic acid (SO3H) and trimethyl ammonium [N(CH3)3] groups were prepared by a simple method of radiation-induced cografting of sodium styrenesulfonate (SSS) with acrylic acid (AAc) and vinyl benzyl trimethyl ammonium chloride (VBTAC) with 2-hydroxyethyl methacrylate (HEMA), onto a polyethylene film with a thickness of 50 μm. The high density graft chain was introduced throughout the polyethylene film. The maximum cation- and anion-exchange capacities of the resultant membranes were 2.5 and 1.3 mol/kg, respectively. These membranes exhibited an electrical resistance one order lower than commercially available ion-exchange membranes; for example, 12 h cografting provided cation- and anion-exchange membranes whose electrical resistances in a 0.5 M NaCl solution were 0.25 and 0.85 Ω cm2, respectively. From the evaluation of electrodialytic desalination in a batch mode, using a pair of the graft-type ion-exchange membranes, the time required to achieve 99.5% desalination of the initial 0.5 M NaCl solution was reduced to 85% comparing with that of the commercial ion-exchange membranes.

Original languageEnglish
Pages (from-to)3659-3663
Number of pages5
JournalJournal of the Electrochemical Society
Volume142
Issue number11
Publication statusPublished - 1995 Nov
Externally publishedYes

Fingerprint

electrodialysis
Ion exchange membranes
Electrodialysis
Grafts
polymerization
Polymerization
membranes
Radiation
Acoustic impedance
Polyethylene
radiation
Desalination
Membranes
Anions
Cations
Polyethylenes
Ion exchange
ions
Negative ions
Positive ions

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Novel ion-exchange membranes for electrodialysis prepared by radiation-induced graft polymerization. / Tsuneda, Satoshi; Saito, Kyoichi; Mitsuhara, Hisashi; Sugo, Takanobu.

In: Journal of the Electrochemical Society, Vol. 142, No. 11, 11.1995, p. 3659-3663.

Research output: Contribution to journalArticle

Tsuneda, Satoshi ; Saito, Kyoichi ; Mitsuhara, Hisashi ; Sugo, Takanobu. / Novel ion-exchange membranes for electrodialysis prepared by radiation-induced graft polymerization. In: Journal of the Electrochemical Society. 1995 ; Vol. 142, No. 11. pp. 3659-3663.
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