Evaluation of poly(vinylidene chloride) as a matrix for polymer membrane ion-selective electrodes

Vanessa J. Wotring, Patrick K. Prince, Leonidas G. Bachas

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Poly(vinylidene chloride) (PVDC) was evaluated as a matrix for ion-selective electrodes. The glass-transition temperature of this polymer is below room temperature, hence, plasticizers are not required in order to make viable membranes. Quaternary ammonium salts [Aliquat 336 and tridodecylmethylammonium thiocyanate (TDMAT)] were used as the ionophores. It was possible to make functional unplasticized PVDC electrodes based on Aliquat 336. No deterioration in the slope of the calibration graph was observed over a period of 7 months. A mediator, octanol, was required in the preparation of electrodes based on TDMAT. Poly(vinylidene chloride) membrane electrodes based on this ionophore had a lifetime of about 2 months.

Original languageEnglish (US)
Pages (from-to)581-584
Number of pages4
JournalThe Analyst
Volume116
Issue number6
DOIs
StatePublished - Dec 1 1991
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

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