ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Chemically modified (poly)vinyl chloride with built-in neutral carrier function as a new material for ion selective electrodes

Yulya Matveichuk, Evgenii Rakhman’ko, and Yauhen Akayeu

Belarusian State University, Minsk, Republic of Belarus

E-mail: Yu_Matveychuk@mail.ru

Abstract: The procedure for introducing 4-(trifluoroacetyl)benzoate groups into (poly)vinyl chloride has been developed. The new material thus prepared, 4-(trifluoroacetyl)benzoate modified (poly)vinyl chloride (TFAB-PVC), contains a built-in neutral anion carrier function. It has been shown that using TFAB-PVC instead of a known anion carrier additive, 4-(trifluoroacetyl)benzoic acid heptyl ester (TFABAHE), in sulfate, hydrogen phosphate and sulfide anion selective electrodes considerably increases the electrode’s lifetime even in alkaline media, probably by preventing crystallization of TFABAHE hydrate form on the membrane surface and slowing down the hydrolysis of ester groups and dissolution of the anion carrier.

Keywords: Neutral anion carrier ; 4-(trifluoroacetyl)benzoate ; Chemically modified (poly)vinyl chloride ; Ion selective electrodes 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-017-0356-8

Chemical Papers 72 (5) 1315–1323 (2018)