Fructose-Based Polyurethane Membranes: Synthesis, Characterization, and Their Use as Voltammetric pH Electrode

Author： Güngör Öznur   Paşahan Aziz   Cengiz Mahmut Alper   Köytepe Süleyman   Seçkin Turgay  

Publisher： Taylor & Francis Ltd

ISSN： 0091-4037

Source： International Journal of Polymeric Materials, Vol.64, Iss.11, 2015-10, pp. : 563-569

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Abstract

In this study, polyurethane films prepared from the 4,4′-diphenylmethane diisocyanate (MDI), ethylene glycol, and different ratio fructose were used to prepare a novel amperometric pH electrode. Fructose-based films were characterized by FT-IR, DSC, DTA, and TGA. Prepared polyurethanes exhibited suitable Tg(°C), good thermal stability and good adhesive properties. The incorporation of saccharides into the PU structure results in a higher crosslinking density and a higher content of hard segments. Furthermore, the behavior of films prepared from polyurethane solutions containing 1%, 3%, 5%, and 10% fructose toward pH changes were examined by normal pulse voltammograms technique and diferantial pulse voltammetry.

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