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MDL number:

Quality Level


for ion-selective electrodes

product line


General description

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Polyurethanes are a broad class of polymers which have urethane group (-NHCO-O-). Urethane group is formed by isocyanate reacting with hydroxyl groups.


Polymeric membrane material for chemosensors and biosensors
Polyurethane was used as an outer coating membrane to increase stability and the linear range of the sensor during development of glutamate microbiosensor. It may also be suitable in investigating the thermal degradation of α,γ-diphenyl alkyl allophanates and carbanilates for crosslinking sites using pyrolysis-high-resolution gas chromatography/FT-IR (Py-HRGC/FT-IR).

Other Notes

Membrane material with favourable properties for sensors, e.g. long-term electrochemical stability, improved biocompatibility, etc.

Legal Information

Selectophore is a trademark of Sigma-Aldrich Chemie GmbH

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

E. Lindner et al.
Electroanalysis, 7, 864-864 (1995)
Malika Ammam et al.
Biosensors & bioelectronics, 25(7), 1597-1602 (2009-12-26)
A highly sensitive and selective glutamate microbiosensor based on polypyrrole (PPy), multiwalled carbon nanotubes (MWCNT) and glutamate oxidase (GluOx) deposited on the transducer platinum electrode (Pt) is described. The sensor consists of a permselective membrane of polypyrrole for the rejection
Thermal degradation mechanism of a, ?-diphenyl alkyl allophanate as a model polyurethane by pyrolysis-high-resolution gas chromatography/FT-IR.
Yoshitake, Norimichi, and Mutsuhisa Furukawa.
Journal of Analytical and Applied Pyrolysis, 33, 269-281 (1995)
M.E. Meyerhoff et al.
Polym. Mater. Sci. Eng., 64, 293-293 (1991)
Polyurethane elastomers.
Petrovic, Zoran S., and James Ferguson.
Progress in Polymer Science, 16, 695-836 (1991)

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