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81367

Supelco

Polyurethane

Selectophore

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MDL number:
UNSPSC Code:
26111700
NACRES:
NB.61

grade

for ion-selective electrodes

Quality Level

product line

Selectophore

form

beads

General description

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

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 Merck KGaA, Darmstadt, Germany

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
S Y Yun et al.
Analytical chemistry, 69(5), 868-873 (1997-03-01)
Potentiometric responses of polyurethane (PU)-based membranes containing valinomycin and varying amounts of plasticizer (DOA) and/or lipophilic additive (KTpClPB) were examined as a function of soft segment [poly(tetramethylene ether glycol)] contents in aromatic diisocyanate-based PU matrices. Upon increasing the weight percentages
Polyurethane elastomers.
Petrovic, Zoran S., and James Ferguson.
Progress in Polymer Science, 16, 695-836 (1991)

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