Home
Resources
Publications
Tuning the Dynamic Range and Sensitivity of Optical Oxygen-Sensors by Employing Differently Substituted Polystyrene-Derivatives

Tuning the Dynamic Range and Sensitivity of Optical Oxygen-Sensors by Employing Differently Substituted Polystyrene-Derivatives

Klaus Koren, Lukas Hutter, Barbara Enko, Andreas Pein, Sergey M Borisov, Ingo Klimant

Sens Actuators B Chem. 2013 Jan;176(100):344-350.

PMID: 23576846

Abstract:

Ten different polystyrene-derivatives were tested with respect to their potential use as matrix materials for optical oxygen sensors in combination with the platinum(II) meso-tetra(4-fluorophenyl)tetrabenzoporphyrin as indicator dye. Either halogen atoms or bulky residues were introduced as substituents on the phenyl ring. A fine-tuning of the sensor sensitivity was achieved, without compromising solubility of the indicator in the matrix by providing a chemical environment very similar to polystyrene (PS), a standard matrix in optical oxygen sensors. To put the results into perspective, the studied materials were compared to PS regarding sensitivity of the sensor, molecular weight and glass-transition temperature. The materials promise to be viable alternatives to PS with respect to the requirements posed in various sensor application fields. Some of the polymers (e.g. poly(2,6-dichlorostyrene)) promise to be of use in applications requiring measurements from 0 to 100% oxygen due to linearity across this range. Poly(4-tert-butylstyrene) and poly(2,6-fluorostyrene), on the other hand, yield sensors with increased sensitivity. Sensor stability was evaluated as a function of the matrix, a topic which has not received a lot of interest so far.

Chemicals Related in the Paper:

Catalog Number	Product Name	CAS Number	Price
AP26009552	Poly(4-tert-butylstyrene)	26009-55-2	Price
AP28469923	2,6-Dichlorostyrene	28469-92-3	Price
AP30350142	Poly(2,6-dichlorostyrene)	30350-14-2	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: