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- Title
Synthesis of a novel poly(p-phenylene-vinylene) derivative and its application in chemiresistive sensors for electronic noses with an unusual response to organic vapours.
- Authors
Gruber, Jonas; Yoshikawa, Eduardo K. C.; Bao, Ying; Geise, Herman J.
- Abstract
We report the synthesis of a novel poly(p-phenylene-vinylene) derivative bearing dodecanoylsulfanyl side-groups (I2COS-PPV). Good solubility in organic solvents was achieved. The average molecular weight was around 30000, the energy gap 2.8 eV and the thermal stability up to 130°C. Doping with iodine vapours rose conductivity to 2.10-6 S/cm. Gas sensors made from FeCI3-doped I2COS-PPV showed an unusual behaviour responding to only four of the eight different organic solvent vapours tested. Recoveries from the responses are not complete, but are reproducible and can be used to discriminate between the four solvents. Quantitative analyses are also possible since there is a good linear correlation between relative response and concentration.
- Subjects
PHENYLENEDIAMINES; ETHYLENE dichloride; ORGANIC solvents; NONAQUEOUS solvents; IODINE; QUANTITATIVE chemical analysis
- Publication
e-Polymers, 2004, p1
- ISSN
1618-7229
- Publication type
Article