HCl gas sensing properties of TPPH2 dispersed in various copolymers

Authors
Nakagawa, K Kumon, K Tsutsumi, C Tabuchi, K Kitagawa, T Sadaoka, Y
Citation
K. Nakagawa et al., HCl gas sensing properties of TPPH2 dispersed in various copolymers, SENS ACTU-B, 65(1-3), 2000, pp. 138-140
Citations number
3
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
65
Issue
1-3
Year of publication
2000
Pages
138 - 140
Database
ISI
SICI code
0925-4005(20000630)65:1-3<138:HGSPOT>2.0.ZU;2-U
Abstract
Composite films of tetraphenylporphyrin embedded in various of polymer matr ix were prepared and their optical responses to hydrogen chloride (HCl) gas were examined. The absorbance of the Soret- and Q-bands for free-base tetr atphenylporphyrin is reversibly sensitive to parts per million (ppm) levels of HCl. The lower T-g of polymer matrix than the sensing temperature is ef fective to enhance the sensitivity of the Soret- and Q-band region. (C) 200 0 Elsevier Science S.A. All rights reserved.