Temperature sensing using reversible thermochromic polymeric films

被引：43

作者：

Baron, MG ^{[1
]}

Elie, M ^{[1
]}

机构：

[1] Lincoln Univ, Dept Biol Sci, Lincoln LN6 7TS, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 90卷 / 1-3期

关键词：

thermochromic; nafion((R)); dyes; pH;

D O I：

10.1016/S0925-4005(03)00045-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Temperature sensing membranes using Nafion((R)) as the polymeric support matrix have been prepared incorporating common pH indicators and stains as visible indicators. These simple systems depend on the temperature sensitivity of the acid-base equilibria between the indicator and the acidic Nafion((R)). The films are able to sense temperature change through a change in film colour resulting from the equilibrium shift between different forms of the indicating dye. The dyes (phenolphthalein, methylene blue, safranin-O and crystal violet) studied covered a temperature range from 4 to 70 degreesC. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：271 / 275

页数：5

共 5 条

[1] Reversibly thermochromic systems based on pH-sensitive spirolactone-derived functional dyes [J].