Citation: Yang LI, Mu Jie YANG. A Novel Thin Film Resistive Humidity Sensor Based on Soluble Conjugated Polymer:(propionic acid)-co-(propargyl alcohol)[J]. Chinese Chemical Letters, ;2001, 12(8): 701-702. shu

A Novel Thin Film Resistive Humidity Sensor Based on Soluble Conjugated Polymer:(propionic acid)-co-(propargyl alcohol)

Yang LI ,
Mu Jie YANG

Department of Polymer Science and Engineering, Zhejiang Universiry, Hangzhou 310027

Received Date: 20 January 2001

Fund Project: This project was supported by the National Natural Science Foundation of China and Zhejaing provincial Natural Science Foundation, and by the Scientific and Technological Agreement between China and Italy. The authors thank Dr. G.Casalbore-Miceli and Dr. N. Camaioni for help in measurement of humidity characteristics.

A novel soluble conjugated copolymer (propionic acid)-co-(propargyl alcohol) (PA-co-OHP) has been synthesized for the first time using a new palladium acetylide catalyst Pd(PPh₃)₂ (C≡CC(CH₃)₂OH)₂ (PPB). Thin film resistive humidity sensor based on the copolymer doped with HClO₄ was prepared. The impedance of the sensor changed from 103~107 W in 95%~30%RH, and the response of that is very quick (< 6 sec.). Preliminary results show the copolymer is a promising humidity sensitive material.
- Humidity sensor,
- conjugated polymer,
- propiolinc acid,
- propargyl alcohol.
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