Characterization of Polymeric Chemiresistors for Gas Sensor

Budi Gunawan, Muhammad Rivai, Hendro Juwono


Polymer is a non conductive materialthat can be conductive with carbon black filler to form polymer-carbon composite. polymer-carbon composite’s resistance changes with gas. The conductivity of polymer-carbon composite is influenced by several factors,i.e. type of gas, volume of gas, temperature and humidity.. This research characterizes the polymer-carbon composite sensor from 6 types of polymers: PEG6000, PEG20M, PEG200, PEG1540, Silicon and Squelene. The sensors are treated with Aceton, Aceton Nitril, Benzene, Etanol, Methanol, Ethyl Aceton, Chloroform, n-Hexan and Toluene. This characterization are grouped into 4 cluster according to their selectivity, sensitivity, influence of temperature and humidity. sensors are put in an isolated chamber which is connected to data acquisition with the  variations of temperature, humidity, type and volume of gas. Correspondence analysis and regression are used to process the data. Test results found that each sensor showed different sensitivity and selectivity towards particular type of gas. Resistance of sensors increases with rising temperature and humidity environment with  order 2 and order 3 polynomial equation 

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Atkins PW. Physical Chemistry. 4th ed. New York: W.H. Freeman. 1990.

Chung TC, Kaufman JH, Heeger AJ, Wudl F. Charge Storage in Doped Poly (thiophene): Optical and Electrochemical Study. Phys. Rev. B. 1984. 30(2): p. 702

Department of Chemical Engineering Brigham Young University. Modeling and Data Analysis of Conductive Polymer Composite Sensors. 2006.

Dian G, Barbey G, Decroix B. Electrochemical synthesis of polythiophenes and polyselenophenes. Synthetic Metals. 1986. 13(4): p. 281-289

Prayitno A, Kubumwe O, Bosma H, Tazelaar E. Efficiency of polymer electrolyte membrane fuel cell stack. TELKOMNIKA. 2011; 9(2): 303-310.

Zee F, Judy J. MEMS Chemical Gas Sensor Using A Polymer-Based Array. The 10th International Conference on Solid-State sensors and Actuators. June 7-10, Sendai, Japan. 1999.

Grodzinsksi Review Electronically Conductive Polymers, Polym.Adv.Technol, 615-625, Weizman Institute of Science, Rohovot, Israel. 2002.

BaiH, Shi G. Gas Sensors Based on Conducting Polymers. 2006.

Janata J, Josowicz M. Conducting Polymers In Electronic Chemical Sensors. 2002.

Kohlman RS, Epstein AJ. Insulator-Metal Transition and Inhomogeneous Metallic State in Conducting Polymers. Skotheim, Terje A.; Elsenbaumer, Ronald L., and Reynolds, John R., Editors. Handbook of Conducting Polymers. 2nd ed. New York: Marcel Dekker. 1998: 85-122.

Kankare J, Kupila EL. In-situ conductance measurement during electro polymerization. Journal of Electro analytical Chemistry. 1992; 322(1-2): 167-181

Nalwa HS. Handbook of Organic Conductive Molecules an Polymers. 1997; (4): 1-3.

Perepichka FI. Light Emitting Poluthiophene, Weizman Institute of Science, Rohovot, Israel. 2006.

Persaud KC. Polymers for chemical sensing. Materials Today. 2005; 8(4): 38-44

Pratt C. Conducting Polymer, John Wiley & Sons, New Jersey.1996.


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