•  
  •  
 

Abstract

The Influence of Polymerization Condition to Optical Properties of Poly-o-toludine Films for PH Sensor Application. Properties of poly-o-toludine film strongly bonded to non polar substrate was studied for application as optical pH sensor. Characterization of film in various pH value is carried out by recording absorbance curve using uv-visible spectrophotometer. All poly-o-toluidine film was then found to be applicable as optical pH sensor in the pH range of 2.0- 6.0. Further computational processing by means of curve fitting into logaritmic trend will allow expansion of measurement to the pH range of 2.0-8.0. Sensitivity of pH response was highest in poly-o-toluidine film fabricate at HCl 1.0 M and at 12 hours of dipping time. This paper also studied hysteresis effect in pH response. It was concluded that poly-o-toluidine salt exposed to basic pH will not be easily regenerated. For this reason, poly-o-toluidine film will only be suitable for single usage of pH measurement.

References

[1] R. W. Cattrol, Chemical Sensors, Oxford Science Publications, New York, 1997. [2] Z. Jin, Y. Su,Y. Duan, Sensors and Actuators B 71 (2000)118. [3] U. W. Grummt, A. Pron, M. Zagorsksa, S. Lefrant, Analytica Chimica Acta 357 (1997) 253. [4] E. Pringsheim, E. Terpetschnig, O. S. Wolfbeis, Analytical Chimica Acta 357 (1997) 247. [5] R. Madathil, Synthetic Metals 150 (2005) 123. [6] T. Lindfors, A. Ivanska, Journal of Electroanalytical Chemistry 531 (2002) 43. [7] J. Stejskal, I. Sapurina, Pure App.Chem. 77 (2005) 815. [8] E. Asijati, D. Susanto, T. A. Tockary, Y. Sabarinah, J. Makara Seri Sains 10 (2006) 47. [9] J. Stejskal, R. G. Gilbert, Pure Appl. Chem. 74 (2002) 857. [10] J. Stejskal, I. Sapurina; J. Prokes, S. Zemek, Synthetic Metals 105 (1999) 195. [11] J. Anand, S. Palaniappan, D. N. Sathyanarayana, Polymer 39 (1998) 6819. [12] M. R. Majidi, L. A. P. Kane-Magiure, G. G. G. Wallace, Polymer 37 (1997) 359. [13] L. H. C. Mattoso, O. N. Oliveira Jr., R. M. Faria, S. K. Manohar, A. J. Epstein, A. G. MacDiarmid, Polymer International 35 (1994) 89. [14] M. Hasik, E. Wenda, A. Bernasik, K. Kowalski, J. W. Sobczak, E. Sobczak, E. Bielanska, Polymer 44 (2003) 7809. [15] J. Huang, Conducting Polymer Nanofibers: Synthesis, Properties and Applications, IUPAC Publication, www.iupac.org/news/prize/2005/ Huang.pdf, 2005

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.