PDA-Polymer Composite Thin Films: Fabrication and Application

Kesava Rao Vanjarapu kesava2123@gmail.com Raz Jelinek
Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel

Polydiacetylenes (PDAs) have attracted considerable interest due to their applications in nonlinear optics, microlithography, optical memory recording, sensing, etc.1 They exhibit unique chemical, optical and electronic properties. PDAs are conjugated organic polymers with alternating double and triple bond groups in the main polymer chain. Synthesis of various DA derivatives has been developed in our laboratory and used as colorimetric sensors.2,3 PDA compromising with polymers can have high gas sensitivity due to the porous nature of the polymer. The present study addresses the fabrication of various PDA-polymer composite thin films on interdigitated electrodes and used as capacitance based gas sensors.4 DAs with polar (acid, melamine, etc.) and nonpolar head groups (esters, etc.) are used and explored their application in sensing for both polar (NH3, NO2, EtOH, etc.) and nonpolar (toluene, CHCl3, etc.) vapors.

References:

  1. X. Sun, T. Chen, S. Huang, L. Li and H. Peng, Chem. Soc. Rev. 2010, 39, 4244-4257.
  2. R. Jelinek, M. Ritenberg, RSC Adv. 2013, 3(44), 21192-21201.
  3. A. Trachtenberg, O. Malka, K. P. Kootery, S. Beglaryan, D. Malferrari, P. Galletti, S. Prati, R. Mazzeo, E. Tagliavini, R. Jelinek, New J. Chem. 2016, 40, 9054-9059.
  4. N. Teradal, A. Morag, S. Marx, R. Jelinek, Journal of Materials Chemistry C, 2017, 5, 1128-1135.








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