Studies of Poly(Ethyl Methacrylate) Complexed with Ammonium Trifluoromethanesulfonate

Abstract:

Free standing polymer electrolyte films comprising of ammonium trifluoromethane sulfonate in poly(ethyl methacrylate) were prepared and characterized. The structural and electrical properties of the polymer electrolytes were investigated by X-ray diffraction and a.c. impedance spectroscopy, respectively. The formation of polymer-salt complex has been confirmed by Fourier transform infrared spectroscopy study. Conductivity of the polymer electrolytes increased with salt content. The highest ionic conductivity in the order of 10-5 S cm-1 at room temperature was achieved for the system with 35 wt% of ammonium salt. The temperature dependence of conductivity obeyed the Vogel-Tammam-Fulcher relation. The activation energy has been calculated from the VTF formalism. The ionic transference number of the mobile ions estimated by Wagner’s polarization method was close to unity for the highest conducting sample implying that the conductivity was contributed by ions which was expected to be protons.

• Periodical: Advanced Materials Research (Volume 501)
• Pages: 19-23
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.501.19
• Online since: April 2012
• Authors: Norwati Khairyl Anuar, Norazlin Zainal, Mohamed Nor Sabirin, Ri Hanum Yahaya Subban
• Keywords: Ammonium Triflate, FT-IR, PEMA, Transference Number, Vogel-Fulcher-Tamman

References

[1] J. Reiter, J. Velicka, and M. Mika, Proton-conducting polymer electrolytes based on methacrylates, Electrochimica Acta 53 (2008) 7769-7774.

DOI: 10.1016/j.electacta.2008.05.066

[2] W. Wieczorek and J.R. Stevens, Proton transport in polyacrylamide based hydrogels doped with H3PO4 or H2SO4, Polymer 38 (1996) 2057-2065.

DOI: 10.1016/s0032-3861(96)00776-8

[3] S.A. Hashmi, A. Kumar, K.K. Maurya and S. Chandra, Proton-conducting polymer electrolyte I: the polyethylene oxide + NH4ClO4 system, J. Phys. D: Appl. Phys. 23 (1990) 1307-1314.

DOI: 10.1088/0022-3727/23/10/007

[4] N. Agmon, The Grotthuss mechanism, Chemical Physics Letters 244 (1995) 456-462.

DOI: 10.1016/0009-2614(95)00905-j

[5] S. Rudhziah, N. Muda, S. Ibrahim, A.A. Rahman, and N.S. Mohamed, Studies on proton conducting polymer electrolytes based on PVDF-HFP and PVDF-HFP/PEMA blend, Sains Malaysian 40 (2011) 707–712.

DOI: 10.4028/www.scientific.net/amr.287-290.100

[6] N. Muda, N. Kamarulzaman and N.S. Mohamed, PVDF/HFP-NH4CF3SO3-SiO2 nanocomposite polymer electrolytes for protonic electrochemical cells, Key Engineering Materials: Composite Science and Technology 471-472 (2011) 373-378.

DOI: 10.4028/www.scientific.net/kem.471-472.373

[7] S.K. Deraman, N.S. Mohamed and R.H.Y. Subban, Structural and electrical properties of PVC-NH4CF3SO3-EC proton conducting electrolyte system, Advanced Materials Research: Applications of Engineering Materials (2011) 287-290.

DOI: 10.4028/www.scientific.net/amr.287-290.2240

[8] S.F. Mohamad, R. Idris and N.S. Mohamed, Conductivity studies on ENR based proton conducting polymer electrolytes, Advanced Materials Research: Material and Manufacturing Technology 129-131 (2010) 61-65.

DOI: 10.4028/www.scientific.net/amr.129-131.561

[9] J.B. Wagner, and C. Wagner, Electrical conductivity measurements on cuprous halides, J. Chem. Phys. 26 (1957) 1597.

[10] M. Şenel, A. Bozkurt and A. Baykal, An investigation of the proton conductivities of hydrated poly(vinyl alcohol)/boric acid complex electrolytes, Ionics 13 (2007) 263-266.

DOI: 10.1007/s11581-007-0100-4

[11] G. Hirankumar, S. Selvasekaranpandian, N. Kuwata, J. Kawamura and T. Hattori, Thermal, electrical and optical studies on the poly(vinyl alcohol) based polymer electrolytes, J. Power Sources 144 (2005) 262-267.

DOI: 10.1016/j.jpowsour.2004.12.019

[12] R. Kumar, A. Subramani, N.T. Kalyana Sundaram, G. Vijaya Kumar and I. Baskaran, Effect of MgO nanoparticles on ionic conductivity and electrochemical properties of nanocomposite polymer electrolyte, Journal of Membrane Science 300 (2007) 104–110.

DOI: 10.1016/j.memsci.2007.05.014

[13] Y. Lin, L. Qi, D. Chen and F. Wan, Comblike polymer electrolyte with main chain glass transition near room temperature, Solid State Ionics 90 (1996) 307-313.

DOI: 10.1016/s0167-2738(96)00393-1

[14] T. Miyamoto and K. Shibayama, Free-volume model for ionic conductivity in polymers, J. Appl. Phys. 44 (1973) 5372.

[15] R. Baskaran, S. Selvasekarapandian, G. Hirankumar and M.S. Bhuvaneswar, Vibrational, ac impedance and dielectric spectroscopic studies of poly(vinylacetate)-N,N-dimethylformamide-LiClO4 polymer gel electrolytes, Journal of Power Sources 134 (2004) 235-240.

DOI: 10.1016/j.jpowsour.2004.02.025

[16] C.V. Subba Reddy, A.K. Sharma and V.V.R. Narasimha Rao, Conductivity and discharge characteristics of polyblend (PVP+PVA+KIO3) electrolyte, J. Power Sources 114 (2003) 338.

DOI: 10.1016/s0378-7753(02)00582-7

[17] R.G. Linford. In Chowdari, B.V.R. & Radhakrisna, Experimental techniques for studying polymer electrolytes (ed.) Solid State Devices, S. Singapore: World Scientific: (1998) pp.551-571.