Electrical Properties of PAN/PMMA Blends Doped with Lithium Salts
Article Sidebar
Main Article Content
Abstract
Polymer blended electrolytes of various concentrations of undoped PAN/PMMA (80/20, 75/25, 70/30, 65/35 and 60/40 wt%) and doped with lithium salts (LiCl, Li2SO4H2O, LiNO3, Li2CO3) at 20% wt have been prepared by the solution casting method using dimethylformamide as a solvent. The electrical conductivity has been carried out using an LCR meter. The results showed that the highest ionic conductivity was 2.80x10-7 (Ω.cm)-1 and 1.05x10-1 (Ω.cm)-1 at 100 kHz frequency at room temperature for undoped (60% PAN + 40% PMMA) and (80% PAN + 20% PMMA) doped with 20%wt Li2CO3 composite blends, respectively. It was found from the measurements of the A.C conductivity of undoped (PAN+PMMA) and doped with different lithium salts in the frequency range (1kHz-100kHz) that A.C conductivity follows empirical laws σa.c(ω)=Aωs, where (s) is (are) located between (0.501-2.054). The frequency-dependent dielectric constant at room temperature for various composites exhibited that because of interfacial space charge polarization, the dielectric constant has a large value. The fluctuation of dielectric loss with the addition of various kinds of lithium salts and frequency-dependent dielectric loss were shown and discussed.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
© 2023 The Author(s). Published by College of Science, University of Baghdad. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License.
References
Gohel K., Kanchan D., and Maheshwaran C., Electrical and dielectric properties of PVdF-HFP–PMMA–(PC+ DEC)-LiClO4 based gel polymer electrolyte. AIP Conference Proceedings, 2018. 1942(1): pp.140081(1-4). .
Maragani N., VijayaKumar K., and KrishnaJyothi N., AC conductivity and thermal studies of PAN-NaF doped gel polymer electrolytes for solid state battery applications. Rasayan Journal of Chemistry, 2017. 10(2): pp. 665-672.
Latif F., Aziz M., Katun N., and Yahya M.Z., The Role and impact of rubber in poly (methyl methacrylate)/lithium triflate electrolyte. Journal of Power Sources, 2006. 159(2): pp. 1401-1404.
Chong W.G., Characteristics of polyacrylonitrile pan-based polymer electrolytes for battery applications, Thesis, University of Malaya, 2013.
Krishna Jyothi N., Vijaya Kumar K., Sunita Sundari G., and Narayana Murthy P., Ionic conductivity and battery characteristic studies of a new PAN-based Na+ ion conducting gel polymer electrolyte system. Indian Journal of Physics, 2016. 90(3): pp. 289-296.
Flora X.H., Ulaganathan M., and Rajendran S., Influence of lithium salt concentration on PAN-PMMA blend polymer electrolytes. International Journal of Electrochmeical Science, 2012. 7(8): pp. 7451-7462.
Kita F., Sakata H., Sinomoto S., Kawakami A., Kamizori H., Sonoda T., Nagashima H., Nie J., Pavlenko N.V., and Yagupolskii Y.L., Characteristics of the electrolyte with fluoro organic lithium salts. Journal of Power Sources, 2000. 90(1): pp. 27-32.
Arya A. and Sharma A.L., Effect of salt concentration on dielectric properties of Li-ion conducting blend polymer electrolytes. Journal of Materials Science: Materials in Electronics, 2018. 29(20): pp. 17903-17920.
Hasan B.A., Effect of thickness on the structure morphology and AC conductivity of Bi2S3 thin films. Iraqi Journal of Physics, 2017. 15(33): pp. 87-95.
Bouaamlat H., Hadi N., Belghiti N., Sadki H., Naciri Bennani M., Abdi F., Lamcharfi T., Bouachrine M., and Abarkan M., Dielectric properties AC conductivity and electric modulus analysis of bulk ethylcarbazole-terphenyl. Advances in Materials Science Engineering, 2020. 2020: pp. 1-8.
Hasan A.A., Dielectric study of PVC-LiF composites films. Iraqi Journal of Science, 2021. 62(3): pp. 861-870.
Abbas Y. and Abbas A., Dielectric and gas sensing properties of in situ electrochemically polymerized PPy-MgO-WO3 nanocomposite films. Iraqi Journal of Science, 2021. 62(9): pp. 2915-2933.
Tsonos C., Comments on frequency dependent AC cnductivity in polymeric materials at low frequency regime. Current Applied Physics, 2019. 19(4): pp. 491-497.
Papathanassiou A., Sakellis I., and Grammatikakis J., Universal frequency-dependent AC conductivity of conducting polymer networks. Applied Physics Letters, 2007. 91(12): pp. 122911(1-4)..
Sahi H., Preparation and Study the effective of addition (In and La) on Bi2-xInxSr2Ca2Cu3-yLayO10+δ) SuperconductorCcompound, Ph.D. Thesis, University of Baghdad college of Education for Pure Science (Ibn Al-Haitham), 2017.
Rahaman M.N., Ceramic Processing and Sintering. 2nd Ed 2017: CRC Press.
Waleed M., Preparation of Y-Ba-Cu-O Superconducting compounds and study of their structural and electrical properties, Ph.D. Thesis, University of Baghdad College of Education for Pure Science (Ibn Al-Haitham), 2019.
Li C., Chen G., Qiu X., Lou Q., and Gao X., A Direct proof for Maxwell–Wagner effect of heterogeneous interface. AIP Advances, 2021. 11(6): pp. 065227.
Jasim K.A. and Sahy H.H., The partial substitution by Lanthanum (La) and its effect on dielectric properties for (BSCCO) superconductor compound (Bi2Sr2Ca2Cu3-xLaxO10+δ). Journal of Kerbala University, 2017. 15(2): pp. 318-372.
Tinkham M. and Lobb C., Physical properties of the new superconductors. Solid State Physics, 1989. 42 pp. 91-134.
Younis A., Hussain A., Asghar M., Manzoor A., and Javed S., AC-field frequency response of Cu0. 5Tl0. 5Ba2 (Ca2− q Mg q) Cu3O10− δ Bulk Superconductor. Journal of Superconductivity Novel Magnetism, 2011. 24(4): pp. 1327-1332.