Архів / Том LIII 2018

Volodymyr DUTKA, Elza BILOSOROCHKA, Olena AKSIMENTYEVA, Halyna HALECHKO, Yaroslav KOVALSKYI

Ivan Franko National University of Lviv, Kyryla & Mefodiya Str., 6, 79005 Lviv, Ukraine

DOI: https://doi.org/10.37827/ntsh.chem.2018.53.164

THERMOMECHANICAL PROPERTIES AND ELECTRICAL CONDUCTIVITY OF POLYMER-POLYMER COMPOSITES BASED ON POLYVINYL ALCOHOL AND POLYANILINE

The mechanic-chemical method used to produce polyvinyl alcohol (PVA) and polyaniline (PANI) composites. For synthesis, PVAs with a molecular weight of 40.0.103 and a residual amount of acetate groups of 3.2% were use. Polyaniline obtained by reaction of oxidation polycondensation of aniline with ammonium peroxydisulphate in sulfate acid medium. The thermomechanical properties of polyvinyl alcohol and composites of polyaniline from PVA been investigated. It shown that the increase in the content of PANI in the composite results in a decrease in the glass transition temperature. The conductive polymer of PANI acts on the macromolecule of PVA, which results in a decrease in the transition temperature of the glassy state - highly elastic. Electrical conductivity of composites based on PVA and PANI was study. The growth of the content of the conductive component in the composite leads to an increase in electrical conductivity. With increasing content of PANI from zero to 70% mass electric conductivity increases by four orders of magnitude. The dependence of the conductivity of composites on temperature is investigate. The energy of activation of charge transfer is find.

Key words: polyvinyl alcohol, polyaniline, thermomechanical properties, electrical conductivity, composites.

References:

1. Sarbani Adhikari, Banerji P. Polyaniline composite by in situ polymerization on a swollen PVA gel. Synthetic Metals – 2009. – Vol. 159. - P. 2519–2524. (https://doi.org/10.1016/j.sythmet.2009.08.050).
2. Arenas M.C., Sandez G., Martinez-Alvares O., Castano V.M. Electrical and morphological properties of polyaniline polyvinyl alcohol in situ nanocomposites. Composites: Part B: – 2014. – Vol. 56. - Р. 857–861. (https://doi.org/10.1016/j.compositesh.2013.09.010).
3. Mirmohseni A.,Wallace G. Preparation and characterization of processable electroactive polyaniline–polyvinyl alcohol composite. Polymer. – 2003. – P. 3523–3528. (https://doi.org/10.1016/S0032-3861(03)00242-8).
4. Stejskal J., Gilbert R.G. Polyaniline. Preparation of a conducting polymer. Pure Appl. Chem. – 2002. - Vol. 74, No 5. P. 857–867. (https://doi.org/10.1351/pac200274050857).
5. Nikolayev A.F., Ochrimenko G.I. Water-soluble polymers. L.: Chimija 1979 -144 p. (in Russian).
6. Elektroactive polymeric matherials / Mamuniya Ye., Iurzenko M., Lebedev E. et all. – Kyiv. – 2013 – 402 c. (in Ukrainian).
7. Foot P. J. S., Simonb R. Electrochemical polymerization and electrochromic properties of polyanilines. J. Phys. D: Appl.Phys. – 1988. – Vol. 22. – P. 1598–1603. (https://doi.org/10.1088/0022-3727/89/111598).
8. Aksimentyeva O.I., Grytsiv M.Ya., Konopelnik O.I. Temperature dependence of resistance and thermal stability of doped polyaniline. Functional Materials. – 2002. – Vol. 9, N 2. – P. 251–254.
9. Choi S.-J., Park S. Electrochemistry of conducting polymers. XXVI. Effect of Electrolytes and Growth Methods on Polyaniline Morphology. J. Electrochem. Soc. – 2002. – Vol. 149, N 2. – E26–E34. (https://doi.org/10.1149/1.1432675).

How to Cite

Dutka V., Bilosorochka E., Aksimentyeva O., Halechko H., Kovalskyi Y. THERMOMECHANICAL PROPERTIES AND ELECTRICAL CONDUCTIVITY OF POLYMER-POLYMER COMPOSITES BASED ON POLYVINYL ALCOHOL AND POLYANILINE Proc. Shevchenko Sci. Soc. Chem. Sci. 2018 Vol. LIII. P. 164-169.