2020 (1) 3

https://doi.org/10.15407/polymerj.42.01.019

Structure and properties of polyimide organo-inorganic nanocomposites based on tetraethoxysilane and methyl triethoxysilane

T.A. SHANTALII, Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine, E-mail:  shantaliitatiana@gmail.com

ORCID: 0000-0001-8540-217X

S.D. NESIN, Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,

ORCID: 0000-0003-2162-3533

I.L. KARPOVA Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,

M.M. MINENKO Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,

ORCID: 0000-0001-6045-0896

M.V. RUKHAYLO Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,

ORCID: 0000-0003-4656-8585

G.M. NESTERENKO Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2020, 42, no. 1: 19-26.

Section: Structure and properties.

Language: Ukrainian.

Abstract:

Heat-resistant polymer nanocomposites based on polyimide matrix and mixture of ethoxysilanes have been synthesized and investigated. Using the sol-gel method, samples were obtained based on pyromellitic acid dianhydride and 4,4’-diaminodiphenyl ether and mixtures of tetraethoxysilane and methyltriethoxysilane in the ratio (1: 1, 1: 2) in the amount (5, 20, 50% by weight of the original PACK). The influence of the ratio and content of ethoxysilanes on the structure and properties of nanocomposites was studied by the methods of X-ray structural analysis, dielectric spectroscopy and thermogravimetric analysis. The established structural dependences for these composites allow us to conclude that there is no significant effect of the ratio and amount of ethoxysilane introduced into the system to form the inorganic component on the structure. . The obtained materials are characterized by high thermal stability, low dielectric constant. The greatest decrease in dielectric constant compared to the original polyimide is observed for samples with different ethoxysilane ratio at 20% content. The resulting nanocomposites are characterized by high thermal stability and can be used in high temperature conditions.

Keywords: polyimide, nanocomposite, ethoxysilane, structure, dielectric constant, heat resistance.

REFERENCES

1. Byuller K.-U.Teplo- i termostoykie polimeryi.M:Himiya, 1984: 1056.
2. Chen. Y., Iroh J.O. Chem. Mater, 1999. 11: 1218–1222.
3. Musto P., Ragosta G., Scarinizi G. Mascia L. Polymer, 2004. 45, no. 5: 1697–1706. https://doi.org/10.1016/j.polymer.2003.12.044
4. Privalko V.P., Shantalii T.A., Privalkо E.G. Chapter 4 in : Science and Technology of Polymer-Composites: from Nano- to Micro-scale / Ed. by K Friedrich, S. Fakirov and Z. Zhang.Kluwer,2005: 63–76.
5. Privalko V.P., Shantalii T.A., Privalkо E.G. Nanosystemy, nanomaterialy ta nanotekhnolohii, 2004. 2, no. 1: 303–314.
6. Shantaliy T.A., Drahan E.S., Fomenko A.A., Klepko V.V. Polimer.zhurn., 2009, 31, no. 4: 353–357. https://doi.org/10.1007/s10357-009-167-9
7. Shantalii T.A., Homza Yu.P., Nesin C.D., Drahan K.S., Klepko V.V. Polimer. zhurn., 2012. 34, no 1: 86–90.
8. Shantalii T.A., Nesin S.D., Karpova I.L., Drahan K.S., Rukhailo M.V., Klepko V.V. XIV Ukrainska konferentsiia z vysokomolekuliarnykh spoluk, Kyiv, 15-18 zhovtnia 2018: 315–317.
9. Kozak N.V., Shantalii T.A., Drahan K.S., Vorontsova L.O., Klepko V.V. Polimer. zhurn., 2015, 37, no. 3: 229–234. https://doi.org/10.15407/polymerj.37.03.229
10. Lypatov Yu.S., Shylov V.V., Homza Yu.P., Kruhliak N.E. / Kyev: Nauk. dumka, 1982:396.
11. Toroptseva A.M., Belogorodskaya K.V., Bondarenko V.M. Laboratornyiy praktikum po himii i tehnologii vyisokomolekulyarnyih soedineniyyu. M.: Himiya,1972: 415.