№2 (2017) 1

https://doi.org/10.15407/polymerj.39.02.75

E.A. Lysenkov1, O.V. Striutskyi2, S.I. Bokhvan2, V.V. Klepko2

1 Mykolayiv V.O. Sukhomlinskiy National University

24, Nikolska Str., Mykolayiv, 54030, Ukraine

2 Institute of Macromolecular Chemistry of NAS of Ukraine

48, Kharkivske highway, Kyiv, 02160, Ukraine

Polym. J., 2017, 39, № 2: 75-82.

Section: Structure and properties.

Language: Ukrainian.

Abstract:

This work is devoted to the study of influence of endgroups of olygoethylene glycol (OEG) on the percolation behavior of nanocomposites, filled by carbon nanotubes (CNT). The composіtes based on two types of OEG-400, containing hydroxylic endgroups (OEG–OH) and containing acetate endgroups (OEG–Ac) were used for the study of this influence. It is set that a general level of conductivity of the system based on OEG–OH is higher, than for the system based on OEG–Ac, that is explained the change of the conductivity level of OEG matrix as a result of its acilation. It is discovered that values of percolation threshold increase with substituting of hydroxylic endgroups by the acetatic, that can be explained different character of interaction between a polymeric matrix and CNT. The analysis of critical exponents rotined that values of the exponent t for both investigated systems were similar, but the values of critical exponent s differ substantially. Such conformities in the values of critical exponents specify on that interaction of endgroups of olygoether and CNT is instrumental in forming of more fluffy clusters, however it is not influences on the process of their association in a percolation cluster.

Keywords: nanocomposites, percolation behavior, carbon nanotubes, conductivity, interphase interaction.

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