№2 (2017) 9

https://doi.org/10.15407/polymerj.39.02.129

Meta-substituted poly(arylene ether) with octafluorobiphenylene fragments

І.М. Тkachenko

Institute of Macromolecular Chemistry NAS of Ukraine

48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2017, 39, № 2: 129-134.

Section: Synthesis polymers.

Language: Ukrainian.

Abstract:

Two synthetic pathways have been developed to prepare meta-linked fluorinated poly(arylene ether) with the same chemical composition of a repeating unit. The interaction of decafluorobiphenyl with resorcinol represents a first route of synthesis such polymer. In a second route, the product from decafluorobiphenyl and two-fold molar excess of resorcinol was obtained, then, the specified polymer was prepared from decafluorobiphenyl and the obtained fluorinated monomer. The structures of the obtained polymers were confirmed by 1Н, 19F NMR and IR spectroscopic studies. The choice of initial phenolic type monomers predetermines the growth pattern of the polymer chain of the polyether which affects its molecular weight, mechanical, thermophysical and dielectric characteristics. The resorcinol-based polyether has a higher molecular weight, better mechanical and thermal properties, whereas the polymer obtained by the second route is characterized by lower polydispersity and dielectric constant (2,3 at 10 kHz).

Key words: fluorinated poly(arylene ether)s, synthesis, properties, meta-fragments, dielectric permittivity.

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№2 (2017) 9