2018 (1) 6
Synthesis of meta-linked fluorinated oligo(arylene ether) with hydroxyl end groups
Ihor Tkachenko, Yaroslav Kobzar, Oleg Shekera, Valery Shevchenko
Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine
48, Kharkivske shose, Kyiv, 02160, Ukraine
Polym. J., 2018, 40, no. 1: 41-45
Section: Synthesis polymers.
Language: English.
Abstract:
Reactive aromatic oligoethers with perfluoroaromatic units attract much interest as efficient building blocks for the construction low-loss optical waveguide materials and highly ion conductive membranes. Significant progress has been made on the synthesis of fluorine-terminated oligo(arylene ether)s (FAOs). Due to the side reactions as branching and crosslinking, hydroxyl-terminated FAOs are significantly less developed therefore efficient strategies of synthesis mentioned oligomers are paramount. In this work, the strategy to the synthesis of the hydroxyl-terminated FAO containing meta-oxyphenylene fragments was proposed. This oligomer is the first example of meta-linked FAO with reactive OH end-groups and was prepared by condensation polymerization of decafluorobiphenyl and resorcinol, where an excess of resorcinol was used. The structure of the synthesized oligomer was determined by Fourier transform infrared, 1H NMR and 19F NMR spectroscopy techniques. The molecular weight and thermal properties of the synthesized fluorinated oligo(arylene ether) were studied.
Keywords: reactive oligomers, fluorinated aromatic oligomers, synthesis, properties, meta-fragments.
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