Open AccessSynthesis and properties of new 2,3,5,6-tetraaminopyridine based polyheteroarylenes
Author(s) -
И. И. Пономарев,
D. Yu. Razorenov,
И. И. Пономарев,
Yu. A. Volkova,
Kirill M. Skupov,
A. A. Lysova,
A. B. Yaroslavtsev
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-5652485144-47
Subject(s) - phosphoric acid , conductivity , proton , polymer , doping , membrane , viscosity , materials science , polymer chemistry , chemical engineering , chemistry , organic chemistry , composite material , optoelectronics , physics , biochemistry , quantum mechanics , engineering
Two new polyheteroarylenes (polydiimidazopyridines) based on 2,3,5,6-tetraaminopyridine and aromatic dicarboxylic acids were synthesized and characterized. The polymers show high viscosity properties and exceptional thermooxidative stability. Polydiimidazopyridine containing a phosphoric acid group possesses excellent filmforming properties and can be processed to proton conducting membranes that have record high proton conductivity in the temperature range of 20-200 °C after doping with orthophosphoric acid.