Keywords
p-diacetylbenzene
4,4'-diacetylbiphenyl
polyphenylenepyridines
porosity
pyrolysis
pyropolymers
specific surface area,
X-ray photoelectron spectroscopy
Abstract
On the basis of p-diacetylbenzene and 4,4'-diacetylbiphenyl, polyphenylenepyridines with a ratio of pyridine to phenylene rings of 1 : 5–6.5 were synthesized. Their heating in argon at 450, 800 and 1000 °C afforded porous polymers with a specific surface area up to 1146 m2 g–1. X-ray photoelectron spectroscopy of these substances showed that nitrogen atoms in them exist mainly in the form of graphite- and pyridine-like systems.
Funders
Russian Science Foundation
19-73-20262P
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