Pyrolysis of Complexes of Metallosulphophthalocyanines with Chitosan for Obtaining Graphite-Like Structures

The pyrolysis of chitosan and its polymeric complexes with metal phthalocyanines was studied by thermochemical and spectral methods. At all stages of thermal degradation, the decomposition products of chitosan and polymer complexes with metal phthalocyanines were determined by the mass spectral method, the chemistry of the process was proposed. The pyrolysis of chitosan and its polymer complexes with metal sulphophthalocyanines leads to the formation of carbonizates with a wide variety of graphite-like structures with different contents of polyconjugated carbon–carbon bonds, the presence of which was confirmed by IR spectroscopy. It was shown that the introduction of copper(II)tetrasulphophthalocyanine into the composition of the polymer complex with chitosan results in an increase in the content of aliphatic structures in carbonizates, and the introduction of cobalt(II)tetrasulphophthalocyanine leads to aromatic compounds content increase. The possibility of changing the structures of chitosan carbonizates to obtain graphite-like structures by complexation with metal phthalocyanines has been shown.