Collect. Czech. Chem. Commun. 1988, 53, 581-587

An investigation of the formation of molecular complexes of O-(3,5-dinitrobenzoyl)-O-acetylcellulose with n- and π-donors

Gabriel Číka, František Šeršeňb, Anton Blažeja, Viktor Haydena and Bohuslava Havlínováa

a Department of Textile, Cellulose, Pulp and Paper Slovak Institute of Technology, 812 37 Bratislava
b Chemical Institute, Komenský University, 832 32 Bratislava


Soluble O-(3,5-dinitrobenzoyl)-O-acetylcellulose was synthesized, and the formation of molecular complexes with n- and π-donors was investigated. The formation of complexes obeys the Langmuir adsorption isotherm adjusted for macromolecules. The formation of molecular complexes with low-molar mass compounds of the type of heterocyclic compounds, aromatic amines and condensed hydrocarbons was confirmed by electric resistance measurements. The largest decrease in the specific resistance by 2-3 orders of magnitude was observed with indole and phenothiazine, while the specific resistance of the other types of donors decreased by 1-2 orders of magnitude. A decrease in the activation energy took place with all types of complexes.