Abstract
The conditions of formation and composition of polyethylenimine complexes with silver ions in aqueous solutions are found. The complex is formed according to the model of a uniform distribution of ions throughout the macromolecule, and the composition of the complex may vary depending on pH of the medium. The size parameters are determined and the volume fractions of polyethylenimine macromolecular coils in solution are calculated. The synthesis of silver iodide particles is carried out under conditions where the silver ions are bound in the complex with polyethylenimine macromolecules and are distributed homogeneously over the volume of solution. The use of the polyethyleneimine complex with silver ions as a precursor of silver iodide allows the preparation of particles 1.2 nm in diameter with a narrow size distribution.
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