The effect of aggregate state of octa-(benzo-15-crown-5)-substituted phthalocyanines in aqueous solutions on the structure of self-organized composites of ultrathin ion layers

• Published in: Protection of metals and physical chemistry of surfaces 2016-09, Vol.52 (5), p.839-846
• Main Authors: Ovsyannikova, E. V., Baulin, V. E., Kalashnikova, I. P., Zolotarevskii, V. I., Andreev, V. N., Tsivadze, A. Yu, Alpatova, N. M.
• Format: Article
• Language: English
• Subjects: Aggregates; Aqueous solutions; Characterization and Evaluation of Materials; Chemistry and Materials Science; Corrosion and Coatings; Deposition; Electronics; Fragments; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Metallic Materials; Nanoscale and Nanostructured Materials and Coatings; Particulate composites; Sodium; Surface chemistry; Tribology
• ISSN: 2070-2051; 2070-206X
• DOI: 10.1134/S2070205116040195

The method of layer-by-layer (LbL) deposition from aqueous solutions was used to obtain electrostatic self–organized composites consisting of cationic fragments of octa-[(4′-benzo-15-crown-5)oxy]phthalocyaninates of metals (Mcr8Pc)/K + and anionic fragments of sodium polystyrenesulfonate or 4,4′,4″,4‴-[cobalt phthalocyaninate-2,(3),9,(10),16,(17),23,(24)-tetrayl-tetrakis(oxy)]-tetrabenzoic acid. The electronic absorption spectra of composite coatings indicate preservation of structures formed in aqueous solutions of Mcr 8 Pc: coaxial associates, noncoaxial associates, and high-order aggregates. An increase in the content of noncoaxial associates and the possible presence of suspension particles in the composite are observed.