Supramolecular Self-Assembly and Phase Transformations in Aqueous Systems Based on Chitosan and Sulfonated Metallophthalocyanines

The supramolecular self-assembly in mixed low-concentrated aqueous solutions of chitosan and sulfonated metallophthalocyanines was examined by spectroscopic and dynamic light scattering techniques. The research subjects were Cu(II) and Co(II) tetrasulfophthalocyaninates, as well as Cu(II) phthalocya...

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Published inRussian journal of general chemistry Vol. 89; no. 3; pp. 612 - 618
Main Authors Lipatova, I. M., Mezina, E. A., Yusova, A. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2019
Springer
Springer Nature B.V
Subjects
Aqueous solutions
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Chitosan
Metal phthalocyanines
Metastable state
Phase separation
Phase transitions
Photon correlation spectroscopy
Self-assembly
chitosan
electrostatic self-assembly
sulfonated metallophthalocyanines
supramolecular complexes
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Summary:The supramolecular self-assembly in mixed low-concentrated aqueous solutions of chitosan and sulfonated metallophthalocyanines was examined by spectroscopic and dynamic light scattering techniques. The research subjects were Cu(II) and Co(II) tetrasulfophthalocyaninates, as well as Cu(II) phthalocyaninate containing sulfonate groups and a vinylsulfonic substituent. The resulting supramolecular complexes were characterized by a reproducible stoichiometric composition, as well as by the ability to move slowly into a colloidal-dispersed state. Phase separation was preceded by a metastable state with unchanging spectral characteristics, for which the size and ζ-potential of the primary supramolecular particles were determined.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363219030423