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Your search keyword '"Voronov, Andriy"' showing total 20 results
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20 results on '"Voronov, Andriy"'

1. Hydrophobization of Nanocrystalline and Microf ibrillated Cellulose Using Covalent Grafting of Plant Oil-Based Copolymers

Author

Shevtsova, Tetiana, Demchuk, Zoriana, Shevchuk, Oleh, Minko, Sergiy, and Voronov, Andriy

Subjects
Cellulose -- Chemical properties, Toiletries -- Chemical properties, Food container industry -- Chemical properties, Business, Chemicals, plastics and rubber industries
Abstract

Cellulose, a linear polysaccharide biopolymer, has applications in various industries including food packaging, personal care products, and construction, due to its unique physico-chemical properties, as well as its biocompatibility and [...]

Published
2024

20. Synthesis of Covalently Cross-Linked Colloidosomes from Peroxidized Pickering Emulsions.

Author

Popadyuk, Nadiya, Popadyuk, Andriy, Tarnavchyk, Ihor, Budishevska, Olha, Kohut, Ananiy, Voronov, Andriy, and Voronov, Stanislav

Subjects
EMULSION polymerization, CARBOXYL group, PEROXIDES
Abstract

A new approach to the formation of cross-linked colloidosomes was developed on the basis of Pickering emulsions that were stabilized exclusively by peroxidized colloidal particles. Free radical polymerization and a soft template technique were used to convert droplets of a Pickering emulsion into colloidosomes. The peroxidized latex particles were synthesized in the emulsion polymerization process using amphiphilic polyperoxide copolymers poly(2-tert-butylperoxy-2-methyl-5-hexen-3-ine-co-maleic acid) (PM-1-MAc) or poly[N-(tert-butylperoxymethyl)acrylamide]-co-maleic acid (PM-2-MAc), which were applied as both initiators and surfactants (inisurfs). The polymerization in the presence of the inisurfs results in latexes with a controllable amount of peroxide and carboxyl groups at the particle surface. Peroxidized polystyrene latex particles with a covalently grafted layer of inisurf PM-1-MAc or PM-2-MAc were used as Pickering stabilizers to form Pickering emulsions. A mixture of styrene and/or butyl acrylate with divinylbenzene and hexadecane was applied as a template for the synthesis of colloidosomes. Peroxidized latex particles located at the interface are involved in the radical reactions of colloidosomes formation. As a result, covalently cross-linked colloidosomes were obtained. It was demonstrated that the structure of the synthesized (using peroxidized latex particles) colloidosomes depends on the amount of functional groups and pH during the synthesis. Therefore, the size and morphology of colloidosomes can be controlled by latex particle surface properties. [ABSTRACT FROM AUTHOR]

Published
2016
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