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Biodegradable Polymer: Structure, Properties and Applications

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Prof. Dr. Alexander Anatolyevich Yaroslavov

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Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
Interests: water soluble polymers, including polyelectrolytes; biodegradable polymers and hydrogels; colloids, liposomes and lipid monolayers; interpolymer and polymer-colloid complexes; biocidal polymer-based films; biomedical application of (bio)polymers

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Dear Colleagues,

Nowadays, polymers play an important role in our lives. The use of conventional synthetic polymers derived from petroleum resources has given rise to new problems associated with the disposal of polymer waste. Synthetic polymers decompose extremely slowly, thus polluting the environment. In contrast, biodegradable polymers are broken into smaller fragments that are attacked by microorganisms. A combination of conventional and biodegradable polymers allows new hybrid materials and products whose biological, physicomechanical, and operational properties can be accurately controlled over a wide range.

This Special Issue, “Biodegradable Polymer: Structure, Properties and Applications”, presents publications with new research results, showing the close relationship between the compositions and properties of novel biodegradable and hybrid polymers with potential usage in packaging, agriculture, medicine, and other areas. Interdisciplinary publications that involve methods and approaches from related fields of science are particularly welcome, allowing deeper insights into biodegradable polymeric constructs for their controlled manipulation.

We accept full articles and research reviews reflecting important and recent developments in the field of polymer synthesis, as well as analyses of their structures, properties, and applications.

Prof. Dr. Alexander Anatolyevich Yaroslavov
Guest Editor

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Keywords

biodegradable polymers
synthesis
structure
properties
applications

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15 pages, 2521 KiB

Open AccessArticle

Double Photocrosslinked Responsive Hydrogels Based on Hydroxypropyl Guar

by Alexander S. Ospennikov, Andrey V. Shibaev and Olga E. Philippova

Int. J. Mol. Sci. 2023, 24(24), 17477; https://doi.org/10.3390/ijms242417477 - 14 Dec 2023

Viewed by 534

Abstract

Double crosslinked hydrogels based on a biodegradable polymer were prepared by photocopolymerization of methacrylated hydroxypropyl guar (HPG-MA) and 3-acrylamidophenylboronic acid. Along with irreversible strong covalent crosslinks by methacrylic groups, these hydrogels contained labile boronate crosslinks formed as a result of the interaction of boronic acid with cis-diol moieties of HPG. These hydrogels demonstrated higher elasticity than HPG-MA hydrogels with only irreversible covalent crosslinks. Labile boronate crosslinks not only strengthened the hydrogels but also imparted to them pronounced responsive properties. It was demonstrated that the mechanical properties, the swelling behavior, as well as the uptake and release of some substances from the double crosslinked hydrogel were pH controlled. For instance, the hydrogels could release cationic disinfectant at a rate regulated by pH. Such photocrosslinkable in situ forming hydrogels are very promising for the production of smart coatings that release targeted substances at the desired rate. Full article

(This article belongs to the Special Issue Biodegradable Polymer: Structure, Properties and Applications)

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11 pages, 6690 KiB

Open AccessArticle

Biodegradable Water-Soluble Matrix for Immobilization of Biocidal 4-Hexylresorcinol

by Olga A. Novoskoltseva, Ekaterina A. Litmanovich, Nataliya G. Loiko, Yury A. Nikolaev and Alexander A. Yaroslavov

Int. J. Mol. Sci. 2023, 24(19), 14717; https://doi.org/10.3390/ijms241914717 - 28 Sep 2023

Viewed by 756

Abstract

Biocidal coatings have been used in biomedicine, cosmetology and the food industry. In this article, the coatings are described as being composed of non-stoichiometric polycomplexes, products of electrostatic coupling of two commercial biodegradable ionic polymers, anionic sodium alginate and cationic quaternized hydroxyethyl cellulose ethoxylate. Non-stoichiometric polycomplexes with a 5-fold excess of the cationic polymer were used for immobilizing hydrophobic biocidal 4-hexylresorcinol (HR). Being dispersed in water, the polycomplex particles were capable of absorbing a tenfold excess of HR in relation to the polycation. After deposition onto the plastic surface and drying, the aqueous polycomplex–HR composite formulation forms a transparent homogeneous coating, which swells slightly in water. The interpolyelectrolyte complex (IPEC) is substantially non-toxic. The incorporation of HR in the IPEC imparts antimicrobial activity to the resulting composite, in both aqueous solutions and coatings, against Gram-negative and Gram-positive bacteria and yeast. The polysaccharide-based polycomplexes with embedded HR are promising for the fabrication of biocidal films and coatings. Full article

(This article belongs to the Special Issue Biodegradable Polymer: Structure, Properties and Applications)

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