Thermo-Oxidative Destruction and Biodegradation of Nanomaterials from Composites of Poly(3-hydroxybutyrate) and Chitosan

A complex of structure-sensitive methods of morphology analysis was applied to study film materials obtained from blends of poly(3-hydroxybutyrate) (PHB) and chitosan (CHT) by pouring from a solution, and nonwoven fibrous materials obtained by the method of electrospinning (ES). It was found that wi...

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Bibliographic Details
Published in:Polymers 2021-10, Vol.13 (20), p.3528
Main Authors: Olkhov, Anatoly A., Mastalygina, Elena E., Ovchinnikov, Vasily A., Monakhova, Tatiana V., Vetcher, Alexandre A., Iordanskii, Alexey L.
Format: Article
Language:English
Subjects:
Antiinfectives and antibacterials
Biodegradation
Biopolymers
Carbon dioxide
Chitosan
Laboratories
Microorganisms
Morphology
Nanofibers
Nanomaterials
Oxidation
Polyhydroxybutyrate
Polymer melts
Porous materials
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Summary:A complex of structure-sensitive methods of morphology analysis was applied to study film materials obtained from blends of poly(3-hydroxybutyrate) (PHB) and chitosan (CHT) by pouring from a solution, and nonwoven fibrous materials obtained by the method of electrospinning (ES). It was found that with the addition of CHT to PHB, a heterophase system with a nonequilibrium stressed structure at the interface was formed. This system, if undergone accelerated oxidation and hydrolysis, contributed to the intensification of the growth of microorganisms. On the other hand, the antimicrobial properties of CHT led to inhibition of the biodegradation process. Nonwoven nanofiber materials, since having a large specific surface area of contact with an aggressive agent, demonstrated an increased ability to be thermo-oxidative and for biological degradation in comparison with film materials.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13203528