Hydrolysis of Biodegradable Fibrous and Film Materials Based on Polylactide and Poly(3-hydroxybutyrate) Polyesters and Their Compositions with Chitosan

Роговина, С. З.; Zhorina, L. A.; Olkhov, A. A.; Yakhina, Anastasia; Kucherenko, E. L.; Iordanskiy, A. L.; Берлин, А. А.

doi:10.1134/s1995421222030224

Cited by 2 publications

(3 citation statements)

References 24 publications

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“…Non-woven fibrous materials can be successfully used as disposable, environmentally friendly, biodegradable products; sorbents for cleaning water or soil from oil products [23] or heavy metal compounds [24,25]. An important property of these disposable materials is their ability to have programmable degradation under environmental conditions: microorganisms, water, and oxidizing agents.…”

Section: Resultsmentioning

confidence: 99%

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Biological and Oxidative Degradation of Ultrathin-Fibrous Nonwovens Based on Poly(lactic Acid)/Poly(3-Hydroxybutyrate) Blends

Olkhov

Mastalygina

Ovchinnikov

et al. 2023

IJMS

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Developing biodegradable materials based on polymer blends with a programmable self-destruction period in the environmental conditions of living systems is a promising direction in polymer chemistry. In this work, novel non-woven fibrous materials obtained by electrospinning based on the blends of poly(lactic acid) (PLA) and poly(3-hydroxybutyrate) (PHB) were developed. The kinetics of biodegradation was studied in the aquatic environment of the inoculum of soil microorganisms. Oxidative degradation was studied under the ozone gaseous medium. The changes in chemical composition and structure of the materials were studied by optical microscopy, DSC, TGA, and FTIR-spectroscopy. The disappearance of the structural bands of PHB in the IR-spectra of the blends and a significant decrease in the enthalpy of melting after 90 days of exposure in the inoculum indicated the biodegradation of PHB while PLA remained stable. It was shown that the rate of ozonation was higher for PLA and the blends with a high content of PLA. The lower density of the amorphous regions of the blends determined an increased rate of their oxidation by ozone compared to homopolymers. The optimal composition in terms of degradation kinetics is a fibrous material based on the blend of 30PLA/70PHB that can be used as an effective ecosorbent, for biopackaging, and as a highly porous covering material for agricultural purposes.

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Section: Resultsmentioning

confidence: 99%

“…In this case, in two-phase polymeric systems, there is a forced separation of polymeric components with the formation of an additional free volume. The properties of such compositions intended for oil sorption were studied in [23,24].…”

Section: Resultsmentioning

confidence: 99%

Biological and Oxidative Degradation of Ultrathin-Fibrous Nonwovens Based on Poly(lactic Acid)/Poly(3-Hydroxybutyrate) Blends

Olkhov

Mastalygina

Ovchinnikov

et al. 2023

IJMS

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“…This is explained by PLA hydrolysis proceeding readily above its glass transition temperature (55–62 °C) [ 27 ]. Previously, in [ 28 , 29 ], we studied the features of hydrolysis and ozonolysis of PLA, PHB, and ternary compositions based on PLA, PHB, and chitosan, as well as their sorption properties with respect to metal ions [ 30 ]. The elaborated PLA–PHB binary compositions were successfully used for oil sorption from aqueous media [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrolysis, Biodegradation and Ion Sorption in Binary Biocomposites of Chitosan with Polyesters: Polylactide and Poly(3-Hydroxybutyrate)

et al. 2023

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The film binary composites polylactide (PLA)–chitosan and poly(3-hydroxybutyrate) (PHB)–chitosan have been fabricated and their functional characteristics, such as hydrolysis resistance, biodegradation in soil, and ion sorption behavior have been explored. It was established that hydrolysis temperature and acidity of solutions are differently affected by the weight loss of these two systems. Thus, in the HCl aqueous solutions, the stability of the PHB-chitosan composites is higher than the stability of the PLA-chitosan one, while the opposite situation was observed for biodegradation in soil. The sorption capacity of both composites to Fe3+ ions was investigated and it was shown that, for PHB-chitosan composites, the sorption is higher than for PLA-chitosan. It was established that kinetics of sorption obeys the pseudo-first-order equation and limiting values of sorption correspond to Henry’s Law formalism. By scanning electron microscopy (SEM), the comparative investigation of initial films and films containing sorbed ions was made and the change of films surface after Fe3+ sorption is demonstrated. The findings presented could open a new horizon in the implementation of novel functional biodegradable composites.

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Hydrolysis of Biodegradable Fibrous and Film Materials Based on Polylactide and Poly(3-hydroxybutyrate) Polyesters and Their Compositions with Chitosan

Cited by 2 publications

References 24 publications

Biological and Oxidative Degradation of Ultrathin-Fibrous Nonwovens Based on Poly(lactic Acid)/Poly(3-Hydroxybutyrate) Blends

Biological and Oxidative Degradation of Ultrathin-Fibrous Nonwovens Based on Poly(lactic Acid)/Poly(3-Hydroxybutyrate) Blends

Hydrolysis, Biodegradation and Ion Sorption in Binary Biocomposites of Chitosan with Polyesters: Polylactide and Poly(3-Hydroxybutyrate)

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