{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T16:31:44Z","timestamp":1791217904633,"version":"4.1.0"},"reference-count":67,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2021,3,18]],"date-time":"2021-03-18T00:00:00Z","timestamp":1616025600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"RUDN","award":["5100"],"award-info":[{"award-number":["5100"]}]},{"DOI":"10.13039\/501100002261","name":"Russian Foundation for Basic Research","doi-asserted-by":"publisher","award":["18-29-05017"],"award-info":[{"award-number":["18-29-05017"]}],"id":[{"id":"10.13039\/501100002261","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Russian Federation  State Program of Fundamental Scientific Investigation","award":["RAN \u0410\u0410\u0410\u0410-\u041017-117040610309-0"],"award-info":[{"award-number":["RAN \u0410\u0410\u0410\u0410-\u041017-117040610309-0"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Ultrathin electrospun fibers of pristine biopolyesters, poly(3-hydroxybutyrate) (PHB) and polylactic acid (PLA), as well as their blends, have been obtained and then explored after exposure to hydrolytic (phosphate buffer) and oxidative (ozone) media. All the fibers were obtained from a co-solvent, chloroform, by solution-mode electrospinning. The structure, morphology, and segmental dynamic behavior of the fibers have been determined by optical microscopy, SEM, ESR, and others. The isotherms of water absorption have been obtained and the deviation from linearity (the Henry low) was analyzed by the simplified model. For PHB-PLA fibers, the loss weight increments as the reaction on hydrolysis are symbate to water absorption capacity. It was shown that the ozonolysis of blend fibrils has a two-stage character which is typical for O3 consumption, namely, the pendant group\u2019s oxidation and the autodegradation of polymer molecules with chain rupturing. The first stage of ozonolysis has a quasi-zero-order reaction. A subsequent second reaction stage comprising the back-bone destruction has a reaction order that differs from the zero order. The fibrous blend PLA\/PHB ratio affects the rate of hydrolysis and ozonolysis so that the fibers with prevalent content of PLA display poor resistance to degradation in aqueous and gaseous media.<\/jats:p>","DOI":"10.3390\/polym13060941","type":"journal-article","created":{"date-parts":[[2021,3,18]],"date-time":"2021-03-18T22:19:36Z","timestamp":1616105976000},"page":"941","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Aggressive Impacts Affecting the Biodegradable Ultrathin Fibers Based on Poly(3-Hydroxybutyrate), Polylactide and Their Blends: Water Sorption, Hydrolysis and Ozonolysis"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0615-6914","authenticated-orcid":false,"given":"Anatoly A.","family":"Olkhov","sequence":"first","affiliation":[{"name":"Department of Chemistry and Physics, Plekhanov Russian University of Economics, Stremyanny Ln 36, 117997 Moscow, Russia"},{"name":"N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia"},{"name":"N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Polina M.","family":"Tyubaeva","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Physics, Plekhanov Russian University of Economics, Stremyanny Ln 36, 117997 Moscow, Russia"},{"name":"N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4828-8571","authenticated-orcid":false,"given":"Alexandre A.","family":"Vetcher","sequence":"additional","affiliation":[{"name":"Nanotechnology Scientific and Educational Center, Institute of Biochemical Technology and Nanotechnology, Peoples\u2019 Friendship University of Russia (RUDN), Miklukho-Maklaya St. 6, 117198 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Svetlana G.","family":"Karpova","sequence":"additional","affiliation":[{"name":"N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander S.","family":"Kurnosov","sequence":"additional","affiliation":[{"name":"N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Svetlana Z.","family":"Rogovina","sequence":"additional","affiliation":[{"name":"N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0771-0825","authenticated-orcid":false,"given":"Alexey L.","family":"Iordanskii","sequence":"additional","affiliation":[{"name":"N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander A.","family":"Berlin","sequence":"additional","affiliation":[{"name":"N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"238","DOI":"10.1007\/s11706-016-0344-x","article-title":"A review on biodegradable materials for cardiovascular stent application","volume":"10","author":"Hou","year":"2016","journal-title":"Front. Mater. Sci."},{"key":"ref_2","first-page":"185","article-title":"Nanomaterials for treating cardiovascular diseases: A review","volume":"2","author":"Jiang","year":"2017","journal-title":"Bioact. Mater."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1720","DOI":"10.1016\/j.progpolymsci.2013.05.010","article-title":"Multifunctional nanostructured PLA materials for packaging and tissue engineering","volume":"38","author":"Armentano","year":"2013","journal-title":"Prog. 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