biostudies-literatureBrzeska JEuropean Union's Horizon 2020 research and innovation program under the Marie Sklodowska-CurieEuropean Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie2086https://www.ebi.ac.uk/biostudies/studies/S-EPMC9144702biostudies-literatureUnknown14(10)A very important method of reducing the amount of polymer waste in the environment is the introduction to the market of polymers susceptible to degradation under the influence of environmental factors. This paper presents the results of testing the susceptibility to degradation in soil of branched polyesterurethane (PUR) based on poly([R,S]-3-hydroxybutyrate) (R,S-PHB), modified with poly([D,L]-lactide) (PLA) and starch (St). Weight losses of samples and changes in surface morphology (SEM, OM and contact angle system) with simultaneously only slight changes in molecular weight (GPC), chemical structure (FTIR and ¹HNMR) and thermal properties (DSC) indicate that these materials are subject to enzymatic degradation caused by the presence of microorganisms in the soil. Chemical modPolymersSusceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch.PMC9144702No. 872152Kowalczuk MMendrek BSikorska WRutkowska MBrzeska JJasik GKarczewski JfalseSusceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch.A very important method of reducing the amount of polymer waste in the environment is the introduction to the market of polymers susceptible to degradation under the influence of environmental factors. This paper presents the results of testing the susceptibility to degradation in soil of branched polyesterurethane (PUR) based on poly([R,S]-3-hydroxybutyrate) (R,S-PHB), modified with poly([D,L]-lactide) (PLA) and starch (St). Weight losses of samples and changes in surface morphology (SEM, OM and contact angle system) with simultaneously only slight changes in molecular weight (GPC), chemical structure (FTIR and ¹HNMR) and thermal properties (DSC) indicate that these materials are subject to enzymatic degradation caused by the presence of microorganisms in the soil. Chemical mod2022-01-01T00:00:00Z2022 May2025-04-05T11:58:26.306Z2024-11-05T20:37:57.068ZS-EPMC91447023563196810.3390/polym14102086