Susceptibility 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 p...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/10/2086 |
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| author | Joanna Brzeska Grzegorz Jasik Wanda Sikorska Barbara Mendrek Jakub Karczewski Marek Kowalczuk Maria Rutkowska |
| author_facet | Joanna Brzeska Grzegorz Jasik Wanda Sikorska Barbara Mendrek Jakub Karczewski Marek Kowalczuk Maria Rutkowska |
| author_sort | Joanna Brzeska |
| collection | DOAJ |
| description | 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 <sup>1</sup>HNMR) and thermal properties (DSC) indicate that these materials are subject to enzymatic degradation caused by the presence of microorganisms in the soil. Chemical modification of branched polyesterurethanes with R,S-PHB and their physical blending with small amounts of PLA and St resulted in a slow but progressive degradation of the samples. |
| first_indexed | 2024-03-10T03:01:03Z |
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| id | doaj.art-af911e40dbfd4fa1b6c99db2dd8a75e5 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T03:01:03Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
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| series | Polymers |
| spelling | doaj.art-af911e40dbfd4fa1b6c99db2dd8a75e52023-11-23T12:47:15ZengMDPI AGPolymers2073-43602022-05-011410208610.3390/polym14102086Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and StarchJoanna Brzeska0Grzegorz Jasik1Wanda Sikorska2Barbara Mendrek3Jakub Karczewski4Marek Kowalczuk5Maria Rutkowska6Department of Industrial Product Quality and Chemistry, Gdynia Maritime University, 83 Morska Street, 81-225 Gdynia, PolandNon-Food and Packaging Laboratory, J.S. Hamilton Poland Sp. z o.o., Chwaszczynska Street 180, 81-571 Gdynia, PolandCentre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Street, 41-819 Zabrze, PolandCentre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Street, 41-819 Zabrze, PolandAdvanced Materials Center, Gdansk University of Technology, Narutowicza Street 11–12, 80-223 Gdansk, PolandCentre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Street, 41-819 Zabrze, PolandDepartment of Industrial Product Quality and Chemistry, Gdynia Maritime University, 83 Morska Street, 81-225 Gdynia, PolandA 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 <sup>1</sup>HNMR) and thermal properties (DSC) indicate that these materials are subject to enzymatic degradation caused by the presence of microorganisms in the soil. Chemical modification of branched polyesterurethanes with R,S-PHB and their physical blending with small amounts of PLA and St resulted in a slow but progressive degradation of the samples.https://www.mdpi.com/2073-4360/14/10/2086polyurethanespoly([R,S)-3-hydroxybutyrate)poly([D,L]-lactide)starch(bio)degradabilitysoil |
| spellingShingle | Joanna Brzeska Grzegorz Jasik Wanda Sikorska Barbara Mendrek Jakub Karczewski Marek Kowalczuk Maria Rutkowska Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch Polymers polyurethanes poly([R,S)-3-hydroxybutyrate) poly([D,L]-lactide) starch (bio)degradability soil |
| title | Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch |
| title_full | Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch |
| title_fullStr | Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch |
| title_full_unstemmed | Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch |
| title_short | Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch |
| title_sort | susceptibility to degradation in soil of branched polyesterurethane blends with polylactide and starch |
| topic | polyurethanes poly([R,S)-3-hydroxybutyrate) poly([D,L]-lactide) starch (bio)degradability soil |
| url | https://www.mdpi.com/2073-4360/14/10/2086 |
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