Version 1
: Received: 25 July 2023 / Approved: 26 July 2023 / Online: 26 July 2023 (10:37:46 CEST)
How to cite:
Ponomarenko, J.; Pals, M.; Lauberts, M.; Arshanitsa, A. Influence of Black Alder Bark Extractives as Integral Building Blocks on the Susceptibility to Biodegradation of Resilient Polyether Polyurethanes. Preprints2023, 2023071783. https://doi.org/10.20944/preprints202307.1783.v1
Ponomarenko, J.; Pals, M.; Lauberts, M.; Arshanitsa, A. Influence of Black Alder Bark Extractives as Integral Building Blocks on the Susceptibility to Biodegradation of Resilient Polyether Polyurethanes. Preprints 2023, 2023071783. https://doi.org/10.20944/preprints202307.1783.v1
Ponomarenko, J.; Pals, M.; Lauberts, M.; Arshanitsa, A. Influence of Black Alder Bark Extractives as Integral Building Blocks on the Susceptibility to Biodegradation of Resilient Polyether Polyurethanes. Preprints2023, 2023071783. https://doi.org/10.20944/preprints202307.1783.v1
APA Style
Ponomarenko, J., Pals, M., Lauberts, M., & Arshanitsa, A. (2023). Influence of Black Alder Bark Extractives as Integral Building Blocks on the Susceptibility to Biodegradation of Resilient Polyether Polyurethanes. Preprints. https://doi.org/10.20944/preprints202307.1783.v1
Chicago/Turabian Style
Ponomarenko, J., Maris Lauberts and Alexandr Arshanitsa. 2023 "Influence of Black Alder Bark Extractives as Integral Building Blocks on the Susceptibility to Biodegradation of Resilient Polyether Polyurethanes" Preprints. https://doi.org/10.20944/preprints202307.1783.v1
Abstract
In response to growing environmental concerns and the need for sustainable resources, researchers worldwide are examining how to develop materials that are environmentally friendly and that can be effectively recycled as they reach the end of their useful life. Particularly interesting are polyurethanes (PUs), a broad class of synthetic polymers utilized in several applications. However, because of the high energy consumption and unwanted chemical side reactions, their chemical recycling is challenging. A possible method for recovering PU is biological recycling, which breaks down complex compounds using microbes and enzymes. The biodegradation susceptibility of novel PUs using tree bark extractives as building blocks is examined in this work. The PUs were synthesized with partial or complete substitution of conventional fossil-based polyol (PEG 400) with hydrophilic extractives from black alder bark. Biodegradation experiments in sewage water and compost-enriched soil were conducted over 60 days. Results indicate increased biodegradation in PUs containing bark-based polyols, showing weight losses of up to 15.7% and 15.6% in sewage water and soil, respectively, compared to 9.6% and 12.4% for fossil-based PU. Analytical pyrolysis and FTIR analysis revealed more significant structural changes in extractives-containing PU materials after biodegradation compared to fossil-based PU, indicating the cleavage of covalent bonds mainly in carbohydrate and aromatic constituents of biopolyol. But the urethane bonds revealed the highest stability towards biodegradation compared to others linkages in both fossil-based and bio-based PU. The study demonstrates the potential of using bark-derived polyols to design PU materials suitable for biological recycling, contributing to more environmentally friendly waste management strategies. Further investigations are needed to optimize the conditions for the biological conversion of PU materials synthesized with bark-based polyols.
Chemistry and Materials Science, Polymers and Plastics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
