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Rydz, Joanna, 2024, "Research data for the publication 'Specific condis crystal-like mesophase of poly(butylene succinate-co-butylene adipate)'", https://doi.org/10.18150/ME1O9Q, RepOD, V1
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Understanding the properties of polymers, such as their crystallinity, is crucial for their material performance and predicting their behavior during and after use, especially in the case of environmentally friendly (bio)degradable polymers, enabling optimized design. In this work, for the first time, a pressure-induced condis crystal-like mesophase of poly(butylene succinate-co-butylene adipate) (PBSA) is presented. The phase behavior of pressed films obtained from commercial PBSA with 25% butylene adipate units is investigated at various processing temperatures from room temperature to 100 °C, pressed at a pressure of the press jaws and at 2–5 t for 1–5 min. The characterization and quantification evaluation of the condis crystal-like mesophase of pressed PBSA formed at temperatures above the glass transition is investigated by X-ray diffraction, polarized optical microscopy (POM), and differential scanning calorimetry (DSC) methods. Our results demonstrate that pressed PBSA films at 60 °C show a condis crystal-like mesophase, characterized by the presence of reflections at wide angles, birefringence by POM, as well as a higher melting point (endotherm) by DSC. The resulting oriented mesomorphic green polymer can, in a sustainable manner, expand further technological applications of (bio)degradable polymers, especially in the medical field, and open up opportunities for further research that could provide such polymers with tailored persistence and degradation, thus changing the shelf life.
All explanations of research procedures, methodologies and analyzes are described in the Raw_data_ACS_Sustainable_Chem_Eng.odt file.
Zrozumienie właściwości polimerów, takich jak ich krystaliczność, ma kluczowe znaczenie dla właściwości użytkowych materiałów polimerowych oraz przewidywania ich zachowania w trakcie i po użyciu, zwłaszcza w przypadku polimerów (bio)degradowalnych, przyjaznych dla środowiska, co umożliwia zoptymalizowane projektowanie. W tej pracy po raz pierwszy przedstawiono indukowaną ciśnieniem mezofazę poli(bursztynianu butylenu-ko-adypinianu butylenu) (PBSA) przypominającą kryształ condis. Badano zachowanie fazowe folii prasowanych otrzymanych z handlowego PBSA z dodatkiem 25% adypinianu butylenu w różnych temperaturach przetwarzania od temperatury pokojowej do 100°C, prasowanych pod naciskiem szczęk prasy i przy nacisku 2–5 t przez 1–5 min. Charakterystykę i ocenę ilościową mezofazy condis sprasowanego PBSA utworzonej w temperaturach powyżej zeszklenia bada się metodami dyfrakcji promieni rentgenowskich, spolaryzowanej mikroskopii optycznej (POM) i różnicowej kalorymetrii skaningowej (DSC). Nasze wyniki pokazują, że prasowane folie PBSA w temperaturze 60°C wykazują mezofazę przypominającą kryształ condis, charakteryzującą się obecnością odbić pod szerokimi kątami, dwójłomnością badaną w POM, a także wyższą temperaturą topnienia (endotermą) z DSC. Powstały zorientowany mezomorficzny zielony polimer może w zrównoważony sposób rozszerzyć dalsze zastosowania technologiczne polimerów (bio)degradowalnych, szczególnie w medycynie, i otworzyć możliwości dalszych badań, które mogłyby zapewnić takim polimerom dostosowaną trwałość i degradację, zmieniając w ten sposób okres przydatności do użytku.
Wszystkie objaśnienia procedur badawczych, metodologii i analiz są opisane w pliku Raw_data_ACS_Sustainable_Chem_Eng.odt.
poly(butylene succinate-co-butylene adipate), PBSA, condis crystal, liquid crystal, conformationally distorted crystal, poli(bursztynian butylenu-ko-adypinian butylenu), PBSA, kryształ condis, ciekły kryształ, kryształ zniekształcony konformacyjnie
K. Duale, H. Janeczek, M. Godzierz, Á. György Juhász, J. Rydz, Specific condis crystal-like mesophase of poly(butylene succinate-co-butylene adipate), ACS Sustainable Chem. Eng., https://doi.org/10.1021/acssuschemeng.4c03285 https://doi.org/10.1021/acssuschemeng.4c03285 doi: 10.1021/acssuschemeng.4c03285
CC BY-SA Creative Commons Attribution - ShareAlike 4.0
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