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Rydz, Joanna, 2022, "Research data for the publication 'Nematic-to-isotropic phase transition in poly(L-Lactide) with addition of cyclodextrin during abiotic degradation study'", https://doi.org/10.18150/1TNWMM, RepOD, V1
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Research data for publication funded by the GREEN-MAP project. Includes macro images, GPC, DSC, X-ray, POM and AFM analyzes. The paper presents research on the liquid crystal (LC) properties of plain poly(L-lactide) (PLLA) and a physical mixture – composite – PLA with monodisperse sequence of methylated β-cyclodextrin (RM-β-CD) which was prepared with the use of a press, in order to develop a comprehensive characterization of (bio)degradable polyesters obtained under pressure. By introducing RM-β-CD into the polymer matrix, it is possible to obtain a chiral nematic mesophase during pressing, regardless of temperature and time. The obtained PLLA films exhibiting LC properties were subjected to degradation tests and the influence of degradation on these properties was determined. The degradation process demonstrated that colored planar texture of the chiral nematic mesophase, which was not observed prior to degradation in films without the addition of RM-β-CD, appeared after incubation in water as a result of the entrapment of degradation products in the polymer matrix. These unusual tailor-made properties, obtained in (bio)degradable polymers with LC properties using a simple method, demonstrate the potential for photonic applications.
Dane badawcze do publikacji finansowanej w ramach projektu GREEN-MAP. Obejmują analizy GPC, DSC, X-ray, POM i AFM. W pracy przedstawiono badania właściwości ciekłokrystalicznych (LC) poli(L-laktydu) (PLLA) oraz jego mieszaniny fizycznej – kompozytu – PLLA z monodyspersyjną sekwencją metylowanej β-cyklodekstryny (RM-β-CD), które zostały przygotowane przy użyciu prasy w celu opracowania kompleksowej charakterystyki (bio)degradowalnych poliestrów otrzymywanych przez sprasowanie. Dzięki wprowadzeniu RM-β-CD do matrycy polimerowej możliwe jest uzyskanie chiralnej mezofazy nematycznej podczas prasowania, niezależnie od temperatury i czasu. Otrzymane filmy z PLLA wykazujące właściwości LC poddano degradacji i określono jej wpływ na te właściwości. Wykazano, że w procesie degradacji barwna tekstura planarna chiralnej mezofazy nematycznej, której nie obserwowano przed degradacją w foliach bez dodatku RM-β-CD, pojawiła się po inkubacji w wodzie w wyniku uwięzienia produktów degradacji w matrycy polimerowej. Te niezwykłe właściwości dostosowane do potrzeb, uzyskane w (bio)degradowalnych polimerach o właściwościach LC za pomocą prostej metody, świadczą o ich potencjale do zastosowań fotonicznych.
poly(L-lactide), cyclodextrin, liquid crystal, chiral nematic, tailor-made properties, poli(L-laktyd), cyklodekstryna, ciekły kryształ, chiralny nematyk, właściwości "szyte na miarę"
J. Rydz, K. Duale, H. Janeczek, W. Sikorska, A. Marcinkowski, M. Musioł, M. Godzierz, A. Kordyka, M. Sobota, C. Peptu, N. Koseva, M. Kowalczuk, Nematic-to-isotropic phase transition in poly(L-lactide) with addition of cyclodextrin during abiotic degradation study, Int. J. Mol. Sci. 23, 7693 (2022), 18 pages, https://doi.org/10.3390/ijms23147693 https://doi.org/10.3390/ijms23147693 doi: 10.3390/ijms23147693
CC BY-SA Creative Commons Attribution - ShareAlike 4.0
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