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Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study

Poly(L-lactide) is capable of self-assembly into a nematic mesophase under the influence of temperature and mechanical stresses. Therefore, subsequent poly(L-lactide) films were obtained and characterized, showing nematic liquid crystal properties both before and after degradation. Herein, we presen...

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Autores principales: Rydz, Joanna, Duale, Khadar, Janeczek, Henryk, Sikorska, Wanda, Marcinkowski, Andrzej, Musioł, Marta, Godzierz, Marcin, Kordyka, Aleksandra, Sobota, Michał, Peptu, Cristian, Koseva, Neli, Kowalczuk, Marek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319020/
https://www.ncbi.nlm.nih.gov/pubmed/35887040
http://dx.doi.org/10.3390/ijms23147693
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author Rydz, Joanna
Duale, Khadar
Janeczek, Henryk
Sikorska, Wanda
Marcinkowski, Andrzej
Musioł, Marta
Godzierz, Marcin
Kordyka, Aleksandra
Sobota, Michał
Peptu, Cristian
Koseva, Neli
Kowalczuk, Marek
author_facet Rydz, Joanna
Duale, Khadar
Janeczek, Henryk
Sikorska, Wanda
Marcinkowski, Andrzej
Musioł, Marta
Godzierz, Marcin
Kordyka, Aleksandra
Sobota, Michał
Peptu, Cristian
Koseva, Neli
Kowalczuk, Marek
author_sort Rydz, Joanna
collection PubMed
description Poly(L-lactide) is capable of self-assembly into a nematic mesophase under the influence of temperature and mechanical stresses. Therefore, subsequent poly(L-lactide) films were obtained and characterized, showing nematic liquid crystal properties both before and after degradation. Herein, we present that, by introducing β-cyclodextrin into the polymer matrix, it is possible to obtain a chiral nematic mesophase during pressing, regardless of temperature and time. The obtained poly(L-lactide) films exhibiting liquid crystal properties were subjected to degradation tests and the influence of degradation on these properties was determined. Thermotropic phase behavior was investigated using polarized optical microscopy, X-ray diffraction, and differential scanning calorimetry. The degradation process demonstrated an influence on the liquid crystal properties of pressed polymer films. The colored planar texture of the chiral nematic mesophase, which was not observed prior to degradation in films without the addition of β-cyclodextrin, 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 liquid crystals in (bio)degradable polymers using a simple method, demonstrate the potential for advanced photonic applications.
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spelling pubmed-93190202022-07-27 Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study Rydz, Joanna Duale, Khadar Janeczek, Henryk Sikorska, Wanda Marcinkowski, Andrzej Musioł, Marta Godzierz, Marcin Kordyka, Aleksandra Sobota, Michał Peptu, Cristian Koseva, Neli Kowalczuk, Marek Int J Mol Sci Article Poly(L-lactide) is capable of self-assembly into a nematic mesophase under the influence of temperature and mechanical stresses. Therefore, subsequent poly(L-lactide) films were obtained and characterized, showing nematic liquid crystal properties both before and after degradation. Herein, we present that, by introducing β-cyclodextrin into the polymer matrix, it is possible to obtain a chiral nematic mesophase during pressing, regardless of temperature and time. The obtained poly(L-lactide) films exhibiting liquid crystal properties were subjected to degradation tests and the influence of degradation on these properties was determined. Thermotropic phase behavior was investigated using polarized optical microscopy, X-ray diffraction, and differential scanning calorimetry. The degradation process demonstrated an influence on the liquid crystal properties of pressed polymer films. The colored planar texture of the chiral nematic mesophase, which was not observed prior to degradation in films without the addition of β-cyclodextrin, 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 liquid crystals in (bio)degradable polymers using a simple method, demonstrate the potential for advanced photonic applications. MDPI 2022-07-12 /pmc/articles/PMC9319020/ /pubmed/35887040 http://dx.doi.org/10.3390/ijms23147693 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rydz, Joanna
Duale, Khadar
Janeczek, Henryk
Sikorska, Wanda
Marcinkowski, Andrzej
Musioł, Marta
Godzierz, Marcin
Kordyka, Aleksandra
Sobota, Michał
Peptu, Cristian
Koseva, Neli
Kowalczuk, Marek
Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
title Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
title_full Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
title_fullStr Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
title_full_unstemmed Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
title_short Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
title_sort nematic-to-isotropic phase transition in poly(l-lactide) with addition of cyclodextrin during abiotic degradation study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319020/
https://www.ncbi.nlm.nih.gov/pubmed/35887040
http://dx.doi.org/10.3390/ijms23147693
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