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New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization

Physical cryogels were obtained using the successive freeze–thaw technique of poly(vinyl alcohol) (PVA)/poly(ethylene brassylate-co-squaric acid) (PEBSA) solutions. The cryogel systems were prepared by using two different molecular weights of PVA and PEBSA with three different ratios between the eth...

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Autores principales: Crețu, Bianca-Elena-Beatrice, Nita, Loredana Elena, Șerban, Alexandru-Mihail, Rusu, Alina Gabriela, Doroftei, Florica, Chiriac, Aurica P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9317470/
https://www.ncbi.nlm.nih.gov/pubmed/35889641
http://dx.doi.org/10.3390/nano12142420
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author Crețu, Bianca-Elena-Beatrice
Nita, Loredana Elena
Șerban, Alexandru-Mihail
Rusu, Alina Gabriela
Doroftei, Florica
Chiriac, Aurica P.
author_facet Crețu, Bianca-Elena-Beatrice
Nita, Loredana Elena
Șerban, Alexandru-Mihail
Rusu, Alina Gabriela
Doroftei, Florica
Chiriac, Aurica P.
author_sort Crețu, Bianca-Elena-Beatrice
collection PubMed
description Physical cryogels were obtained using the successive freeze–thaw technique of poly(vinyl alcohol) (PVA)/poly(ethylene brassylate-co-squaric acid) (PEBSA) solutions. The cryogel systems were prepared by using two different molecular weights of PVA and PEBSA with three different ratios between the ethylene brassylate (EB) and squaric acid (SA) comonomers. The presence of interactions, the thermal properties and the morphology were investigated using Fourier Transform Infrared Spectroscopy (FT-IR), thermogravimetry (TGA and DTG) and scanning electron microscopy (SEM), respectively. The influence of the composition on the degree of swelling in a physiological environment was demonstrated. The study highlighted improvements in terms of new network flexibility due to the intermolecular chains interactions brought by the introduction of PEBSA in the cryogel structure. We also concluded that the presence of PEBSA in the PVA/PEBSA cryogel network improved the loading capacity of the new system with specific hydrophobic agents, for example essential oils, which (due to their antimicrobial character) can lead to the use of new systems obtained for various applications.
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spelling pubmed-93174702022-07-27 New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization Crețu, Bianca-Elena-Beatrice Nita, Loredana Elena Șerban, Alexandru-Mihail Rusu, Alina Gabriela Doroftei, Florica Chiriac, Aurica P. Nanomaterials (Basel) Article Physical cryogels were obtained using the successive freeze–thaw technique of poly(vinyl alcohol) (PVA)/poly(ethylene brassylate-co-squaric acid) (PEBSA) solutions. The cryogel systems were prepared by using two different molecular weights of PVA and PEBSA with three different ratios between the ethylene brassylate (EB) and squaric acid (SA) comonomers. The presence of interactions, the thermal properties and the morphology were investigated using Fourier Transform Infrared Spectroscopy (FT-IR), thermogravimetry (TGA and DTG) and scanning electron microscopy (SEM), respectively. The influence of the composition on the degree of swelling in a physiological environment was demonstrated. The study highlighted improvements in terms of new network flexibility due to the intermolecular chains interactions brought by the introduction of PEBSA in the cryogel structure. We also concluded that the presence of PEBSA in the PVA/PEBSA cryogel network improved the loading capacity of the new system with specific hydrophobic agents, for example essential oils, which (due to their antimicrobial character) can lead to the use of new systems obtained for various applications. MDPI 2022-07-14 /pmc/articles/PMC9317470/ /pubmed/35889641 http://dx.doi.org/10.3390/nano12142420 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
Crețu, Bianca-Elena-Beatrice
Nita, Loredana Elena
Șerban, Alexandru-Mihail
Rusu, Alina Gabriela
Doroftei, Florica
Chiriac, Aurica P.
New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization
title New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization
title_full New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization
title_fullStr New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization
title_full_unstemmed New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization
title_short New Cryogels Based on Poly(vinyl alcohol) and a Copolymacrolactone System: I-Synthesis and Characterization
title_sort new cryogels based on poly(vinyl alcohol) and a copolymacrolactone system: i-synthesis and characterization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9317470/
https://www.ncbi.nlm.nih.gov/pubmed/35889641
http://dx.doi.org/10.3390/nano12142420
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