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Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution

Cellulose and chitosan solutions were prepared in 60% LiBr and mixed with a different weight ratio. The washing and drying of the prepared cellulose–chitosan composite films were performed under identical conditions. The color of the liquefied mixtures and films was initially transparent but changed...

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Detalles Bibliográficos
Autores principales: Yang, Jiwook, Kwon, Gu-Joong, Hwang, Kyojung, Kim, Dae-Young
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403986/
https://www.ncbi.nlm.nih.gov/pubmed/30960983
http://dx.doi.org/10.3390/polym10101058
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author Yang, Jiwook
Kwon, Gu-Joong
Hwang, Kyojung
Kim, Dae-Young
author_facet Yang, Jiwook
Kwon, Gu-Joong
Hwang, Kyojung
Kim, Dae-Young
author_sort Yang, Jiwook
collection PubMed
description Cellulose and chitosan solutions were prepared in 60% LiBr and mixed with a different weight ratio. The washing and drying of the prepared cellulose–chitosan composite films were performed under identical conditions. The color of the liquefied mixtures and films was initially transparent but changed from colorless to brownish yellow depending on the ratio of chitosan in the solution. The cross section observed in the SEM results indicated that the film developed with a higher ratio of chitosan was more robust and possessed greater antibacterial properties. FT-IR analysis of the films showed that hydrogen bonds between cellulose and chitosan in composite films were successfully achieved and retained excellent mechanical properties. The proper ratio of chitosan in the cellulose solution can increase the tensile strength and improve the elongation of the films; however, the E-modulus property was consistently reduced. The antibacterial activity and mechanical properties of the films were greatly improved as the amount of chitosan in the film increased.
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spelling pubmed-64039862019-04-02 Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution Yang, Jiwook Kwon, Gu-Joong Hwang, Kyojung Kim, Dae-Young Polymers (Basel) Article Cellulose and chitosan solutions were prepared in 60% LiBr and mixed with a different weight ratio. The washing and drying of the prepared cellulose–chitosan composite films were performed under identical conditions. The color of the liquefied mixtures and films was initially transparent but changed from colorless to brownish yellow depending on the ratio of chitosan in the solution. The cross section observed in the SEM results indicated that the film developed with a higher ratio of chitosan was more robust and possessed greater antibacterial properties. FT-IR analysis of the films showed that hydrogen bonds between cellulose and chitosan in composite films were successfully achieved and retained excellent mechanical properties. The proper ratio of chitosan in the cellulose solution can increase the tensile strength and improve the elongation of the films; however, the E-modulus property was consistently reduced. The antibacterial activity and mechanical properties of the films were greatly improved as the amount of chitosan in the film increased. MDPI 2018-09-23 /pmc/articles/PMC6403986/ /pubmed/30960983 http://dx.doi.org/10.3390/polym10101058 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Jiwook
Kwon, Gu-Joong
Hwang, Kyojung
Kim, Dae-Young
Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution
title Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution
title_full Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution
title_fullStr Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution
title_full_unstemmed Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution
title_short Cellulose–Chitosan Antibacterial Composite Films Prepared from LiBr Solution
title_sort cellulose–chitosan antibacterial composite films prepared from libr solution
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403986/
https://www.ncbi.nlm.nih.gov/pubmed/30960983
http://dx.doi.org/10.3390/polym10101058
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