Cargando…

IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure

The following article is the first attempt to investigate the supramolecular structure of cellulose with the varied moisture content by the means of Fourier-transform and near infrared spectroscopy techniques. Moreover, authors aimed at the detailed and precise presentation of IR spectra interpretat...

Descripción completa

Detalles Bibliográficos
Autores principales: Cichosz, Stefan, Masek, Anna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602232/
https://www.ncbi.nlm.nih.gov/pubmed/33066574
http://dx.doi.org/10.3390/ma13204573
_version_ 1783603630419476480
author Cichosz, Stefan
Masek, Anna
author_facet Cichosz, Stefan
Masek, Anna
author_sort Cichosz, Stefan
collection PubMed
description The following article is the first attempt to investigate the supramolecular structure of cellulose with the varied moisture content by the means of Fourier-transform and near infrared spectroscopy techniques. Moreover, authors aimed at the detailed and precise presentation of IR spectra interpretation approach in order to create a reliable guideline for other researchers. On the basis of obtained data, factors indicating biopolymer crystallinity and development of hydrogen interactions were calculated and the peaks representing hydrogen bonding (7500–6000 cm(−1), 3700–3000 cm(−1), and 1750–1550 cm(−1)) were resolved using the Gaussian distribution function. Then, the deconvoluted signals have been assigned to the specific interactions occurring at the supramolecular level and the hydrogen bond length, as well bonding-energy were established. Furthermore, not only was the water molecules adsorption observed, but also the possibility of the 3OH⋯O5 intramolecular hydrogen bond shortening in the wet state was found-from (27,786 ± 2) 10(−5) nm to (27,770 ± 5) 10(−5) nm. Additionally, it was proposed that some deconvoluted signals from the region of 3000–2750 cm(−1) might be assigned to the hydroxyl group-incorporated hydrogen bonding, which is, undoubtedly, a scientific novelty as the peak was not resolved before.
format Online
Article
Text
id pubmed-7602232
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-76022322020-11-01 IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure Cichosz, Stefan Masek, Anna Materials (Basel) Article The following article is the first attempt to investigate the supramolecular structure of cellulose with the varied moisture content by the means of Fourier-transform and near infrared spectroscopy techniques. Moreover, authors aimed at the detailed and precise presentation of IR spectra interpretation approach in order to create a reliable guideline for other researchers. On the basis of obtained data, factors indicating biopolymer crystallinity and development of hydrogen interactions were calculated and the peaks representing hydrogen bonding (7500–6000 cm(−1), 3700–3000 cm(−1), and 1750–1550 cm(−1)) were resolved using the Gaussian distribution function. Then, the deconvoluted signals have been assigned to the specific interactions occurring at the supramolecular level and the hydrogen bond length, as well bonding-energy were established. Furthermore, not only was the water molecules adsorption observed, but also the possibility of the 3OH⋯O5 intramolecular hydrogen bond shortening in the wet state was found-from (27,786 ± 2) 10(−5) nm to (27,770 ± 5) 10(−5) nm. Additionally, it was proposed that some deconvoluted signals from the region of 3000–2750 cm(−1) might be assigned to the hydroxyl group-incorporated hydrogen bonding, which is, undoubtedly, a scientific novelty as the peak was not resolved before. MDPI 2020-10-14 /pmc/articles/PMC7602232/ /pubmed/33066574 http://dx.doi.org/10.3390/ma13204573 Text en © 2020 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
Cichosz, Stefan
Masek, Anna
IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure
title IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure
title_full IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure
title_fullStr IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure
title_full_unstemmed IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure
title_short IR Study on Cellulose with the Varied Moisture Contents: Insight into the Supramolecular Structure
title_sort ir study on cellulose with the varied moisture contents: insight into the supramolecular structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602232/
https://www.ncbi.nlm.nih.gov/pubmed/33066574
http://dx.doi.org/10.3390/ma13204573
work_keys_str_mv AT cichoszstefan irstudyoncellulosewiththevariedmoisturecontentsinsightintothesupramolecularstructure
AT masekanna irstudyoncellulosewiththevariedmoisturecontentsinsightintothesupramolecularstructure