Cargando…
TEMPO-Oxidized Cellulose with High Degree of Oxidation
In this paper, water-soluble 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose with a high degree of oxidation was prepared by a two-step process using bamboo dissolving pulp. The first step was to destroy the cellulose crystal I by NaOH/urea solution to obtain cellulose powder with de...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6418784/ https://www.ncbi.nlm.nih.gov/pubmed/30965725 http://dx.doi.org/10.3390/polym9090421 |
_version_ | 1783403805685055488 |
---|---|
author | Tang, Zuwu Li, Wenyan Lin, Xinxing Xiao, He Miao, Qingxian Huang, Liulian Chen, Lihui Wu, Hui |
author_facet | Tang, Zuwu Li, Wenyan Lin, Xinxing Xiao, He Miao, Qingxian Huang, Liulian Chen, Lihui Wu, Hui |
author_sort | Tang, Zuwu |
collection | PubMed |
description | In this paper, water-soluble 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose with a high degree of oxidation was prepared by a two-step process using bamboo dissolving pulp. The first step was to destroy the cellulose crystal I by NaOH/urea solution to obtain cellulose powder with decreased crystallinity. The second step was to oxidize the cellulose powder by TEMPO oxidation. The TEMPO-oxidized cellulose was analyzed by Fourier transform infrared spectroscopy (FTIR), conductimetry, X-ray diffraction (XRD), fiber analyzer, and transmission electron microscopy (TEM). FTIR showed that the hydroxymethyl groups in cellulose chains were converted into carboxyl groups. The degree of oxidation measured by conductimetry titration was as high as 91.0%. The TEMPO-oxidized cellulose was soluble in water for valuable polyelectrolytes and intermediates. |
format | Online Article Text |
id | pubmed-6418784 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64187842019-04-02 TEMPO-Oxidized Cellulose with High Degree of Oxidation Tang, Zuwu Li, Wenyan Lin, Xinxing Xiao, He Miao, Qingxian Huang, Liulian Chen, Lihui Wu, Hui Polymers (Basel) Article In this paper, water-soluble 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose with a high degree of oxidation was prepared by a two-step process using bamboo dissolving pulp. The first step was to destroy the cellulose crystal I by NaOH/urea solution to obtain cellulose powder with decreased crystallinity. The second step was to oxidize the cellulose powder by TEMPO oxidation. The TEMPO-oxidized cellulose was analyzed by Fourier transform infrared spectroscopy (FTIR), conductimetry, X-ray diffraction (XRD), fiber analyzer, and transmission electron microscopy (TEM). FTIR showed that the hydroxymethyl groups in cellulose chains were converted into carboxyl groups. The degree of oxidation measured by conductimetry titration was as high as 91.0%. The TEMPO-oxidized cellulose was soluble in water for valuable polyelectrolytes and intermediates. MDPI 2017-09-06 /pmc/articles/PMC6418784/ /pubmed/30965725 http://dx.doi.org/10.3390/polym9090421 Text en © 2017 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 Tang, Zuwu Li, Wenyan Lin, Xinxing Xiao, He Miao, Qingxian Huang, Liulian Chen, Lihui Wu, Hui TEMPO-Oxidized Cellulose with High Degree of Oxidation |
title | TEMPO-Oxidized Cellulose with High Degree of Oxidation |
title_full | TEMPO-Oxidized Cellulose with High Degree of Oxidation |
title_fullStr | TEMPO-Oxidized Cellulose with High Degree of Oxidation |
title_full_unstemmed | TEMPO-Oxidized Cellulose with High Degree of Oxidation |
title_short | TEMPO-Oxidized Cellulose with High Degree of Oxidation |
title_sort | tempo-oxidized cellulose with high degree of oxidation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6418784/ https://www.ncbi.nlm.nih.gov/pubmed/30965725 http://dx.doi.org/10.3390/polym9090421 |
work_keys_str_mv | AT tangzuwu tempooxidizedcellulosewithhighdegreeofoxidation AT liwenyan tempooxidizedcellulosewithhighdegreeofoxidation AT linxinxing tempooxidizedcellulosewithhighdegreeofoxidation AT xiaohe tempooxidizedcellulosewithhighdegreeofoxidation AT miaoqingxian tempooxidizedcellulosewithhighdegreeofoxidation AT huangliulian tempooxidizedcellulosewithhighdegreeofoxidation AT chenlihui tempooxidizedcellulosewithhighdegreeofoxidation AT wuhui tempooxidizedcellulosewithhighdegreeofoxidation |