Cationization of Alpha-Cellulose to Develop New Sustainable Products
Papermaking has been using high quantities of retention agents, mainly cationic substances and organic compounds such as polyamines. The addition of these agents is related to economic and environmental issues, increasing contamination of the effluents. The aim of this work is to develop a cationic...
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doaj-5cfaa655ada548e68e32f86c7de438dd2020-11-24T23:15:10ZengHindawi LimitedInternational Journal of Polymer Science1687-94221687-94302015-01-01201510.1155/2015/283963283963Cationization of Alpha-Cellulose to Develop New Sustainable ProductsAna Moral0Roberto Aguado1Menta Ballesteros2Antonio Tijero3ECOWAL Group, Molecular Biology and Biochemical Engineering Department, Experimental Sciences Faculty, Pablo de Olavide University, Carretera de Utrera km 1, 41013 Seville, SpainECOWAL Group, Molecular Biology and Biochemical Engineering Department, Experimental Sciences Faculty, Pablo de Olavide University, Carretera de Utrera km 1, 41013 Seville, SpainECOWAL Group, Molecular Biology and Biochemical Engineering Department, Experimental Sciences Faculty, Pablo de Olavide University, Carretera de Utrera km 1, 41013 Seville, SpainCelulosa y Papel Group, Chemical Engineering Department, Faculty of Chemistry, Complutense University of Madrid, Avenida Complutense s/n, 28040 Madrid, SpainPapermaking has been using high quantities of retention agents, mainly cationic substances and organic compounds such as polyamines. The addition of these agents is related to economic and environmental issues, increasing contamination of the effluents. The aim of this work is to develop a cationic polymer for papermaking purposes based on the utilization of alpha-cellulose. The cationization of mercerized alpha-cellulose with 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC) is governed by a pseudo-second-order reaction. The initial amorphous fraction of cellulose is reacted with CHPTAC until the equilibrium value of nitrogen substitution is reached. Nitrogen is incorporated as a quaternary ammonium group in the polymer. Also, the kinetic constant increased with decreasing crystallinity index, showing the importance of the previous alkalization stage. The use of modified natural polysaccharides is a sustainable alternative to synthetic, nonbiodegradable polyelectrolytes and thus is desirable with a view to developing new products and new processes.http://dx.doi.org/10.1155/2015/283963 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ana Moral Roberto Aguado Menta Ballesteros Antonio Tijero |
spellingShingle |
Ana Moral Roberto Aguado Menta Ballesteros Antonio Tijero Cationization of Alpha-Cellulose to Develop New Sustainable Products International Journal of Polymer Science |
author_facet |
Ana Moral Roberto Aguado Menta Ballesteros Antonio Tijero |
author_sort |
Ana Moral |
title |
Cationization of Alpha-Cellulose to Develop New Sustainable Products |
title_short |
Cationization of Alpha-Cellulose to Develop New Sustainable Products |
title_full |
Cationization of Alpha-Cellulose to Develop New Sustainable Products |
title_fullStr |
Cationization of Alpha-Cellulose to Develop New Sustainable Products |
title_full_unstemmed |
Cationization of Alpha-Cellulose to Develop New Sustainable Products |
title_sort |
cationization of alpha-cellulose to develop new sustainable products |
publisher |
Hindawi Limited |
series |
International Journal of Polymer Science |
issn |
1687-9422 1687-9430 |
publishDate |
2015-01-01 |
description |
Papermaking has been using high quantities of retention agents, mainly cationic substances and organic compounds such as polyamines. The addition of these agents is related to economic and environmental issues, increasing contamination of the effluents. The aim of this work is to develop a cationic polymer for papermaking purposes based on the utilization of alpha-cellulose. The cationization of mercerized alpha-cellulose with 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC) is governed by a pseudo-second-order reaction. The initial amorphous fraction of cellulose is reacted with CHPTAC until the equilibrium value of nitrogen substitution is reached. Nitrogen is incorporated as a quaternary ammonium group in the polymer. Also, the kinetic constant increased with decreasing crystallinity index, showing the importance of the previous alkalization stage. The use of modified natural polysaccharides is a sustainable alternative to synthetic, nonbiodegradable polyelectrolytes and thus is desirable with a view to developing new products and new processes. |
url |
http://dx.doi.org/10.1155/2015/283963 |
work_keys_str_mv |
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