RT Journal Article
T1 Cationization of Alpha-Cellulose to Develop New Sustainable Products
A1 Moral, Ana
A1 Aguado, Roberto J.
A1 Ballesteros, María de la Menta
A1 Tijero, Antonio
K1 Cationization
K1 Cellulose
K1 Sustainable
K1 Products
AB 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.
PB Hindawi Publishing Corporation
YR 2015
FD 2015-06-04
LK https://hdl.handle.net/10433/24775
UL https://hdl.handle.net/10433/24775
LA en
NO International Journal of Polymer Science, vol. 2015, Article ID 283963, 9 pages.
NO ECOWAL Group, Molecular Biology and Biochemical Engineering Department, Universidad Pablo de Olavide, ES-41013 Seville, Spain
NO Celulosa y Papel Group, Chemical Engineering Department, Complutense University of Madrid, 28040 Madrid, Spain
DS RIO
RD May 1, 2026