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Chemical interactions and yellowing in chitosan-treated cellulose

被引：68
作者：
Urreaga, J. Martinez
de la Orden, M. U.
机构：
[1] Univ Politecn Madrid, Dept Ingn Quim Ind & Medio Ambiente, ETSI Ind, E-28006 Madrid, Spain
[2] Univ Complutense Madrid, Dept Quim Organ 1, EU Opt, Madrid 28037, Spain
来源：
EUROPEAN POLYMER JOURNAL | 2006年 / 42卷 / 10期
关键词：
chitosan; cellulose; FTIR; fluorescence; functionalization of polymers;
D O I：
10.1016/j.eurpolymj.2006.05.002
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The chemical interactions between cellulose and chitosan were studied in chitosan-treated celluloses using diffuse reflectance spectroscopic techniques (UV-Vis and FTIR) and fluorescence spectroscopy. The materials were obtained by treating pure cotton cellulose with chitosan in dilute acetic acid solutions of different concentration, and some samples were exposed to different thermal treatments in air. Other related materials, including cellulose treated with benzyl amine and chitosan-treated with acetaldehyde, were also prepared and studied as models for chitosan-treated celluloses. The spectra of the treated celluloses showed new absorption and emission bands that revealed the existence of chemical interactions. These bands were assigned to conjugated imines produced in the reaction of the chitosan amino groups with cellulose carbonyl groups. The reaction is strongly amplified at temperatures above 100 degrees C, causing the intense yellowing of chitosan-treated celluloses. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：2606 / 2616
页数：11
相关论文
共 32 条
[1]   Chitosan and gelatin based edible films: state diagrams, mechanical and permeation properties [J].
Arvanitoyannis, IS ;
Nakayama, A ;
Aiba, S .
CARBOHYDRATE POLYMERS, 1998, 37 (04) :371-382
[2]   Pyrolysis of saccharide tobacco ingredients: a TGA-FTIR investigation [J].
Baker, RR ;
Coburn, S ;
Liu, C ;
Tetteh, J .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2005, 74 (1-2) :171-180
[3]   The mechanism of color generation in poly(ethylene terephthalate)/polyamide blends [J].
Bandi, S ;
Mehta, S ;
Schiraldi, DA .
POLYMER DEGRADATION AND STABILITY, 2005, 88 (02) :341-348
[4]   PVA containing chito-oligosaccharide side chain [J].
Cho, YW ;
Han, SS ;
Ko, SW .
POLYMER, 2000, 41 (06) :2033-2039
[5]   Discoloration of celluloses treated with amino compounds [J].
de la Orden, MU ;
Urreaga, JM .
POLYMER DEGRADATION AND STABILITY, 2006, 91 (04) :886-893
[6]   Discoloration of celluloses treated with polyethylenimines [J].
de la Orden, MU ;
Matías, C ;
Urreaga, JM .
POLYMER DEGRADATION AND STABILITY, 2004, 85 (01) :697-703
[7]   Spectroscopic study of the modification of cellulose with polyethylenimines [J].
de la Orden, MU ;
Matías, MC ;
Urreaga, JM .
JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 92 (04) :2196-2202
[8]   Chitin and chitosan for versatile applications [J].
Dutta, PK ;
Ravikumar, MN ;
Dutta, J .
JOURNAL OF MACROMOLECULAR SCIENCE-POLYMER REVIEWS, 2002, C42 (03) :307-354
[9]   Preparation, characterization, swelling and in vitro drug release behaviour of poly [N-acryloylglycine-chitosan interpolymeric pH and thermally-responsive hydrogels [J].
El-Sherbiny, IM ;
Lins, RJ ;
Abdel-Bary, EM ;
Harding, DRK .
EUROPEAN POLYMER JOURNAL, 2005, 41 (11) :2584-2591
[10]   Furan-polyether-modified chitosans as photosensitive polymer electrolytes [J].
Gandini, A ;
Hariri, S ;
Le Nest, JF .
POLYMER, 2003, 44 (25) :7565-7572
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