Serviços Personalizados
Journal
Artigo
nova página do texto(beta)
Inglês (pdf)
Artigo em XML
Referências do artigo
Tradução automática
Enviar este artigo por emailIndicadores
-
Citado por SciELO -
Acessos
Links relacionados
-
Similares em
SciELO
Compartilhar
Permalink
TIP. Revista especializada en ciencias químico-biológicas
versão impressa ISSN 1405-888X
TIP vol.11 no.1 Ciudad de México Jun. 2008
Artículos originales
Behaviour Of Amphiphilic Polysaccharides in Aqueous Medium
1Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS) affiliated with Joseph Fourier University, BP53, 38041 Grenoble cedex 9 (France). E-mail: marguerite.rinaudo@cermav.cnrs.fr
This paper describes the rheological and thermal behaviour of alkylated chitosan and hyaluronan derivatives and methylcellulose, Their behaviour is characterized by the formation of hydrophobic domains which may be considered as crosslinked points. Then, depending on the thermodynamic conditions (temperature, salt concentration), an aqueous solution transforms to a 3D-physical network formed on the basis of hydrophobic cooperative interactions.
Key Words: Alkylated chitosan; alkylated hyaluronan; amphiphilic polysaccharides; methylcellulose; rheological behaviour
Este trabajo describe el comportamiento reológico y térmico de quitosano y hialuronano alquilados y de metilcelulosa. Dicho comportamiento está caracterizado por la formación de dominios hidrofóbicos que pueden considerarse como puntos de entrecruzamiento. Por tanto, en dependencia de las condiciones termodinámicas (temperatura, salinidad), las disoluciones acuosas pueden transformarse en una red física tridimensional basada en interacciones cooperativas de carácter hidrofóbico.
Palabras Clave: Quitosano alquilado; hialuronano alquilado; polisacáridos anfifílicos; metilcelulosa; comportamiento reológico
References
1. Rinaudo, M. Chitin and Chitosan: properties and applications. Progress in Polymer Science. 31(7), 603-632 (2006). [ Links ]
2. Arguelles-Monal, W., Goycoolea, F.M., Lizardi, J., Peniche, С. & Higuera-Ciapara, I. Chitin and Chito san in gel network systems. In Polymer gels. Fundamentals and Applications (ed. Bohidar, H.B., Dubin, P. & Osada, Y.) ACS Symposium Series, vol. 833, 102-122(2002). [ Links ]
3. Desbrieres, J., Martinez, С. & Rinaudo, M. Hydrophobic derivatives of chitosan: Characterization and rheological behaviour. International Journal of Biological Macromolecules 19(1), 21-28(1996). [ Links ]
4. Rinaudo, M., Auzely, R., Vallin, С. & Mullagaliev, I. Specific Interactions in Modified Chitosan Systems. Biomacromolecules 6(5), 2396-2407 (2005). [ Links ]
5. Rinaudo, M. Characterization and Properties of Some Polysaccharides Used as Biomaterials. In Macromolecular Symposia (World PolymerCongress-MACRO2006) vol. 245/246,549-557(2006). [ Links ]
6. Rinaudo, M. Main properties and current applications of some polysaccharides as biomaterials. Polymer International 57(3), 397-430 (2008). [ Links ]
7. Milas, M., et al. Comparative rheological behavior of hyaluronan from bacterial and animal sources with cross-linked hyaluronan (hylan) in aqueous solution. Biopolymers 59(4), 191-204 (2001). [ Links ]
8. Milas, M. & Rinaudo, M. Characterization and properties of hyaluronic acid (hyaluronan). In Polysaccharides: structural diversity and functional versatility. 2nd ed. (ed. Severian, D.) Chap. 22, pp. 535-549 (Marcel Dekker, New York, 2005). [ Links ]
9. Creuzet, С, Kadi, S., Rinaudo, M. & Auzely-Velty, R. New associative systems based on alkylated hyaluronic acid. Synthesis and aqueous solution properties. Polymer 47(8), 2706-2713 (2006). [ Links ]
10. Rinaudo, M ., Auzely, R., Kadi, S. , Bresin, A. & Kubik, E. New derivatives of hyaluronic acid, their preparation process and their uses. International patent n° WO2007/059890 (2007). [ Links ]
11. Hirrien, M., Chevillard, C, Desbrières, I, Axelos, M.A.V. &Rinaudo, M . Thermogelation of methylcelluloses: new evidence for understanding the gelation mechanism. Polymer 39(25), 6251-6259(1998). [ Links ]
12. Babak, V., Lukina, I., Vikhoreva, G., Desbrières, J. &Rinaudo, M . Interfacial properties of dynamic association between chitin derivatives and surfactants. Colloids and Surfaces, A: Physicochemical and Engineering Aspects 147(1-2),139-148 (1999). [ Links ]
13. Babak, V.G. , Rinaudo, M ., Desbrières, I , Vikhoreva, G.A. & Mchalski, M. -С. The effect of alky 1 chain length of a poly soap on the surface activity of its complexes with cationic surfactants. Mendeleev Communications (4), 149-151 (1997). [ Links ]
14. Nonaka, K.I, Kazama, S., Goto, A., Fukuda, H. & Yoshıoka, H. Spin Probe Study on the Interaction of Chitosan-Derived Polymer Surfactants with Lipid Membrane. Journal of Colloid and Interface Science 246(2), 288-295 (2002). [ Links ]
15. Desbrières, J. , Rinaudo, M . & Chtcheglova, L. Reversible thermothickening of aqueous solutions of polycations from natural origin. Macromolecular Symposia 113, 135-149(1997). [ Links ]
16. Eli, W., Chen, W. & Xue, Q. The association of anionic surfactants with β -суclodextrin. An isothermal titration calorimeter study. Journal of Chemical Thermodynamics 31(10), 1283-1296 (1999). [ Links ]
17. Desbrières, J. , Hirrien, M. &Rinaudo, M . Relation between the Conditions of Modification and the Properties of Cellulose Derivatives: Thermogelation of Methylcellulose. ACS Symposium Series 688, 332-348 (1998). [ Links ]
18. Vigouret, M., Rinaudo, M. & Desbrières, J. Thermogelation of methylcellulosein aqueous-solutions. Journal de Chimie Physique et de Physico-Chimie Biologique 9(5), 858-869 (1996). [ Links ]
19. Hirrien, M. , Desbrières, J. &Rinaudo, M . Physical properties of methylcelluloses in relation with the conditions for cellulose modification. Carbohydrate Polymers 31(4), 243-252 (1996). [ Links ]
Received: May 02, 2008; Accepted: May 27, 2008
This is an open-access article distributed under the terms of the Creative Commons Attribution License
