Chitosan blends with

Associations can be of physical nature too. Chitosan blends with hydrophilic polymers including polyvinylalcohol, polyethyleneoxide and poly-vinylpyrrohdone, were investigated as candidates for oral gingival delivery systems. Chitosan blends were superior to chitosan alone in terms of comfort, ease of processing, film quality, and flexibihty [325]. 

Cao, W. Wang, A. Jing, D. Gong, Y Zhao, N. and Zhang, X. Novel biodegradable films and scaffolds of chitosan blended with poly(3-hydroxybulyrate). J. Biomater. Sci. Polym. Edn. 2005,16(11), 1379-1394. 

Khoo, C.G.L., Frantzich, S., Rosinski, A., Sjostrom, M., and Hoogstraate, J. 2003. Oral gingival delivery systems from chitosan blends with hydrophilic polymers. Eur. J. Pharm. Biopharm. 55 47-56. 

Significant improvement of functional properties has been reported for fibers obtained from blends of chitin with various natural polymers such as cellulose, silk fibroin and glycosaminoglycans [48, 50, 51]. Fibers of chitosan blended with alginate, collagen and gelatin have been evaluated for wound dressing and artificial skin applications [52, 53, 108, 136]. 

ThQagan, J., Gopalakrishnan, S., Kannadasan, T. A comparative study on adsorption of copper (II) ions in aqueous solution by (A) chitosan blended with cellulose... 

Other blends such as polyhydroxyalkanoates (PHA) with cellulose acetate (208), PHA with polycaprolactone (209), poly(lactic acid) with poly(ethylene glycol) (210), chitosan and cellulose (211), poly(lactic acid) with inorganic fillers (212), and PHA and aUphatic polyesters with inorganics (213) are receiving attention. The different blending compositions seem to be limited only by the number of polymers available and the compatibiUty of the components. The latter blends, with all natural or biodegradable components, appear to afford the best approach for future research as property balance and biodegradabihty is attempted. Starch and additives have been evaluated ia detail from the perspective of stmcture and compatibiUty with starch (214). 

Nakatsuka S, Andrady LA. Permeability of vitamin-B-12 in chitosan membranes effect of crosslinking and blending with poly(vinyl alcohol) on permeability. ] Appl Polym Sci 1992 44 7-28. 

Parida U.K., Nayak A.K., Binhani B.K., Nayak P.L. S)mthesis and characterization of chitosan-polyvinyl alcohol blended with cloisite 30B for controlled release of the anticancer drug curcumin. Journal of Biomaterials and Nanobiotechnology. 2011 2 414-425. 

Fernandez-Saiz, R, Ocio, M. J., and Lagaron, J. M. Antibacterial chitosan-based blends with ethylenevi-nyl alcohol copolymer. Carbohydr. Polym. 80 (2010) 874-884. 

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