The preparation of mixed 10-undecenoyl/phenylaminocarbonyl or benzoyl deriv
atives of chitosan is described. Several mixed derivatives were prepared us
ing differently substituted aryl isocyanates or benzoyl chlorides. The reac
tivity of the starting polysaccharide was found to be influenced by the ace
tyl content. (C) 2000 Elsevier Science Ltd. All rights reserved.