Synthesis and properties of acylated chitin and chitosan derivatives

Acylating of chitin and chitosan by p-nitrobenzoyl- and myristic chlorides was carried out by the interfacial and homofacial esterification. Chitosan salts with monocarboxylic and hydrochloric acids were obtained and the influence of the method of their isolation from aqueous solutions on their repeated water solubility was studied. The amidation of chitosan salts of carboxylic acids was carried out through the pyrolysis of films. It was found that crosslinked acryloyl- and methacryloyl derivatives of chitosan can be prepared directly from the corresponding salts.