Title of article :
Metal-chelating chitin derivatives via reaction of chitosan with nitrilotriacetic acid
Author/Authors :
Vladimir E. Tikhonov، نويسنده , , Lidia A. Radigina، نويسنده , , Ygor A. Yamskov، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 1996
Pages :
9
From page :
33
To page :
41
Abstract :
Chitosan was cross-linked to various extents with nitrilotriacetic acid in the presence of a water-soluble carbodiimide in homogeneous solution, and was then fully N-acetylated. The structure of the nitrilotriacetic acid residues attached to the chitin backbone was determined by acid-base titration. It was shown that the chitin derivatives contained both iminodiacetate and iminomonoacetate residues which form 1:1-type complexes with copper ions. The chitin gels obtained swelled reversibly with water and behaved like ampholytic cross-linked resins in aqueous solutions of acids and bases.
Keywords :
Chitin , Nitrilotriacetic acid , cross-linking , Chitosan , Copper ions
Journal title :
Carbohydrate Research
Serial Year :
1996
Journal title :
Carbohydrate Research
Record number :
961512
Link To Document :
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