MATERIAL PRODUCED FROM CROSS-LINKED IONIC CHITIN DERIVATIVE, ITS PREPARATION AND USE

摘要

Problems have occurred using chitin derivatives having surface ionic groups as ion-exchangers. These problems can be overcome by employing a material produced by acylating or treating with an acid the surface of a material composed of a cross-lined ionic chitin derivative. The acylation or acid treatment eliminates the surface ionic groups, for example by converting them to non-ionic groups. The resulting material can also be employed in dialysis and in the separation and purification of glycoproteins.