PREPARATION OF CHITOSAN-BASED MICROPOROUS COMPOSITE MATERIAL AND ITS APPLICATIONS

摘要

Microporous glutaraldehyde-crosslinked chitosan sorbents, methods of making and using them, and a generator for the radioisotope 99Mo containing the sorbents.

主权项

1. A sorbent comprising a microporous material comprising chitosan which has been crosslinked with glutaraldehyde in the presence of a catalyst to a glutaraldehyde concentration of about 2 to about 4 wt %, and which is resistant to degradation from exposure to beta and gamma radiation and from exposure to acids wherein the sorbent has been at least partially oxidized after crosslinking by an oxidizer selected from the group consisting of a chlorite, a hypochlorite, a dichromate, and a metal oxide.