| abstract |
A modified cellulose for biocompatible dialysis membranes having a structure represented by the formula <IMAGE> wherein cell is unmodified cellulose or chitin, in each case without hydroxyl groups, s=3 in the case of cellulose and s=2 in the case of chitin, R' is CH3 and/or C2H5 and/or C3H7, X denotes specified functional groups, m=0.75 to 2.85, and x=0.005 to 2.10. A process for preparation of the cellulose derivatives is also disclosed. |