Characterization of Symmetrically Gradient Pore Structure of Cuprammonium Cellulose Membrane

Abstract

Most of requirements for hemodialysis hollow fiber membranes depend on their micro pore structure and distribution. Therefore, not only the averaged pore radius but also the pore radius distribution should be noted in the optimal design of hollow fiber hemodialysis membranes. Herein some advantageous characteristics of newly developed cellulose hemodialysis membrane, pore radius distribution pattern of which may be so called “symmetricall gradient structure”, are presented with those of the conventional and well known homogeneous, gradient, and reverse gradient structure membranes.