OXIDATION-RESISTANT HYDROPHILIZED POLYSULPHONE-BASED HOLLOW-FIBER MEMBRANE AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a polysulphone-based polymer hollow-fiber membrane which retains a sufficient capability of controlling adsorption of proteins, without losing hydrophilicity even after sterilization with a strong oxidizing agent, and has excellent mechanical strength. SOLUTION: The hollow-fiber membrane is based on a polysulphone-based polymer and a hydrophilic polymer and has a residual rate of the hydrophilic polymer of 0.8-9.8 wt.% to the total amount of polymers after an oxidation treatment with a strong oxidizing agent. COPYRIGHT: (C)2008,JPO&INPIT