| 摘要 |
PURPOSE: A symmetric membrane containing a polysulfonated polymer and a manufacturing method thereof are provided to efficiently eliminate particles by providing a polysulfonated polymer membrane with less than 5% asymmetry, based on the pore size of a core layer and a surface layer of the membrane. CONSTITUTION: A symmetric membrane containing a polysulfonated polymer comprises an average pore size of 0.01-10 micrometers in a core layer of the membrane which is in contact with a supporter. The average pore size of the core layer and an opposingsurface layer are 0.01-10 micrometers. The membrane has less than 5% asymmetry calculated by equation 1. The membrane is made of pores with a sponge form. |
