| abstract |
Disclosed is a degassing composite hollow fiber membrane that has good gas permeation performance, suppresses the generation of pinholes, and has excellent solvent resistance and elution properties. In a composite hollow fiber membrane for degassing having a separation layer having a gas permeation function, the separation layer has a fine dispersion structure formed by two or more types of components, which is formed by two or more stages of polymerization. . [Selection figure] None |