A process for producing a carbon molecular sieve membrane by pretreating a polyimide precursor and a carbon molecular sieve membrane

摘要

Preparing a precursor solution containing polyimide; Pre-treating the polyimide by crosslinking or heat treatment; And thermally decomposing the polyimide pretreated in the above; a method of manufacturing a carbon molecular sieve film is disclosed. In the method for producing a carbon molecular sieve provided as an aspect of the present invention, the physical structure stability is improved by pretreating the polyimide before carbonization through thermal decomposition, thereby maintaining the transmittance even after a certain period of time.