Gas separation membrane, gas separation module, gas separation device, gas separation method, composition for gas separation layer formation, method for producing gas separation membrane, polyimide compound and diamine monomer

摘要

Provided are a gas separation membrane, a gas separation module, a gas separation apparatus, and a gas separation method which are excellent in gas permeability and separation selectivity and excellent in plasticization resistance. A composition for forming a gas separation layer suitable for forming a gas separation layer of the gas separation membrane and a method for producing a gas separation membrane using the composition are provided. A polyimide compound suitable as a raw material for the gas separation layer of the gas separation membrane and a diamine monomer suitable for synthesizing the polyimide compound are provided. A gas separation membrane having a gas separation layer contains a crosslinked polyimide compound. In the gas separation membrane, the gas separation module, the gas separation apparatus, and the gas separation method using the gas separation membrane, the crosslinked polyimide compound has a specific crosslinked structure portion. A composition for forming a gas separation layer suitable for forming a gas separation layer of the gas separation membrane, a method for producing a gas separation membrane using the composition, and a polyimide suitable as a raw material for the gas separation layer of the gas separation membrane Compounds and diamine monomers suitable for synthesizing the polyimide compounds are provided.