GAS SEPARATION MEMBRANE

• Main Authors: KAWASHIMA, Toshiyuki, NOMI, Shunsuke, SAKAKIBARA, Yasuyuki, FANG, Jianhua, YU, Jingqiu, GUO, Xiaoxia
• Format: Patent
• Language: English; French; Japanese
• Published: 27.04.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

An objective of the present invention is to provide a gas separation membrane containing a novel sulfonated polyimide and having excellent gas separation performance.　The gas separation membrane includes a sulfonated polyimide represented by general formula (1). (In the formula, Ar is an aryl group, X is greater than 0 and no more than 1, and M+ is a H+ or a metal cation.) L'objectif de la présente invention est de fournir une membrane de séparation de gaz contenant un nouveau polyimide sulfoné et ayant d'excellentes performances de séparation de gaz.　La membrane de séparation de gaz comprend un polyimide sulfoné représenté par la formule générale (1). (Dans la formule, Ar est un groupe aryle, X est supérieur à 0 et inférieur ou égal à 1, et M+ est un cation H+ ou un cation métallique.) 本発明は、新規のスルホン化ポリイミドを含む、優れたガス分離性能を有するガス分離膜を提供することを目的とする。　本発明のガス分離膜は、下記一般式（１）で表されるスルホン化ポリイミドを含む。 （式中、Ａｒはアリール基であり、Ｘは０超１以下であり、Ｍ＋はＨ＋又は金属カチオン、である。）