SELECTIVE SEPARATION MEMBRANE

PURPOSE:To provide a gas selective separation membrane having excellent permeability, obtained by copolymerizing polycarbonate with a specific amount of specific bisphenols. CONSTITUTION:One kind of a bisphenol compound shown by formula I , one or more of a bisphenol compound shown by formula II and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KATOU YASUO, KAWADA HIROSHI, TAKAHASHI HIFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a gas selective separation membrane having excellent permeability, obtained by copolymerizing polycarbonate with a specific amount of specific bisphenols. CONSTITUTION:One kind of a bisphenol compound shown by formula I , one or more of a bisphenol compound shown by formula II and polycarbonate are copolymerized to obtain a selective separation membrane. In this case, bisphenol shown by the formula II is adjusted to 30-80mol% on the basis of total bisphenols and, in the formulae, A and B are -O-, -S-, -SO-, -SO2-, -CO- or an 1- 12C divalent org. group, R and R are a same or different group selected from 1-6C monovalent org. group and R and R are a same or different group selected from a hydrogen atom and a methyl group. In addition, the obtained membrane is used with a porous membrane as a support.