Cellulose derivative, process for preparing the same and...

Details Cellulose derivative, process for preparing the same and... Cellulose derivative, process for preparing the same and...

C - Chemistry, Metallurgy

08

B

18/14, 260/217

C08B 11/04 (2006.01) B01D 71/22 (2006.01)

Patent

CA 1280412

ABSTRACT Hydrocarbysulfinylethyl cellulose represented by the formula (I): Image (I) wherein, X may be the same or different and represents hydrogen atom or hydrocarbylsulfinylethyl group represented by the formula (II): Image (II) wherein, R may be the same or different and represents an alkyl group having 1 to 6 carbon atoms or a phenyl group, with the average substitution degree with the hydrocarbylsulfinylethyl group of the formula (II) per glucose unit being at least 0.05, and sulfur dioxide gas permeation membrane comprising said cellulose derivative. This membrane is excellent in sulfur dioxide gas permselectivity.

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