Silylated polyphenylene ether membrane for gas separation

Details Silylated polyphenylene ether membrane for gas separation Silylated polyphenylene ether membrane for gas separation

1985-04-11

1987-08-11

Anderson, Harold D.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

55158, 428159, 4284111, 428447, 525390, 525393, 525534, C08G 6548, B01D 5322

Patent

active

046861319

ABSTRACT:
A membrane for gas separation which comprises a silylated polyphenylene ether is disclosed. Said silylated polyphenylene ether contains a constituting unit containing an organosilane or siloxane group represented by the following formula in at least a part of the repeating unit thereof: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom or a group of the formula --Si(R.sub.5)(R.sub.6)(R.sub.7), wherein R.sub.5, R.sub.6 and R.sub.7 each represents an alkyl group; l and n each represents 0 or an integer from 1 to 3; and m represent an integer of from 1 to 3; with the proviso that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 do not simultaneously represent hydrogen atoms.

REFERENCES:
patent: 3402143 (1968-09-01), Hay
patent: 3417053 (1968-12-01), Chalk
patent: 3668273 (1972-06-01), Krantz
patent: 4551156 (1985-11-01), Li

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