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Title: Siloxane-grafted membranes

Abstract

Composite cellulosic semipermeable membranes are disclosed which are the covalently bonded reaction product of an asymmetric cellulosic semipermeable membrane and a polysiloxane containing reactive functional group. The two reactants chemically bond by ether, ester, amide or acrylate linkages to form a siloxane-grafted cellulosic membrane having superior selectivity and flux stability. Selectivity may be enhanced by wetting the surface with a swelling agent such as water.

Inventors:
;
Publication Date:
Research Org.:
Bend Research Inc
OSTI Identifier:
7073874
Patent Number(s):
US 4877528; A
Application Number:
PPN: US 7-263062
Assignee:
Bend Research, Inc., OR (United States) OAK; EDB-94-115966
DOE Contract Number:  
AC03-84ER80159
Resource Type:
Patent
Resource Relation:
Patent File Date: 27 Oct 1988
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; MEMBRANES; CHEMICAL PREPARATION; CELLULOSE; CHEMICAL BONDS; ORGANIC POLYMERS; PERFORMANCE; SILOXANES; CARBOHYDRATES; ORGANIC COMPOUNDS; ORGANIC SILICON COMPOUNDS; POLYMERS; POLYSACCHARIDES; SACCHARIDES; SYNTHESIS; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes; 400105 - Separation Procedures

Citation Formats

Friesen, D.T., and Obligin, A.S.. Siloxane-grafted membranes. United States: N. p., 1989. Web.
Friesen, D.T., & Obligin, A.S.. Siloxane-grafted membranes. United States.
Friesen, D.T., and Obligin, A.S.. Tue . "Siloxane-grafted membranes". United States.
@article{osti_7073874,
title = {Siloxane-grafted membranes},
author = {Friesen, D.T. and Obligin, A.S.},
abstractNote = {Composite cellulosic semipermeable membranes are disclosed which are the covalently bonded reaction product of an asymmetric cellulosic semipermeable membrane and a polysiloxane containing reactive functional group. The two reactants chemically bond by ether, ester, amide or acrylate linkages to form a siloxane-grafted cellulosic membrane having superior selectivity and flux stability. Selectivity may be enhanced by wetting the surface with a swelling agent such as water.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 31 00:00:00 EST 1989},
month = {Tue Oct 31 00:00:00 EST 1989}
}