Siloxane-grafted membranes
Patent
·
OSTI ID:7073874
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.
- Research Organization:
- Bend Research Inc
- DOE Contract Number:
- AC03-84ER80159
- Assignee:
- Bend Research, Inc., OR (United States)
- Patent Number(s):
- A; US 4877528
- Application Number:
- PPN: US 7-263062
- OSTI ID:
- 7073874
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
CARBOHYDRATES
CELLULOSE
CHEMICAL BONDS
CHEMICAL PREPARATION
MEMBRANES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
PERFORMANCE
POLYMERS
POLYSACCHARIDES
SACCHARIDES
SILOXANES
SYNTHESIS
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
CARBOHYDRATES
CELLULOSE
CHEMICAL BONDS
CHEMICAL PREPARATION
MEMBRANES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
PERFORMANCE
POLYMERS
POLYSACCHARIDES
SACCHARIDES
SILOXANES
SYNTHESIS