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Composite perfluorohydrocarbon membranes, their preparation and use

Patent ·
OSTI ID:1349734
;

Composite porous hydrophobic membranes are prepared by forming a perfluorohydrocarbon layer on the surface of a preformed porous polymeric substrate. The substrate can be formed from poly (aryl ether ketone) and a perfluorohydrocarbon layer can be chemically grafted to the surface of the substrate. The membranes can be utilized for a broad range of fluid separations, such as microfiltration, nanofiltration, ultrafiltration as membrane contactors for membrane distillation and for degassing and dewatering of fluids. The membranes can further contain a dense ultra-thin perfluorohydrocarbon layer superimposed on the porous poly (aryl ether ketone) substrate and can be utilized as membrane contactors or as gas separation. membranes for natural gas treatment and gas dehydration.

Research Organization:
PoroGen Corporation, Woburn, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-05ER84250
Assignee:
PoroGen Corporation (Woburn, MA)
Patent Number(s):
9,610,547
Application Number:
12/979,565
OSTI ID:
1349734
Country of Publication:
United States
Language:
English

References (6)

Surface functionalization of PEEK films using photochemical routes journal January 2001
Surface modification of poly(aryl ether ether ketone) (PEEK) film by covalent coupling of amines and amino acids through a spacer arm journal December 1997
Modifications of polyether-etherketone surface after 193 nm and 248 nm excimer laser radiation journal January 1999
Microporous membranes based on poly(ether ether ketone) via thermally-induced phase separation journal November 1995
Gas and vapor transport properties of amorphous perfluorinated copolymer membranes based on 2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole/tetrafluoroethylene journal January 1996
Hollow fiber microfiltration membranes from poly(ether ether ketone) (PEEK) journal April 1999

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