One use of {HEAD ~ the asymmetric membranes} of this invention as semipermeable membranes is {TAIL ~ a reverse osmosis procedure} for liquids as illustrated in FIG 2 
One use of { HEAD ~ the asymmetric membranes } of this invention as semipermeable membranes is { TAIL ~ a reverse osmosis procedure } for liquids as illustrated in FIG 2
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH