{TAIL ~ This invention} relates to a pervaporation membrane and to {HEAD ~ an α fluoroacrylic acid polymer} of which the membrane is made 
{ TAIL ~ This invention } relates to a pervaporation membrane and to { HEAD ~ an α fluoroacrylic acid polymer } of which the membrane is made
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH