This solution is then preferably removed from {HEAD ~ the matrix forming material} by vacuum drying {TAIL ~ the layer} at an elevated temperature 
This solution is then preferably removed from { HEAD ~ the matrix forming material } by vacuum drying { TAIL ~ the layer } at an elevated temperature
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH