The degree of hydrophobicity ratio of {HEAD ~ a hydrophobic silica} is indicated by a value of {TAIL ~ methanol wettability} and is preferable to be less than 15 
The degree of hydrophobicity ratio of { HEAD ~ a hydrophobic silica } is indicated by a value of { TAIL ~ methanol wettability } and is preferable to be less than 15
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH