{HEAD ~ The molecular weights} of {TAIL ~ the nonionic surfactant} are preferably in the range from 500 to 3000 g/mol 
of
{ HEAD ~ The molecular weights } of { TAIL ~ the nonionic surfactant } are preferably in the range from 500 to 3000 g / mol
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH