The capping agent may be {HEAD ~ any} of methoxypolyoxyethylene monols, {TAIL ~ polyoxyethylene polyoxypropylene monols}, and mixtures thereof 
of
The capping agent may be { HEAD ~ any } of methoxypolyoxyethylene monols , { TAIL ~ polyoxyethylene polyoxypropylene monols } , and mixtures thereof
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH