Copolymers having {TAIL ~ the following compositions} may also be hydrogenated according {HEAD ~ the present invention}: 
Copolymers having { TAIL ~ the following compositions } may also be hydrogenated according { HEAD ~ the present invention } :
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH