The presence of {HEAD ~ units} derived from {TAIL ~ polyethylene glycol} within the polymer chain has been found to lead to such intrinsic viscosity reduction within the dye bath 
derived from
The presence of { HEAD ~ units } derived from { TAIL ~ polyethylene glycol } within the polymer chain has been found to lead to such intrinsic viscosity reduction within the dye bath
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH