Thus, {TAIL ~ the addition} of {HEAD ~ diluting powdering agents} is not required, resulting in a purer polymer product 
Thus , { TAIL ~ the addition } of { HEAD ~ diluting powdering agents } is not required , resulting in a purer polymer product
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH