said {TAIL ~ reaction product} having unreacted carboxylic acid groups which are neutralizable with {HEAD ~ base} to form anionic salt groups 
said { TAIL ~ reaction product } having unreacted carboxylic acid groups which are neutralizable with { HEAD ~ base } to form anionic salt groups
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH