reacting the oligomeric and the thiadiazole succinic anhydride with {HEAD ~ pentamethylene diamine} to produce {TAIL ~ the product} of pentamethylene bis succinimide; and 
to produce
reacting the oligomeric and the thiadiazole succinic anhydride with { HEAD ~ pentamethylene diamine } to produce { TAIL ~ the product } of pentamethylene bis succinimide ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH