Suitable dicarboxylic acids include adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, {HEAD ~ isophthalic acid}, t butyl isophthalic acid, and {TAIL ~ mixtures} thereof 
Suitable dicarboxylic acids include adipic acid , azelaic acid , sebacic acid , dodecanedioic acid , terephthalic acid , { HEAD ~ isophthalic acid } , t butyl isophthalic acid , and { TAIL ~ mixtures } thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH