Fiber of {TAIL ~ wholly aromatic copolyamide} from {HEAD ~ 2,6 naphthalene dicarboxylic acid} and 3,4 diaminodiphenylether 
Fiber of { TAIL ~ wholly aromatic copolyamide } from { HEAD ~ 2,6 naphthalene dicarboxylic acid } and 3,4 diaminodiphenylether
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH