| DMA | N,N-dimethylacetamide |
| DMF | N,N-dimethylformamide |
| DMSO | dimethyl sulfoxide |
| DSC | differential scanning calorimetry |
| EDG | electron-donating group |
| EWG | electron-withdrawing group |
| ηinh | inherent viscosity |
| IPC | isophthaloyl dichloride |
| Mn, Mw | number-average and weight-average molecular masses |
| MPD | m-phenylenediamine |
| NMP | N-methyl-2-pyrrolidone |
| ODA | 3,4-diaminodiphenyl ether |
| ODA/PPTA | 3,4-diaminodiphenyl ether/poly(p-phenylene terephthalamide) |
| MPIA | poly(m-phenylene isophthalamide) |
| POSS | polyhedral oligomeric silsesquioxane |
| PPD | p-phenylenediamine |
| PPTA | poly(p-phenylene terephthalamide) |
| Tg | glass-transition temperature |
| Tm | melting temperature |
| TEG | tri(ethylene glycol) monomethyl ether |
| THF | tetrahydrofuran |
| TPA | triphenylamine |
| TPPA | N,N,N′,N′-tetraphenyl-1,4-phenylenediamine |
| TPC | terephthaloyl dichloride |
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