Synthesis and characterization of new aromatic polyamides bearing crown ethers and acyclic ethylene oxide units in the pendant structure. III. Benzo-18-crown-6 systems and their open-chain counterparts

1. Calderón, V.
2. Schwarz, G.
3. García, F.
4. Tapia, M.J.
5. Valente, A.J.M.
6. Burrows, H.D.
7. García, J.M.