Synthesis and characterization of new aromatic polyamides bearing crown ethers or their dipodal counterparts in the pendant structure. I. Benzo-12-crown-4 and ortho-bis(2-ethoxyethoxy)benzene

1. Calderón, V.
2. García, F.C.
3. De La Peña, J.L.
4. Maya, E.M.
5. García, J.M.