Investigation of polyimides containing naphthalene units. II. Model compounds synthesis
1995; Wiley; Volume: 33; Issue: 3 Linguagem: Inglês
10.1002/pola.1995.080330321
ISSN1099-0518
AutoresDanuta Sęk, Andrzej Wanic, Ewa Schab‐Balcerzak,
Tópico(s)Synthesis and Characterization of Heterocyclic Compounds
ResumoAbstract A series of model compounds from 4‐benzoyl‐1,8‐naphthalene anhydride and aromatic amines and diamines has been synthesized. The influence of the reaction conditions on the structure of the compounds obtained has been investigated to explain the high‐temperature polycondensation reaction mechanism. It was found that at high‐temperature polycondensation of 1,8‐naphthalene‐type anhydrides with aromatic amines, isoimides with cis and and trans structures are formed instead of amic acids. The only trans isoimides may isomerize to imide structure. © 1995 John Wiley & Sons, Inc.
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