| Poly(imino-1,4-phenyleneiminocarbonyl-1,4-phenylenecarbonylimino-1,4-phenyleneiminocarbonyl-1,4-phenylenecarbonylimino-1,4-phenyleneiminocarbonyl-1,4-phenylenecarbonylimino-1,4-phenyleneiminocarbonyl-1,4-phenylenecarbonylimino-1,6-hexanediyliminocarbonyl- |
|