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Novel thermostable polymers from bis-o-aminophenylbenzimidazoles and aromatic tetracarboxylic dianhydrides (1981)

Niume, K. ; Toda, F. ; Uno, K. ; [et al.]

New York : Wiley-Blackwell

Journal of Polymer Science: Polymer Chemistry Edition 19 (1981), S. 1745-1755

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ISSN: 0360-6376

Keywords: Physics ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Novel aromatic hetero polymers, polybenzoylenebenzimidazoquinazolines, were prepared. These polymers were synthesized by the polymerization of bis-o-aminophenylbenzimidazoles with aromatic tetracarboxylic dianhydrides in organic solvents, followed by cyclocondensation of the polyamic acids in polyphosphoric acid. In the resulting polymers the o-phenylenediamine component behaved trifuntionally and the connecting groups were tricyclic fused rings that contained seven-membered rings. These polymers some of which has a ladder-type structure, exhibited excellent thermal properties.

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/pol.1981.170190714

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