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Synthesis of aliphatic polyimides containing adamantyl units

✍ Scribed by Hiroshi Seino; Amane Mochizuki; Mitsuru Ueda

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 160 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19990915)37:18<3584::aid-pola5>3.0.co;2-r

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✦ Synopsis

Aliphatic polyimides containing adamantyl units (APIs) were prepared by the poly(addition/condensation) of a dianhydride bicyclo[2.2.2]octane-2,3,5,6-tetracarboxylic 2,3 : 5,6-dianhydride with a rigid diamine, 1,3-diaminoadamantane or 3,3Јdiamino-1,1Ј-biadamantyl, and a flexible diamine, 4,4Ј-methylenebis(cyclohexylamine) or 1,4-cyclohexanediamine. One-step polymerizations were conducted at 80 -200°C in m-cresol, producing APIs with inherent viscosities up to 0.53 dL g Ϫ1 . These APIs are soluble in haloalkanes, m-cresol, and sulfuric acid and show high thermal stability and excellent transparency.

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