A new series of aromatic heterocyclic poly(ary1 pyromellitimide-ether)s have been synthesized from various disodium metal bisphenolate salts with an N,N-bis(p-nitro-pheny1)pyromellitimide via aromatic nitro displacement solution polycondensation in dipolar aprotic solvent at elevated temperature. Th
Studies on heat-resistant thermosetting phthalocyanine polymers
✍ Scribed by B. N. Achar; G. M. Fohlen; J. A. Parker
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 391 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
New thermosetting poly(copper phthalocyanine) imide polymers with good toughness, superior thermal stability, chemical inertness, and fire resistance characteristics have been prepared. The studies of polymerization of two bisphthalonitriles were made using metal powder or metallic salt. Infrared, differential scanning calorimetry and thermogravimetric studies were used in determining the optimum conditions for polymerization and in characterizing the polymers produced. These polymers are noteworthy for their high char yield (73-76%) at 800°C in nitrogen atmosphere. These phthalocyanine, imide-thermosetting polymers are expected to be useful in preparing heat-resistant molded articles or laminates.
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