Comparative study of aromatic polyimides containing methylene units
✍ Scribed by Ion Sava; Ştefan Chişcă; Maria Brumă; Gabriela Lisa
- Publisher
- Springer
- Year
- 2010
- Tongue
- English
- Weight
- 480 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0170-0839
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📜 SIMILAR VOLUMES
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-methyl
4,4-Diaminodiphenylacetylene ( p-intA) was reacted with 3,3 ,4,4-biphenyltetracarboxylic dianhydride (BPDA), 3,3 ,4,4-benzophenonetetracarboxylic dianhydride (BTDA) and pyromellitic dianhydride (PMDA) in N-methyl-2-pyrrolidone (NMP) to give poly(amic acid) solution of moderate to high viscosity. The