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High-pressure synthesis of aliphatic polypyromellitimides via nylon-salt-type monomers composed of aliphatic diamines and pyromellitic acid diesters

✍ Scribed by Yoshihiro Kumagai; Kazuo Itoya; Masa-Aki Kakimoto; Yoshio Imai


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
117 KB
Volume
38
Category
Article
ISSN
0887-624X

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High-pressure synthesis and properties o
✍ Meenakshi Goyal; Tatsuo Inoue; Masa-Aki Kakimoto; Yoshio Imai πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 159 KB πŸ‘ 2 views

Aliphatic polyimides (P-XBTA) having inherent viscosities of 0.4-1.4 dL/ g were readily synthesized by the high-pressure polycondensation of the salt monomers, composed of aliphatic diamines having various methylene chain lengths ( X Γ… 4-12) and 3,3,4,4-benzophenonetetracarboxylic acid (BTA), under