High-pressure synthesis and properties o
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Meenakshi Goyal; Tatsuo Inoue; Masa-Aki Kakimoto; Yoshio Imai
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Article
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1998
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John Wiley and Sons
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English
⚖ 159 KB
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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 Å 4-12) and 3,3,4,4-benzophenonetetracarboxylic acid (BTA), under