In this article a new synthesis of 3,3ะ-diaminobiphenyl (3,3ะ-DABP) is described, along with the preparation and characterization of polyamides and polyimides based on it. Reactivity of this monomer was calculated by a molecular simulation study, using ab initio quantum-mechanical methods. Terephtha
โฆ LIBER โฆ
Synthesis and Characterization of Novel Aromatic Polyamides and Polyimides Derived from 2,3-Di(3-aminophenyl)quinoxaline
โ Scribed by Akutsu, Fumihiko; Inoki, Mari; Araki, Kiminori; Kasashima, Yoshio; Naruchi, Kiyoshi; Miura, Masatoshi
- Book ID
- 121740650
- Publisher
- Nature Publishing Group
- Year
- 1997
- Tongue
- English
- Weight
- 771 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0032-3896
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2,2,ะ3,3ะ-Biphenyltetracarboxylic dianhydride (2,2,ะ3,3ะ-BPDA) was prepared by a coupling reaction of dimethyl 3-iodophthalate. The X-ray single-crystal structure determination showed that this dianhydride had a bent and noncopolanar structure, presenting a striking contrast to its isomer, 3,3,ะ4,4ะ