Preparation and properties of N-phenylcarbamoyl-pendant polyamides from 3,5-diaminobenzanilide and various aromatic and aliphatic dicarboxylic acids
β Scribed by Masa-Aki Kakimoto; Munirathina Padmanaban; Masaru Yoneyama; Yoshio Imai
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 227 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0887-624X
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## Abstract New aromatic polyamides (aramids) having inherent viscosities of 0.5β2.6 dL/g were prepared by the direct polycondensation of 4,4β²βdiaminotriphenylamine with various aromatic dicarboxylic acids in __N__βmethylβ2βpyrrolidone using triphenyl phosphite and pyridine as condensing agents. Th
2,6-Bis(4-aminophenoxy)naphthalene (2,6-BAPON) was synthesized in two steps from the condensation of 2,6-dihydroxynaphthalene with p-chloronitrobenzene in the presence of potassium carbonate, giving 2,6-bis(4-nitrophenoxy)naphthalene, followed by hydrazine hydrate/Pd-C reduction. A series of new pol