Synthesis and Properties of New Aromatic Polyimides Based on 2,6-Bis(4-aminophenoxy)naphthalene and Aromatic Tetracarboxylic Dianhydrides
โ Scribed by Chin-Ping Yang; Sheng-Huei Hsiao; Chun-Cheng Yang
- Book ID
- 111596029
- Publisher
- Springer
- Year
- 2004
- Tongue
- English
- Weight
- 243 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1022-9760
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Optically active 2,2ะ-bis(2-trifluoro-4-aminophenoxy)-1,1ะ-binaphthyl and its corresponding racemate were prepared by a nucleophilic substitution reaction of 1,1ะ-bi-2-naphthol with 2-chloro-5-nitrotrifluorotoluene and subsequently by the reduction of the resulting dinitro compounds. A series of opt
A series of new soluble aromatic polyimides with inherent viscosities of 0.65-1.12 dL/g were synthesized from 1,3-bis(4-aminophenyl)-4,5-diphenylimidazolin-2-one and various aromatic tetracarboxylic dianhydrides by the conventional twostep procedure that included ring-opening polyaddition and subseq
1,1-Bis[4-(4-aminophenoxy)phenyl]-1-phenylethane (BAPPE) was prepared through nucleophilic substitution reaction of 1,1-bis(4-hydroxyphenyl)-1-phenylethane and p-chloronitrobenzene in the presence of K 2 CO 3 in N,N-dimethylformamide, followed by catalytic reduction with hydrazine and Pd/C. Novel or
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