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Organosoluble and light-colored fluorinated polyimides based on 9,9-bis[4-(4-amino-2-trifluoromethylphenoxy)phenyl]fluorene and aromatic dianhydrides

โœ Scribed by Chin-Ping Yang; Hsun-Ching Chiang


Publisher
Springer
Year
2004
Weight
408 KB
Volume
282
Category
Article
ISSN
0340-255X

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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