Organosoluble polyimides and copolyimide
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Chin-Ping Yang; Ruei-Shin Chen
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Article
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2000
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John Wiley and Sons
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English
⚖ 144 KB
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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