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Synthesis of Highly Refractive and Transparent Polyimides Derived from 4,4′-[p-Sulfonylbis(phenylenesulfanyl)]diphthalic Anhydride and Various Sulfur-containing Aromatic Diamines

✍ Scribed by Suzuki, Yasuo; Liu, Jin-gang; Nakamura, Yasuhiro; Shibasaki, Yuji; Ando, Shinji; Ueda, Mitsuru

Book ID
111777070
Publisher
Nature Publishing Group
Year
2008
Tongue
English
Weight
345 KB
Volume
40
Category
Article
ISSN
0032-3896

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## Abstract A naphthalene unit‐containing bis(ether anhydride), 4,4′‐(1,5‐naphthylenedioxy)‐diphthalic anhydride, was prepared in three steps starting from the nucleophilic nitro‐displacement reaction of 1,5‐dihydroxynaphthalene and 4‐nitrophthalonitrile in __N__,__N__‐dimethylformamide (DMF) solut