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Synthesis and investigation of poly(benzimidazole imides) based on new di-imidodicarboxylic acids

โœ Scribed by V.V. Korshak; D.M. Mognonov; B.B. Tanganov; A.I. Batotsyrenova; V.V. Nikiteyev; K.Ye. Batlayev; A.A. Izyneyev


Book ID
118246832
Publisher
Elsevier Science
Year
1980
Weight
414 KB
Volume
22
Category
Article
ISSN
0032-3950

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โœ Sheng-Huei Hsiao; Chin-Tang Li ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 219 KB ๐Ÿ‘ 2 views

A novel bis(ether anhydride) monomer, 9,9-bis [4-(3,4-dicarboxyphenoxy)phenyl]fluorene dianhydride (4), was synthesized from the nitrodisplacement of 4-nitrophthalonitrile by the bisphenoxide ion of 9,9-bis(4-hydroxyphenyl)fluorene (1), followed by alkaline hydrolysis of the intermediate tetranitril