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A study on the effect of spirocyclic structures in the main chain on the physical properties of copolyimides

✍ Scribed by Jun Li; Kazuaki Kudo; Shinsaku Shiraishi


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
63 KB
Volume
21
Category
Article
ISSN
1022-1336

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Effects of addition orders on the proper
✍ Li Ren; Fansen Zeng; Ping Ning; Zhiquan Chen; Tze-Man Ko πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 150 KB πŸ‘ 1 views

A series of fluorine-containing copolyimides were synthesized by three different orders of addition of monomers. The fluorine-containing copolyimides were prepared by the reaction of 4,4Ј-diaminodiphenylmethane (DDM) with 2,2Ј-bis(3,4dicarboxyphenyl) hexafluoropropane dianhydride (6FDA), and pyromel