A highly fluorinated monomer, 1,3-bis(1,1,1,3,3,3-hexafluoro-2-pentafluorophenylmethoxy-2-propyl)benzene (12F-FBE), is obtained by reaction of the sodium salt of 1,3-bis(1,1,1,3,3,3-hexafluoro-2-hydroxy-2-propyl)benzene with pentafluorobenzyl bromide. 12F-FBE reacts with diphenols to give soluble, h
Synthesis and characterization of fluorine-containing aromatic polyethers from tetrafluoroisophthalonitrile and bisphenols
β Scribed by Masa-Aki Shimizu; Masa-Aki Kakimoto; Yoshio Imai
- Book ID
- 105336723
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 414 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0887-624X
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A facile method for the synthesis of high-molecular-weight aromatic polyethers was developed with the use of cesium fluoride as a base. The high-temperature solution polycondensation between bisphenols and activated aromatic dihalides with cesium fluoride in polar aprotic solvents readily afforded a