ARYUDENE COPOLYETHER SULFONES. Ⅱ. SYNTHESIS AND CHARACTERIZATION OF SOME NEW COPOLYETHER SULFONES CONTAINING DIBENZYUDENE CYCLOHEXANONE MOIETIES

摘要

New copolyether sulfones containing 2,6-bis(p-oxo-benzylidene)-cyclohexanone and 2,6-bis(o,p-dioxo-benzylidene)cyclohexanone moieties were prepared in the conventional literature manner by condensing the dipotassium salts of 2,6-bis(p-hydroxybenzylidene)cyclohexanone (Ⅲ), 2,6-bis(o,p-dihydroxybenzylidene)-cyclohexanone (Ⅴ), and 2,2-bis(p-hydroxyphenyl)propane (Bisphenol A, Ⅶ) with 4,4′-dichlorodi-phenyl sulfone (Ⅵ), or by condensing the dipotassium salts of Ⅲ and Ⅶ with a new benzylidene cyclohexanone sulfone macromer (Ⅹ). Finally, the polycondensation reaction of sulfonyl bis(p-benzaldehydeoxo-p-phenylene) (Ⅸ) with cyclohexanone leads to an unsaturated copolymer (XVI). The resulting copolyether sulfones were confirmed by IR, ~1H-NMR, viscometry, elemental analysis, thermooptical (TOA), x-ray, and thermogravimetric (TGA) measurements.