E. Butuc et al., SYNTHESIS AND PROPERTIES OF NEW HOMO AND COPOLYETHER SULFONES CONTAINING CYCLOALIPHATIC CARDO GROUPS, Journal of macromolecular science. Pure and applied chemistry, A35(1), 1998, pp. 175-182
New homo and copolyether sulfones containing cycloaliphatic cardo grou
ps were prepared in the conventional literature manner by condensing t
he dipotassium salts of 1,1-bis(p-hydroxy-phenyl)cyclopentane (I a), 1
,1-bis(p-hydroxyphenyl)cyclohexane (I b), 1,1-bis(p-hydroxyphenyl)cycl
oheptane (I c), and 2,2-bis(p-hydroxy-phenyl)-propane (Bisphenol A, II
I) with 4,4'-sulfonyl bis(4-chloro-phenyl) (II). The polymers were cha
racterized by IR H-1-NMR spectroscopy, elemental analysis, viscometry,
solubility tests, softening points, DSC and TGA measurements.