Macrocyclic aromatic polysulfones and sulfide-sulfones: synthesis and structural characterisation of molecular pentagons and rectangles.
Cyclo-condensation of arylenedithiols with bis(4-chlorophenylenesulfone)s under pseudo-high-dilution conditions affords macrocyclic aromatic sulfide-sulfones which are readily oxidised to all-sulfone-linked macrocycles. The cyclic pentamer of poly(1,4-phenylenesulfone) and cyclic dimer of poly(1,4-phenylenesulfonyl-4,4'-biphenylenesulfone) have been isolated and characterised.
Ben-Haida
Abderrazak
A
Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9P, UK.
Colquhoun
Howard M
HM
Hodge
Philip
P
Raftery
James
J
White
Andrew J P
AJ
Williams
David J
DJ