E. Chiellini et al., LIQUID-CRYSTALLINE SIDE-CHAIN POLYACRYLATES CONTAINING CHIRAL SULFOXIDE SUBSTITUENTS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 266, 1995, pp. 189-196
A series of side-chain polyacrylates containing chiral, optically acti
ve sulfoxide substituents was prepared by the enantioselective oxidati
on of the corresponding prochiral polyacrylates containing prochiral s
ulfide substituents. A chiral sulfonyloxaziridine was used as the oxid
ant. The chemical modification was selective from chemical and stereoc
hemical standpoints. The resulting polymers formed chiral nematic and/
or smectic phases with a slightly decreased propensity to give stable
and persistent mesophases with respect to the parent sulfide containin
g polymers.