POLYMERISABLE MONOMERS AND POLYMERS

摘要

Compounds of formulae (1a) and (1b), wherein R<1> to R<4> may be the same or different and are selected from hydrogen, halogen, optionally substituted alkyl, optionally substituted aryl, nitrile, hydroxy, alkoxy acyloxy and ester; or R<1> and R<2> or R<3> and R<4> together form methylene; X is selected from sulfur, sulfoxide, sulfone and disulfide; Y is selected from sulfur, oxygen, N-H, N-alkyl, N-aryl, acyl and CR<5>R<6> wherein R<5> and R<6> are the same as R<1> to R<4>; and Z<1> and Z<2> are linking functionalites, with the proviso that when R<1> to R<4> are hydrogen and X and Y are sulfur in the compound of formula (1a), then Z<1> is not -(CH2)2- or -CH2-C(=CH2)-CH2-. Compounds of formula (1a) and (1b) are used to produce polymers, copolymers or block polymer to manufacture adhesives, dental compositions or optical lenses.