polymer stabilizers having low polydispersity.

摘要

A polymerizable composition comprising a) at least one compound of formula (I) (RG) -A- (Stab) (I), wherein (Stab) is a light stabilizer radical selected from the group consisting of hindered amines hindered hydroxyphenyl-s-triazines, hydroxyphenyl-benzotriazoles and hydroxybenzophenones o-; A is a spacer group or a direct bond; and (RG) is a group containing at least one functional ethylenically unsaturated group; b1) a compound of formula (II) YX (II) containing a structural element ** (formula) ** wherein the nitrogen atom is part of a cyclic ring system or is substituted to form a structure acyl, wherein X represents a group having at least one carbon atom and is such that the free radical derived from X is capable of initiating polymerization; or b2) a stable free radical having a structural element ** (formula) ** wherein the nitrogen atom is part of a cyclic ring system or is substituted paraformar an acyclic structure and a free radical source which a radical capable of initiating polymerization is formed; or b3) a compound of formula (III) ** (formula) ** (III) and a catalytically effective amount of a complex catalyst oxidizable transition metal, which is present as an ion of transition metal complex in the state lower oxidation of a redox system; wherein [In] represents the polymerization initiator of a polymerization initiator of formula ** (formula) ** fragment capable of initiating polymerization of monomers or oligomers which initiator po-liemrización is selected from the group consisting of halides C1 C8, C6-C15 aralquilhaluros, C2-C8 haloalkyl ester, sulfonyl chlorides aren, haloalcannitrilos, alpha-haloacrylates and halolactones; p and q represent one; and optionally c) one or more ethylenically unsaturated monomers or oligomers different from those of formula (I).