Oligomeric HALS phosphites and HALS phosphonites which are stabilizers and compositions containing them

摘要

The oligomeric compounds of the general formula (I) below are described as stabilizers for protecting organic materials from oxidative, thermal or photoinduced degradation.;In this formula,;L represents a general formula Wherein the oxygen atom in the group L is attached to the phosphorus atom in the structure repeating unit body and R₅Or the carbon atom at the 4-position of the piperidinyl ring is attached to the oxygen atom in the structure repeating unit body; R_OneAnd R₂Are independently hydrogen, C_One-C₂₅Alkyl, C₂-C₂₄Alkenyl, unsubstituted or C_One-C₄Alkyl-substituted C₅-C₈Cycloalkyl, unsubstituted or C_One-C₄Alkyl-substituted phenyl, unsubstituted or C_One-C₄Alkyl-substituted C₅-C₈Cycloalkenyl; C₇-C₉Phenylalkyl or-CH_2-S-R₆And R₃Is hydrogen or methyl, R₄Is hydrogen, C_One-C₂₅Alkyl, C₂-C₂₄Alkenyl, unsubstituted or C_One-C₄Alkyl-substituted C₅-C₈Cycloalkyl, unsubstituted or C_One-C₄Alkyl-substituted phenyl, unsubstituted or C_One-C₄Alkyl-substituted C₅-C₈Cycloalkenyl; C₇-C₉Phenylalkyl;-CH_2-S-R₆,-(CH₂)_PCOOR₇Or-(CH₂)_qOR₈And R₅C_One-C₁₈Alkylene, oxygen, sulfur or C₂-C₁₈Alkylene; Or C₄-C₈Alkenylene or phenylethylene, R₆C_One-C₁₈Alkyl, unsubstituted or C_One-C₄Alkyl-substituted C₅-C₁₂Cycloalkyl, unsubstituted or C_One-C₄Alkyl-substituted phenyl; C₇-C₉Phenylalkyl or-(CH₂)_rCOOR₇And R₇C_One-C₁₈Alkyl, unsubstituted or C_One-C₄Alkyl-substituted C₅-C₁₂Cycloalkyl, unsubstituted or C_One-C₄Alkyl-substituted phenyl; Or C₇-C₉Phenylalkyl, R₈C_One-C₁₅Alkyl, unsubstituted or C_One-C₄Alkyl-substituted phenyl; C₇-C₉Phenylalkyl, C_One-C₂₅Alkane oil, C₃-C₂₅Alkene oil, oxygen in the middle, sulfur or C₂-C₂₅Alkane oil; C₆-C₉Cycloalkylcarbonyl, unsubstituted or C_One-C₁₂Alkyl-substituted benzoyl; Tung oil or furoyl, R₉Is hydrogen or C_One-C₈Alkyl, m is 0 or 1, n is an integer of 2 to 50, p is 0, 1 or 50, p is 0, 1 or 2, q is an integer of 3 to 8, and r Is 1 or 2, and the structural repeating unit weight in the general formula (I), L, R_One, R₂, R₃, R₄,. R₅, R₆, R₇, R₈And R₉In addition, the exponents m, p, q and r are the same or different.