| 摘要 |
Homopolymers and copolymers of vinyl ethers of the formula I <IMAGE> (I) in which R is hydrogen or methyl and R1 is hydrogen C1-C8-alkyl, benzyl, allyl or C1-C2-acyl, are effective stabilizers for plastics, especially to protect them against photochemical degradation. The monomeric vinyl ethers of the formula I are novel compounds, which can be prepared from the corresponding piperidinols by vinylation by means of acetylene or by transvinylation by means of vinyl ethers or vinyl esters.
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