A number of tetra‐ and pentaalkylpiperidine derivatives of acrylic and methacrylic acid was synthesized, polymerized, and copolymerized with several comonomers as potential UV stabilizers. In addition, by oxidation of some of these polymers and of a copolymer with peroxy compounds, polymers were obtained containing pendant nitroxyl groups. The properties of these polymers with free radical groups are discussed in relation to their spectral data.
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Friedrich Karrer (1980) studied this question.
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