Abstract
2-(2-Hydroxy-5-vinylphenyl)-2H-benzotriazole was grafted onto two types of butadiene polymers, 1,2-polybutadiene and cis-1,4-polybutadiene, using azobisisobutyronitrile as the initiator. 2-(2-Hydroxy-5-vinylphenyl)-2H-benzotriazole was grafted with a conversion of about 20%, and the efficiency exceeding 50%. The polybutadiene grafting efficiency depended on the structure of the polymer. For 1,2-polybutadiene, the grafting efficiency was 56%, while for cis-1,4-polybutadiene it was only 14%. For comparison, 2-(2-hydroxy-5-vinylphenyl)-2H-benzo-triazole was also homopolymerized, not only with AIBN, but also with benzoyl peroxide as the initiator. In the latter case the yields were relatively low.
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Kitayama, M., Vogl, O. Functional Polymers. XVIII. Radical Grafting of 2-(2-Hydroxy-5-vinylphenyl)-2H-benzotriazole onto Polybutadienes. Polym J 14, 537–543 (1982). https://doi.org/10.1295/polymj.14.537
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DOI: https://doi.org/10.1295/polymj.14.537
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