Mechanisms of antioxidant action: the role of 2-hydroxybenzophenones in photo-oxidizing media |
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| Authors: | K.B. Chakraborty G. Scott |
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| Affiliation: | Department of Chemistry, University of Aston in Birmingham, Gosta Green, Birmingham B4 7ET, England |
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| Abstract: | A study of the photo-stability of 2-hydroxy-4-octyloxybenzophenone (HOBP) in the presence of possible photo-sensitizers present in polymers shows that this u.v. stabilizer is readily destroyed by them in the presence of light. HOBP is destroyed by carbonyl compounds and therefore appears to interfere with their photolysis at least partly by a sacrificial quenching process. |
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