Reaction of singlet oxygen with styrene-butadiene copolymer: 1. 9-Methylanthracene photo-sensitized oxidation of styrene-butadiene copolymer |
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| Authors: | Maria Nowakowska |
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| Affiliation: | Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Karasia 3, 30-060 Kraków, Poland |
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| Abstract: | 9-Methylanthracene (9MA) photo-sensitizes the oxidation of styrene-butadiene copolymer (SBR). This effect was explained as being associated mainly with the ability of 9MA to form singlet oxygen. The calculated quantum efficiency of singlet oxygen formation resulting from the quenching by oxygen of electronic excited states of 9MA is high (γΔM = 0·74 ± 0·04). This indicates that 9MA should be a rather efficient photo-sensitizer in photo-oxidation processes. |
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