F. Elanbalurot et al., PHOTOOXIDATION OF 3,3'-DIMETHYLBIPHENYLS AND 4,4'-DIMETHYLBIPHENYLS IN NATURAL SEAWATER, International journal of environmental analytical chemistry, 61(1), 1995, pp. 27-34
Photochemical degradation of 3.3'- and 4,4'-dimethylbiphenyls was stud
ied in natural seawater, without photosensitizer and under artificial
UV irradiation. The photooxidation process takes place mainly on benze
ne ring side chains. Photoproduct analysis, carried out by GC-MS, FTIR
and GC-FTIR confirm three successive oxidation stares of methyl subst
ituents : alcohol, aldehyde and carboxylic acids.