Degradation photosensitised

Poly[bis(4-isopropylphenoxy)phosphazene] undergoes photosensitised degradation in solution in the presence of... 

The reader can find a variety of the literature for several chemical classes of pesticides in the review by Burrows et al [3]. As a consequence of only limited direct photodegradation, in order to use solar energy to obtain significant degradation or mineralisation most research is directed towards photosensitised and photocatalytic reactions. 

Of the substances that are present in foods, the most important photosensitisers are chlorophylls, phaeophytins, haem pigments and riboflavin. In vegetable oils, chlorophylls (and their degradation... 

Some items of packaging are potentially dangerous to animals and birds when discarded. Six-pack beer can collars have been especially indicted and photo-degradable polyethylene has been found to be particularly useful in causing rapid fragmentation This can be achieved either by chemical modification of the polymer back-bone (E-CO polymers) [21] or by photosensitised peroxidation by transition metal ions (Chapter 3). The chemistry of the former was discussed in Chapter 12. 

Figure 3 Carbonyl photosensitised degradation of natural rubber...

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