Radical Production by Radiation

The following methods including redox systems are well known and widely used in the generation of radicals. First, some methods of radical generation are briefly discussed. 

A covalent bond is generally cleaved to its radical fragments at temperatures higher than 800 °C. Covalent bonds that can be cleaved at 150°C are limited to weak bonds whose dissociation energies are under 30-40 kcal/mol [1]. Azo compounds, peroxides, nitrite esters, ester of A-hydroxy-2-thiopyridone etc. fit into this group 

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