| 1. ABSORPTION AND EMISSION PROPERTIES OF ORGANIC RADICALS AND BIRADICALS | 1 | 
   | 1.1. Introduction | 1 | 
   | 1.2. General Characterization of Luminescence from Polyatomic Molecular Systems | 1 | 
   | 1.2.1. Radiative transitions | 2 | 
   | 1.2.2. Processes of Radiationless Conversion | 4 | 
   | 1.3. Electronic Transitions and Absorption Spectra of Aliphatic Radicals | 5 | 
   | 1.3.1. Alkyl Radicals | 5 | 
   | 1.3.2. Allyl, Polyene, and Vinyl Radicals | 11 | 
   | 1.3.3. Alkoxyl Radicals | 15 | 
   | 1.3.4. Radicals of Alcohols and Ethers | 16 | 
   | 1.3.5. Acyl Radicals | 20 | 
   | 1.3.6. Radicals of Esters, Aldehydes, Ketones, Acids, and Anhydrous Acids | 22 | 
   | 1.3.7. Nitrogen-Containing Radicals | 25 | 
   | 1.3.8. Sulfur-Containing Radicals | 32 | 
   | 1.3.9. Peroxide Radicals | 39 | 
   | 1.3.10. Luminescence Parameters of Small Radicals | 45 | 
   | 1.4. Absorption and Emission Properties of Aromatic Radicals | 48 | 
   | 1.4.1. Benzyl Radical | 48 | 
   | 1.4.2. Benzyl-Type Radicals | 52 | 
   | 1.4.3. Hydroradicals | 64 | 
   | 1.4.4. Heteroradicals | 67 | 
   | 1.4.5. Radical ions | 70 | 
   | 1.4.6. Biradicals | 79 | 
   | 1.4.7. Stable Radicals | 89 | 
   | 2. ELEMENTARY PHOTOCHEMICAL PROCESSES | 92 | 
   | 2.1. Photodissociation | 92 | 
   | 2.1.1. Dissociation in Continuum | 92 | 
   | 2.1.2. Quasi-Equilibrium Dissociation | 93 | 
   | 2.1.3. Nonadiabatic Dissociation | 94 | 
   | 2.1.4. Predissociation | 94 | 
   | 2.1.5. Isotope Effect | 96 | 
   | 2.2. Photoinduced Intramolecular Electron Transfer | 97 | 
   | 2.2.1. Charge-Transfer Complex in Ground State | 100 | 
   | 2.2.2. Exciplexes | 104 | 
   | 2.2.3. Photoionization of Radicals | 110 | 
   | 2.2.4. Photoreduction of Radical Cations | 120 | 
   | 2.3. Photorearrangement | 121 | 
   | 2.3.1. Conformational Isomerism | 122 | 
   | 2.3.2. Configurational (cis-trans) Isomerism | 123 | 
   | 2.3.3. Structural (Valence) Isomerism | 124 | 
   | 2.4. Photoaddition | 126 | 
   | 2.5. Transfer of Electronic Energy | 127 | 
   | 2.6. Intennolecular Quenching in Exchange Complex | 130 | 
   | 3. PHOTOCHEMISTRY OF ALIPHATIC RADICALS | 132 | 
   | 3.1. Alkyl Radicals | 132 | 
   | 3.2. Allyl, Polyene, and Vinyl Radicals | 137 | 
   | 3.3. Alkoxy Radicals | 139 | 
   | 3.4. Alcohol and Ester Radicals | 139 | 
   | 3.S. Acyl Radicals | 144 | 
   | 3.6. Radicals of Esters, Aldehydes, Ketones, Acids, and	Acidic Anhydrides | 145 | 
   | 3.7. Nitrogen-Containing Radicals | 150 | 
   | 3.8. Sulfur-Containing Radicals | 155 | 
   | 3.9. Peroxide Radicals | 161 | 
   | 4. PHOTOCHEMISTRY OF AROMATIC RADICALS | 169 | 
   | 4.1. Benzyl-Type Radicals | 169 | 
   | 4.2. Hydroradicals | 171 | 
   | 4.3. Heteroradicals | 173 | 
   | 4.3.1. Phenoxy radicals | 173 | 
   | 4.3.2. Aminyl radicals | 181 | 
   | 4.3.3. Stable nitroxyl radicals | 181 | 
   | 4.4. Biradicals | 182 | 
   | 4.4.1. Carbenes | 182 | 
   | 4.4.2. Nitrenes | 184 | 
   | 4.4.3. Miscellaneous biradicals | 186 | 
   | 4.5. Radical Ions | 188 | 
   | 4.6. Quenching of Excited Species | 201 | 
   | 4.6.1. Quenching of singlet states | 202 | 
   | 4.6.2. Quenching of triplet states | 205 | 
   | 4.6.3. Quenching of excited radicals. | 208 | 
   | 4.6.4. Quenching of the triplet-triplet fluorescence of carbenes | 212 | 
   | 4.7. Conclusion | 213 | 
   | 5. QUANTUM YIELDS OF ORGANIC RADICALS IN SOLID PHASE | 216 | 
   | 6. PHOTORADICAL CHAIN REACTIONS | 230 | 
   | 7. PHOTORADICAL AGING OF POLYMERS | 244 | 
   | 7.1. Introduction | 244 | 
   | 7.2. Pbotoradical Aging of Some Carbo- and Heterochain Polymers | 246 | 
   | 7.2.1. Polyolefins | 246 | 
   | 7.2.2. Polystyrene | 254 | 
   | 7.2.3. Fluorine- and chlorine-containing polymers | 259 | 
   | 7.2.4. Polyacrylates | 262 | 
   | 7.2.5. Poly(vinyl acetate), poly(vinyl alcohol), and poly(vinyl acetals) | 270 | 
   | 7.2.6. Poly(acrylic acid) and poly(acryl amide) | 281 | 
   | 7.2.7. Polyoxides | 284 | 
   | 7.2.8. Polyamides and aliphatic polyurethanes | 286 | 
   | 7.3. Special Features of the Kinetics of Photoradical Reactions in Polymers | 292 | 
   | 7.4. Means of Controlling the Efficiency and Pathway of Photoradical Reactions in Polymers | 295 | 
   | REFERENCES | 302 |