Photochemistry Chemistry 18 Polymers 8 Catalysis 7 Dye 6 Molecular reactions 5 Physical chemistry 5 Dissertations, Academic (Ph.D) 4 Isotopes 4 Physical Chemistry 4 Physical Organic 4 Thesis (Ph.D)-Chemistry 4 Macromolecules 3 Radiation chemistry 3 Stereochemistry 3 Biochemistry 2 Congresses 2 Environmental chemistry 2 Inoisation 2 Ionisation 2 Kinetics 2 Light 2 Organic chemistry 2 Organic compounds 2 Organic photochemistry 2 Pesticides 2 Petroleum 2 Photophysiology 2 Photosynthesis 2 Physical organic 2