Electron-induced reactions, commercial importance

Photochromism is a reversible transformation of a single chemical species between two states, the absorption spectra of which are clearly different, the transition in at least one direction being induced by electromagnetic radiation [1], The widest and most important group of the photochromic system is based on electrocyclic reactions [2,3] a few have been commercially successful (polymer-based photochromic eyewear, novelty items and security printing inks). Several other photochromic systems based on E,Z-isomerization, cycloaddition reaction, electron or proton transfer have potential industrial applications [4],... [Pg.235]

The development of satisfactory adhesive bonding capabilities for rapid high-energy electron or photo-induced polymerization reactions involving free radical intermediates is of prime importance for commercial utility and requires knowledge of the following concepts ... [Pg.364]