Kinetics of Some Special Reactions
There are certain reactions in which the activation may be carried out by electromagnetic radiations in visible and ultraviolet region having wavelength approximately between 100 to 1000 nm. These reactions are called photochemical reactions. A photon of radiation, referred to as quantum with energy hv (v being its frequency), is primary unit of radiation. When a photon from high energy electromagnetic radiations such as X- and γ-ray is used, the chemical processes are then called radiolytic reactions. The photochemical reactions are governed by two basic principles, viz. the Grotthus-Draper law and Einstein law of photochemical equivalence.
KeywordsAnionic Polymerization Cationic Polymerization Heterolytic Fission Step Growth Polymerization Chain Growth Polymerization
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