In mechanochemical devulcanization of GSBR in the presence of TESPT, homolytic
cleavage of S~S bond of TESPT occurs which in turn produces fragmented devulcanizing agent (FDA) free radical as temperature rises due to mechanical shearing.
scission of the endoperoxide bond followed by the immediate formation of an [[S.
Among homo and heterolytic fermentation, homolytic
fermentation is considered more desirable because of high recovery of dry matter and energy.
Aromatic Amination by the Amino Radical Cation, .
In other conditions free radicals may forms, for example, homolytic
cleavage of either an OH bond or the OO bond in hydrogen peroxide give rise to H + OOH and 2 OH which is hydroxyl radical.
The great benefit of using this plasma technique, especially non-thermal glow-discharge plasma, which is the type of plasma for the present work, is that only the topmost polymeric stratum of material is modified, causing homolytic
bond fission and generating free radicals on the polymer surface by abstracting hydrogen free radicals (1) while maintaining the bulk properties intact.
The reaction path occurs presumably through homolytic
cleavage of benzoyl peroxide to form two benzoyloxy radicals, which further decompose to carbon dioxide and aryl radical [20, 21] (Figure 1).
Free radical can be formed in three ways: (1) By Homolytic
Fission: Radicals can easily be formed when a covalent bond is broken if one electron from each of the pair shared remains with each atom.
29), (34), (36) This high energy of the siloxane bond gives rise to its strong resistance to homolytic
The hydroxyl radical is formed in vivo by high energy irradiation leading to homolytic
cleavage of water or from [H.
The light-induced homolytic
nitrogen-oxygen bond cleavage of N-methoxy nitrogen onium salts produces two transient species, each of which has been shown to damage DNA.
Among their topics are organic vapor-phase deposition, magnetic field effects in the materials and devices, the role of homolytic
reactions in the intrinsic degradation of organic light-emitting diodes, vertical-type organic transistors, mixed molecular heterojunction photovoltaic cells, organic light-emitting diode materials and device architectures for full-color displays and solid-state lighting, and chemical and biological sensors.