homolysis


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Related to homolysis: heterolysis

homolysis

[hə′mäl·ə·sis]
(organic chemistry)
References in periodicals archive ?
Ketones undergo homolysis by either fragmentation or photo cleavage and hydrogen abstraction.
Clearly, to minimize formation of unfavorable free polymers during surface-initiated polymerization, chain initiation has to shift from bicenter mechanisms (one initiator forms two primary active species, such as thermal homolysis of azobisbutyronitrile, A1BN or benzoyl peroxide, BPO) to monocenter counterparts (one initiator forms only one primary active species, such as transition metal-catalyzed atom transfer radical polymerization, ATRP).
Several studies have concluded that polyethylene oxide degrades though the random homolysis of the C--C and C--O bonds in the polymer backbone, via a radical chain mechanism, leading to a reduction in molecular weight (27-30).
2] (sensitized UV) the radiation promotes the homolysis of peroxide generating hydroxyl radicals.
36) present a study on light aging properties of PVC by the carboxylic ester rare earth salt and the organotin, which reveals that radicals S--R generated from homolysis of Sn-S are combined to form R-S-S-R, which is an effective decomposer of hydroperoxides.
The thermal homolysis of the initiator leads to the formation of the primary radicals.