homolysis


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Related to homolysis: heterolysis

ho·mol·y·sis

(hō-mol'i-sis),
Lysis of red blood cells by a homolysin and complement.
Farlex Partner Medical Dictionary © Farlex 2012

ho·mol·y·sis

(hŏ-mol'i-sis)
Lysis of red blood cells by a homolysin and complement.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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References in periodicals archive ?
In contrast, Oppenlander and Xu [43] obtained different results using a flow photoreactor with UV irradiation at 172 nm, in which the HO* radicals were produced by water homolysis. They obtained a rate of reaction that was essentially independent of the temperature for the decolorisation of RhB; that is, basically the activation energy was zero.
(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.
A model study in hexadecane showed that the mechanism involves the selectivity of TEMPO for radical termination with carbon-centered radicals formed after peroxide homolysis and propagation steps before peroxide-initiated crosslinking.
Peroxide yields, defined as the moles of VTEOS grafted per mole of cumyloxy radicals generated by DCP homolysis, varied from a low of 22 grafts per radical at a peroxide loading of 0.15 wt%, to a high of 66 when just 0.015 wt% of initiator was employed.
Simplified treatments of the initiation process attribute macroradical formation to hydrogen atom abstraction by the oxygen-centred radicals derived from peroxide homolysis. These electrophilic species [19] prefer hydrogen atom abstraction to addition to electron deficient olefins, whereas the opposite tendencies are observed for the nucleophilic methyl radicals derived from cumyloxy radical fragmentation [20, 21].
Since the rate constant for DCP homolysis is known, the application of this expression to VTEOS conversion profiles requires estimates of three parameters ([k.sub.tr], [k.sub.g], and f/[k.sub.t]).
The mechanism for metal cluster formation probably involves the homolysis of Me-S bonds, with formation of zero-valence metal atoms and sulfur radicals, SR.
According to Grassie and Farish (14), mechanism of the thermal degradation of polystyrene consists of chain homolysis and disproportionation below 300 [degrees] C.