scission

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scis·sion

(sizh'ŏn),
1. A separation, division, or splitting, as in fission.
2. Synonym(s): cleavage (3)
[L. scissio, fr. scindo, pp. scissus, to cleave]

scis·sion

(sizh'ŏn)
1. A separation, division, or splitting, as in fission.
2. Synonym(s): cleavage (2) .
[L. scissio, fr. scindo, pp. scissus, to cleave]

scission

(sĭzh′ŭn) [L. scindere, to split]
Dividing, cutting, or splitting.
References in periodicals archive ?
Hence, we conclude that the irreversible increase in free volume is caused by chain scissions, i.
For very high numbers of chain scission events, the polydispersity index deviates from 2 when certain sites on the polymer chain are favored for degradation.
Such decrease confirms well that the degree of molecular chain scission in the neat PP and its nanocomposite materials decreased.
The viscosity evolution is the result of a competition between PC chains scissions and the grafting of PC chains onto SEBS.
In polymers, formation of microvoids is always caused by scission of covalent bonds between monomers in macromolecules.
This increase is mainly due to the molecular chain scissions in both interphase and amorphous phase, which then crystallize.
However, there are almost four times more carbonyls than chain scissions that shows the existence of chemical events forming carbonyls without chain scission.
The decrease of melting temperature and increase of crystallinity after UV exposure can be easily explained: photodegradation occurs mainly in the amorphous phase, leading to an increase in the surface free energy of the crystals which in turns results in a reduction of melting temperature (13) Also, the chemical reactions that occur during PP photo-degradation lead to chain scissions and carbonyl group formation.
Small molecules produced by chain scissions are prone to recrystallization due to their high mobility, i.
Probably, it is because of chain scissions and local stress relaxation of chains that are susceptible of crystallization.
Chemical reactions that occur during the PP photodegradation can lead to chain scissions and carbonyl group formation.