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Dissociation in a polymerization model of homochirality

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A fully self-contained model of homochirality is presented that contains the effects of both polymerization and dissociation. The dissociation fragments are assumed to replenish the substrate from which new monomers can grow and undergo new polymerization. The mean length of isotactic polymers is found to grow slowly with the normalized total number of corresponding building blocks. Alternatively, if one assumes that the dissociation fragments themselves can polymerize further, then this corresponds to a strong source of short polymers, and an unrealistically short average length of only 3. By contrast, without dissociation, isotactic polymers becomes infinitely long.

OriginalsprogEngelsk
TidsskriftOrigins of Life and Evolution of the Biosphere
Vol/bind35
Udgave nummer6
Sider (fra-til)507-521
Antal sider15
ISSN0169-6149
DOI
StatusUdgivet - 1 dec. 2005

ID: 208855259