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Issue 12, 2018
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The downside of dispersity: why the standard deviation is a better measure of dispersion in precision polymerization

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Abstract

Dispersity is firmly established as the standard measure of dispersion in molecular weight distributions. However, it can be misleading, particularly when applied to the relatively narrow molecular weight distributions obtained via living or reversible deactivation polymerizations. The use of the standard deviation is recommended as an alternative. In complex structures, a representative sample of chains provides a better illustration of structural variation than any single number.

Graphical abstract: The downside of dispersity: why the standard deviation is a better measure of dispersion in precision polymerization

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Publication details

The article was received on 25 Jan 2018, accepted on 23 Feb 2018 and first published on 26 Feb 2018


Article type: Perspective
DOI: 10.1039/C8PY00138C
Citation: Polym. Chem., 2018,9, 1366-1370
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    The downside of dispersity: why the standard deviation is a better measure of dispersion in precision polymerization

    S. Harrisson, Polym. Chem., 2018, 9, 1366
    DOI: 10.1039/C8PY00138C

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