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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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Supplementary files

Article information


Submitted
25 Jan 2018
Accepted
23 Feb 2018
First published
26 Feb 2018

Polym. Chem., 2018,9, 1366-1370
Article type
Perspective

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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