logarithmic normal distribution

of a macromolecular assembly

A continuous distribution with the differential mass-distribution function of the form:

$f w x d x = 1 a π x exp ( − 1 a 2 ln 2 x b ) d x$

where $x$ is a parameter characterizing the chain length, such as relative molecular mass or degree of polymerization and $a$ and $b$ are positive adjustable parameters.

Source:

Purple Book, p. 57

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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/10.1351/goldbook.L03611.

Original PDF version: http://www.iupac.org/goldbook/L03611.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.

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