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Provisional Recommendations

Polymer Division
Subcommittee on Polymer Terminology


This recommendation defines just three terms, viz., molar-mass dispersity, degree-of-polymerization dispersity, and dispersity. 'Dispersity' is a new word, coined to replace the misleading, but widely used term 'polydispersity index'. The document, although brief, also has a broader significance in that it seeks to put the terminology describing dispersions of distributions of properties of polymeric (and non-polymeric) materials on an unambiguous and justifiable footing..

> Download full text of the Provisional Recommendations (pdf file - 161KB)

Comments by 30 September 2008
Prof. Robert Stepto
University of Manchester
Polymer Science & Technology Group (MMSC)
Manchester Materials Science Centre
Grosvenor Street
Manchester M1 7HS
United Kingdom
E-mail: [email protected] or [email protected]

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