2009/01/01 by R. F. T. Stepto · 6 citations
Chemistry · #Adsorption, diffusion, and thermodynamic properties of materials #Analytical Chemistry and Chromatography #Chemical Thermodynamics and Molecular Structure
paper · pdf · doi:10.1351/pac-rec-08-05-02
openalex publication_date 2009/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Abstract This recommendation defines just three terms, viz., (1) molar-mass dispersity, relative-molecular-mass dispersity, or molecular-weight dispersity; (2) degree- of-polymerization dispersity; and (3) dispersity. "Dispersity" is a new word, coined to replace the misleading, but widely used term "polydispersity index" for M w / M n and X w / X n . 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.