Update and critical reanalysis of IUPAC benchmark propagation rate coefficient data

Type of content
Journal Article
Thesis discipline
Degree name
Publisher
Royal Society of Chemistry (RSC)
Journal Title
Journal ISSN
Volume Title
Language
en
Date
2022
Authors
Beuermann S
Harrisson S
Hutchinson RA
Junkers T
Russell, Greg
Abstract

We present an updated and expanded dataset of benchmark propagation rate coefficient (kp) data obtained from pulsed laser polymerization (PLP) of 13 vinyl monomers (styrene, methyl methacrylate, ethyl methacrylate, butyl methacrylate, dodecyl methacrylate, cyclohexyl methacrylate, glycidyl methacrylate, benzyl methacrylate, isobornyl methacrylate, butyl acrylate, methacrylic acid (15% aq. solution), methyl acrylate and vinyl acetate. The data are reanalyzed using a statistical model that takes into account systematic interlaboratory variation, leading to significantly larger joint confidence regions and slightly adjusted figures relative to the original IUPAC benchmark publications. A full set of revised IUPAC benchmark values of pre-exponential factors, activation energies (EA) and kp at 25 °C are presented. 81 independent PLP studies were pooled to give estimates of the standard interlaboratory error in measurements of ln(kp at 25 °C) and EA, which were obtained as 0.08 and 1.4 kJ mol−1, respectively, with a correlation coefficient of 0.04. We recommend that these values be used to estimate the uncertainty in PLP studies that have not been independently replicated.

Description
Citation
Beuermann S, Harrisson S, Hutchinson RA, Junkers T, Russell GT (2022). Update and critical reanalysis of IUPAC benchmark propagation rate coefficient data. Polymer Chemistry. 13(13). 1891-1900.
Keywords
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
0303 Macromolecular and Materials Chemistry
0307 Theoretical and Computational Chemistry
Fields of Research::34 - Chemical sciences
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All rights reserved unless otherwise stated