Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/15292

Title: Emulsion copolymerization of styrene and butyl acrylate in the presence of a chain transfer agent. Part 2: parameters estimability and confidence regions
Authors: Benyahia, Brahim
Latifi, M. Abderrazak
Fonteix, Christian
Pla, Fernand
Keywords: Emulsion copolymerization model
Estimability analysis
Parameter ranking
Confidence regions
Issue Date: 2013
Publisher: © Elsevier
Citation: BENYAHIA, B. ... et al, 2013. Emulsion copolymerization of styrene and butyl acrylate in the presence of a chain transfer agent. Part 2: parameters estimability and confidence regions. Chemical Engineering Science, 90, pp.110-118.
Abstract: Accurate estimation of the model parameters is required to obtain reliable predictions of the products end-use properties. However, due to the mathematical model structure and/or to a possible lack of measurements, the estimation of some parameters may be impossible. This paper will focus on the case where the main limitations to the parameters estimability are their weak effect on the measured outputs or the correlation between the effects of two or more parameters. The objective of the method developed in this paper is to determine the subset of the most influencing parameters that can be estimated from the available experimental data, when the complete set of model parameters cannot be estimated. This approach has been applied to the mathematical model of the emulsion copolymerization of styrene and butyl acrylate, in the presence of n-dodecyl mercaptan as a chain transfer agent. In addition, a new approach is used to better assess the true confidence regions and evaluate the accuracy of the parameters estimates in more reliable way.
Description: This is the author’s version of a work that was accepted for publication in Chemical Engineering Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/j.ces.2012.12.013
Version: Accepted for publication
DOI: 10.1016/j.ces.2012.12.013
URI: https://dspace.lboro.ac.uk/2134/15292
Publisher Link: http://dx.doi.org/10.1016/j.ces.2012.12.013
ISSN: 0009-2509
Appears in Collections:Published Articles (Chemical Engineering)

Files associated with this item:

File Description SizeFormat
Benyahia_et_al_CES_2012.pdfAccepted version2.62 MBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.