University of Surrey

Test tubes in the lab Research in the ATI Dance Research

A ToF-SIMS/MVA approach to identify phase segregation in blends of incompatible but extremely similar resins

Ferraz Trindade, Gustavo, Abel, Marie-Laure, Lowe, Chris, Tshulu, Rene and Watts, John (2018) A ToF-SIMS/MVA approach to identify phase segregation in blends of incompatible but extremely similar resins Analytical Chemistry, 90 (6). pp. 3936-3941.

[img] Text
A ToF-SIMS-MVA approach to identify phase segregation in blends of incompatible but extremely similar resins.pdf - Accepted version Manuscript
Restricted to Repository staff only until 1 March 2019.

Download (1MB)

Abstract

This work presents a data analysis extension to a well-established methodology for the assessment of organic coatings using imaging time-of-flight secondary ion mass spectrometry (ToF-SIMS). Such an approach produced results that can be analysed using a multivariate analysis (MVA) procedure that performs the simultaneous processing of spatially and chemically related datasets. The coatings consist of two commercial resins that yield extremely similar spectra and there are no peaks of sufficient intensity that are uniquely diagnostic of either material to provide an unambiguous identification of each. In order to resolve the problem, in addition to microtome-based sample preparation steps of tapers for the analysis through sample thickness, standard samples in cured and uncured conditions are introduced and measured in the same fashion as the specimens under investigation. The resulting ToF-SIMS imaging datasets have been processed using non-negative matrix factorisation (NMF), which enabled identification of phase separation in the cured coatings.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Ferraz Trindade, Gustavog.ferraztrindade@surrey.ac.uk
Abel, Marie-LaureM.Abel@surrey.ac.uk
Lowe, Chris
Tshulu, Rener.tshulu@surrey.ac.uk
Watts, JohnJ.Watts@surrey.ac.uk
Date : 28 February 2018
Identification Number : 10.1021/acs.analchem.7b04877
Copyright Disclaimer : Copyright © 2018 American Chemical Society
Depositing User : Clive Harris
Date Deposited : 01 Mar 2018 16:20
Last Modified : 21 Mar 2018 13:31
URI: http://epubs.surrey.ac.uk/id/eprint/845932

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800