Discrimination of thermally treated low density polyethylenes using DSC and principal component analysis

Yang, L; Thomas, P; Stuart, B

Discrimination of thermally treated low density polyethylenes using DSC and principal component analysis

Yang, L Thomas, P

Stuart, B

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Publication Type:: Journal Article
Citation:: Journal of Thermal Analysis and Calorimetry, 2012, 108 (2), pp. 445 - 448
Issue Date:: 2012-05-01

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Field	Value	Language
dc.contributor.author	Yang, L	en_US
dc.contributor.author	Thomas, P https://orcid.org/0000-0001-6962-2121	en_US
dc.contributor.author	Stuart, B https://orcid.org/0000-0001-9540-4435	en_US
dc.date.issued	2012-05-01	en_US
dc.identifier.citation	Journal of Thermal Analysis and Calorimetry, 2012, 108 (2), pp. 445 - 448	en_US
dc.identifier.issn	1388-6150	en_US
dc.identifier.uri	http://hdl.handle.net/10453/18046
dc.description.abstract	The potential for differential scanning calorimetry (DSC) as a tool for the discrimination of forensic polymer specimens is investigated for a series of commercial low density polyethylene (LDPE) samples. Variation in the melting temperatures of 'as received' samples was found to be too small for its use in sample discrimination. The melting behaviour of thermally treated samples, quenched from the melt in liquid nitrogen followed by annealing at temperatures below the melting temperature, showed promise in discrimination potential. The application of principal component analysis to aid discrimination demonstrated the necessity in using a controlled thermal history to aid the discrimination process. The clustering of the LDPEs based on the factors selected demonstrated the potential of DSC for the discrimination of forensic LDPE samples. © Akadémiai Kiadó, Budapest, Hungary 2011.	en_US
dc.relation.ispartof	Journal of Thermal Analysis and Calorimetry	en_US
dc.relation.isbasedon	10.1007/s10973-011-1946-2	en_US
dc.subject.classification	Physical Chemistry	en_US
dc.title	Discrimination of thermally treated low density polyethylenes using DSC and principal component analysis	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	108	en_US
utslib.for	039902 Forensic Chemistry	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0399 Other Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
utslib.copyright.status	closed_access
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	108	en_US

Abstract:

The potential for differential scanning calorimetry (DSC) as a tool for the discrimination of forensic polymer specimens is investigated for a series of commercial low density polyethylene (LDPE) samples. Variation in the melting temperatures of 'as received' samples was found to be too small for its use in sample discrimination. The melting behaviour of thermally treated samples, quenched from the melt in liquid nitrogen followed by annealing at temperatures below the melting temperature, showed promise in discrimination potential. The application of principal component analysis to aid discrimination demonstrated the necessity in using a controlled thermal history to aid the discrimination process. The clustering of the LDPEs based on the factors selected demonstrated the potential of DSC for the discrimination of forensic LDPE samples. © Akadémiai Kiadó, Budapest, Hungary 2011.

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http://hdl.handle.net/10453/18046