Retention behavior of polystyrene oligomers in reversed-phase liquid chromatography

Sindy Kayillo; Gary R. Dennis; Paul Wormell; Ross A. Shalliker

doi:10.1109/TSP.2006.874812

Retention behavior of polystyrene oligomers in reversed-phase liquid chromatography

Sindy Kayillo, Gary R. Dennis, Paul Wormell, Ross A. Shalliker

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

Reversed-phase liquid chromatography (RPLC) was employed to investigate the behaviour of low-molecular-mass polystyrene oligomers with three different end groups, n-butyl, sec-butyl, and tert.-butyl polystyrenes. Exothermodynamic retention studies on the polystyrene oligomers were carried out using a C18 stationary phase column and 100% methanol mobile phase over the temperature range 15 to 60 °C. The resulting van’t Hoff plots were linear over the entire temperature range for all three end group polystyrenes. Enthalpy–entropy compensation (EEC) showed a linear compensation for the higher-order oligomers, but was non-linear for the lower-order oligomers, indicating a change in the mechanism of retention. Differences in the extent of retention for each of the three end groups were also apparent. The ramifications of these differences are discussed.

Original language	English
Pages (from-to)	173-181
Number of pages	9
Journal	Journal of Chromatography A
Volume	967
DOIs	https://doi.org/10.1109/TSP.2006.874812
Publication status	Published - 2002

Keywords

High performance liquid chromatography
Oligomers
Polystyrene
Second-order statistics (SOS)
Spectral factorization
Precoders
Blind identification
Multiple-input multiple-output (MIMO) channels

Access to Document

10.1109/TSP.2006.874812

Cite this

@article{d74e1bb5d5344084bcf576a0945be577,

title = "Retention behavior of polystyrene oligomers in reversed-phase liquid chromatography",

abstract = "Reversed-phase liquid chromatography (RPLC) was employed to investigate the behaviour of low-molecular-mass polystyrene oligomers with three different end groups, n-butyl, sec-butyl, and tert.-butyl polystyrenes. Exothermodynamic retention studies on the polystyrene oligomers were carried out using a C18 stationary phase column and 100% methanol mobile phase over the temperature range 15 to 60 °C. The resulting van{\textquoteright}t Hoff plots were linear over the entire temperature range for all three end group polystyrenes. Enthalpy–entropy compensation (EEC) showed a linear compensation for the higher-order oligomers, but was non-linear for the lower-order oligomers, indicating a change in the mechanism of retention. Differences in the extent of retention for each of the three end groups were also apparent. The ramifications of these differences are discussed.",

keywords = "High performance liquid chromatography, Oligomers, Polystyrene, Second-order statistics (SOS), Spectral factorization, Precoders, Blind identification, Multiple-input multiple-output (MIMO) channels",

author = "Sindy Kayillo and Dennis, {Gary R.} and Paul Wormell and Shalliker, {Ross A.}",

year = "2002",

doi = "10.1109/TSP.2006.874812",

language = "English",

volume = "967",

pages = "173--181",

journal = "Journal of Chromatography A",

issn = "0021-9673",

publisher = "Elsevier",

}

TY - JOUR

T1 - Retention behavior of polystyrene oligomers in reversed-phase liquid chromatography

AU - Kayillo, Sindy

AU - Dennis, Gary R.

AU - Wormell, Paul

AU - Shalliker, Ross A.

PY - 2002

Y1 - 2002

N2 - Reversed-phase liquid chromatography (RPLC) was employed to investigate the behaviour of low-molecular-mass polystyrene oligomers with three different end groups, n-butyl, sec-butyl, and tert.-butyl polystyrenes. Exothermodynamic retention studies on the polystyrene oligomers were carried out using a C18 stationary phase column and 100% methanol mobile phase over the temperature range 15 to 60 °C. The resulting van’t Hoff plots were linear over the entire temperature range for all three end group polystyrenes. Enthalpy–entropy compensation (EEC) showed a linear compensation for the higher-order oligomers, but was non-linear for the lower-order oligomers, indicating a change in the mechanism of retention. Differences in the extent of retention for each of the three end groups were also apparent. The ramifications of these differences are discussed.

AB - Reversed-phase liquid chromatography (RPLC) was employed to investigate the behaviour of low-molecular-mass polystyrene oligomers with three different end groups, n-butyl, sec-butyl, and tert.-butyl polystyrenes. Exothermodynamic retention studies on the polystyrene oligomers were carried out using a C18 stationary phase column and 100% methanol mobile phase over the temperature range 15 to 60 °C. The resulting van’t Hoff plots were linear over the entire temperature range for all three end group polystyrenes. Enthalpy–entropy compensation (EEC) showed a linear compensation for the higher-order oligomers, but was non-linear for the lower-order oligomers, indicating a change in the mechanism of retention. Differences in the extent of retention for each of the three end groups were also apparent. The ramifications of these differences are discussed.

KW - High performance liquid chromatography

KW - Oligomers

KW - Polystyrene

KW - Second-order statistics (SOS)

KW - Spectral factorization

KW - Precoders

KW - Blind identification

KW - Multiple-input multiple-output (MIMO) channels

UR - http://handle.uws.edu.au:8081/1959.7/10712

UR - http://www.scopus.com/inward/record.url?scp=33745727016&partnerID=8YFLogxK

U2 - 10.1109/TSP.2006.874812

DO - 10.1109/TSP.2006.874812

M3 - Article

SN - 0021-9673

VL - 967

SP - 173

EP - 181

JO - Journal of Chromatography A

JF - Journal of Chromatography A

ER -

Retention behavior of polystyrene oligomers in reversed-phase liquid chromatography

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this