Temperature gradient interaction chromatography of low molecular weight polystyrene

Lee, W.; Lee, H.C.; Park, T.; Chang, Taihyun; Chang, Jung Yun

doi:10.1016/s0032-3861(99)00132-9

Cited by 29 publications

(11 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to have the temperature as an effective parameter to control the retention of polymeric solutes in IC, we have to choose a right eluent for the polymer species of interest 23) . It is necessary to fine-tune the solvent condition if a better resolution in TGIC is required.…”

Section: Ic Separation Of Oligomeric Pimentioning

confidence: 99%

Characterization of polyisoprene by temperature gradient interaction chromatography

Lee¹,

Lee²,

Park³

et al. 2000

Macromol. Chem. Phys.

View full text Add to dashboard Cite

Temperature gradient interaction chromatography (TGIC) analysis of polyisoprene (PI) is reported. PI can be fractionated in terms of molecular weight with high resolution by TGIC using a C18 bonded silica column as the stationary phase and a mixture of CH2Cl2/CH3CN (80/20, v/v) as the mobile phase. The temperature was increased during the elution from 5°C to 34°C to optimize the fractionation of high molecular weight PI. The relatively poor resolution in the low molecular weight range was improved by changing the eluent composition. For example, all the oligomeric species from the unimer to the 29mer of a low molecular weight PI (average mol. wt.: 900) were fully resolved with the mixed eluent of CH2Cl2/CH3CN (50/50, v/v) and a linear temperature program from 5°C to 40°C. In addition, simultaneous size exclusion chromatography and TGIC fractionation of PI/polystyrene, PI/poly(methylmethacrylate) mixtures are also reported.

show abstract

Section: Ic Separation Of Oligomeric Pimentioning

confidence: 99%

Characterization of polyisoprene by temperature gradient interaction chromatography

Lee¹,

Lee²,

Park³

et al. 2000

Macromol. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…Since temperature gradient interaction chromatography (TGIC) was first reported in 1996 1 by Prof. Taihyun Chang, many studies have been carried out on various types of linear polymers [2][3][4][5] in order to compare TGIC characterisation to the more commonly exploited size exclusion chromatography (SEC). However, TGIC came to prominence as a characterisation tool for the analysis of structural heterogeneity of 'model' branched polymers and a significant volume of work has been published in this field [6][7][8][9][10][11][12][13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

Normal-phase (temperature gradient) interaction chromatography – A powerful tool for the characterisation of high molecular weight chain-end functionalised polymers

Agostini

Oti

Keth

2015

European Polymer Journal

View full text Add to dashboard Cite

(2015) 'Normal-phase (temperature gradient) interaction chromatography A powerful tool for the characterisation of high molecular weight chain-end functionalised polymers.', European polymer journal., 73 . pp. 105-115. Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. is all the more remarkable that complete (baseline) resolution can be achieved for two polymers with an identical molar mass (< 200,000 gmol -1 ), which differ only in that one sample is functionalised with a single primary alcohol group.

show abstract

“…Slow temperature ramps (< 1 ~ min 1) were obligatory in order to prevent radial temperature gradients across the wide bore column, causing worsened efficiency. Consequently, Lee et al obtained long analysis times and subsequently broad peaks, which only could be improved by using steeper temperature gradients [20]. In the present study PS 1000 oligomers were separated using temperature-programmed packed capillary LC (Figure ld).…”

Section: Separation Of Low Molecular Weight Polystyrene Oligomersmentioning

confidence: 72%

“…Previously, Lee et al have explored temperature-programmed conventional sized LC for the separation of low MW PSs [20]. Slow temperature ramps (< 1 ~ min 1) were obligatory in order to prevent radial temperature gradients across the wide bore column, causing worsened efficiency.…”

Section: Separation Of Low Molecular Weight Polystyrene Oligomersmentioning

confidence: 99%

Temperature-programmed packed-capillary liquid chromatographic separation of polystyrenes

Bruheim

Molander

et al. 2001

Chromatographia

View full text Add to dashboard Cite

SummaryTemperature-programmed packed capillary liquid chromatography with UV detection has been used for the separation of a wide range of polysf,/renes. The low thermal mass of the reversed phase packed capillary columns (0.32-mm internal diameter) allowed rapid temperature programming for retention control. By the use of temperature gradients as steep as 40~ 9 min 1, rapid separations (11 minutes) of polysf,/rene standards (2000-400000) could be achieved. Furthermore, the oligomers of the polyslyrene 1000 standard were resolved using temperature programming. When replacing tetrahydrofurane with acetonitrile as mobile phase component, peak splitting within the ohgomer peaks was observed, revealing some information about the tacticify of the polysf,/rene 1000 sample.

show abstract

Temperature gradient interaction chromatography of low molecular weight polystyrene

Cited by 29 publications

References 14 publications

Characterization of polyisoprene by temperature gradient interaction chromatography

Characterization of polyisoprene by temperature gradient interaction chromatography

Normal-phase (temperature gradient) interaction chromatography – A powerful tool for the characterisation of high molecular weight chain-end functionalised polymers

Temperature-programmed packed-capillary liquid chromatographic separation of polystyrenes

Contact Info

Product

Resources

About