Effect of block copolymer chain architecture on chromatographic retention

Insun Park, Soojin Park, Donghyun Cho, Taihyun Chang, Eunkyoung Kim, Kwanyoung Lee, Young Jin Kim

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The chain architecture dependence of the retention behavior of block copolymers in the temperature gradient interaction chromatography (TGIC) and liquid chromatography at the critical condition (LCCC) was investigated. For the purpose, polystyrene (PS)/polybutadiene (PB) diblock (SB), SBS triblock, and BSB triblock copolymers were prepared by sequential anionic polymerization and further fractionated by reversed-phase TGIC to obtain a set of the block copolymers with high purity, narrow distribution, and matched block length. In the TGIC separation with C18 bonded silica stationary phase and a mixture of CH2Cl2/CH3CN mobile phase, retention of the three block copolymers with matched molecular weight and composition shows a significant architecture effect: SBS elutes significantly earlier while BSB or SB elute later at similar retention volume. It indicates that the polymer-stationary phase interaction is less effective for the PB block located at the middle of the chain than the blocks located at the chain end. In LCCC separation at the critical condition for PB block, SBS is eluted early while SB and BSB were eluted later at the same retention time. Therefore, triblock copolymer with an invisible middle block behaves differently from those having invisible end block(s). This behavior is consistent with the theoretical prediction by Guttman et al. [Macromolecules 1996, 29, 5723].

Original languageEnglish
Pages (from-to)8539-8543
Number of pages5
JournalMacromolecules
Volume36
Issue number22
DOIs
Publication statusPublished - 2003 Nov 4

Fingerprint

Block copolymers
Polybutadienes
Chromatography
Thermal gradients
Liquid chromatography
Anionic polymerization
Polystyrenes
Macromolecules
Silicon Dioxide
Polymers
Molecular weight
Silica
Chemical analysis
polybutadiene

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Park, I., Park, S., Cho, D., Chang, T., Kim, E., Lee, K., & Kim, Y. J. (2003). Effect of block copolymer chain architecture on chromatographic retention. Macromolecules, 36(22), 8539-8543. https://doi.org/10.1021/ma035033o
Park, Insun ; Park, Soojin ; Cho, Donghyun ; Chang, Taihyun ; Kim, Eunkyoung ; Lee, Kwanyoung ; Kim, Young Jin. / Effect of block copolymer chain architecture on chromatographic retention. In: Macromolecules. 2003 ; Vol. 36, No. 22. pp. 8539-8543.
@article{86c318f6451a4b308124dbfdb6b68ae8,
title = "Effect of block copolymer chain architecture on chromatographic retention",
abstract = "The chain architecture dependence of the retention behavior of block copolymers in the temperature gradient interaction chromatography (TGIC) and liquid chromatography at the critical condition (LCCC) was investigated. For the purpose, polystyrene (PS)/polybutadiene (PB) diblock (SB), SBS triblock, and BSB triblock copolymers were prepared by sequential anionic polymerization and further fractionated by reversed-phase TGIC to obtain a set of the block copolymers with high purity, narrow distribution, and matched block length. In the TGIC separation with C18 bonded silica stationary phase and a mixture of CH2Cl2/CH3CN mobile phase, retention of the three block copolymers with matched molecular weight and composition shows a significant architecture effect: SBS elutes significantly earlier while BSB or SB elute later at similar retention volume. It indicates that the polymer-stationary phase interaction is less effective for the PB block located at the middle of the chain than the blocks located at the chain end. In LCCC separation at the critical condition for PB block, SBS is eluted early while SB and BSB were eluted later at the same retention time. Therefore, triblock copolymer with an invisible middle block behaves differently from those having invisible end block(s). This behavior is consistent with the theoretical prediction by Guttman et al. [Macromolecules 1996, 29, 5723].",
author = "Insun Park and Soojin Park and Donghyun Cho and Taihyun Chang and Eunkyoung Kim and Kwanyoung Lee and Kim, {Young Jin}",
year = "2003",
month = "11",
day = "4",
doi = "10.1021/ma035033o",
language = "English",
volume = "36",
pages = "8539--8543",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "22",

}

Park, I, Park, S, Cho, D, Chang, T, Kim, E, Lee, K & Kim, YJ 2003, 'Effect of block copolymer chain architecture on chromatographic retention', Macromolecules, vol. 36, no. 22, pp. 8539-8543. https://doi.org/10.1021/ma035033o

Effect of block copolymer chain architecture on chromatographic retention. / Park, Insun; Park, Soojin; Cho, Donghyun; Chang, Taihyun; Kim, Eunkyoung; Lee, Kwanyoung; Kim, Young Jin.

In: Macromolecules, Vol. 36, No. 22, 04.11.2003, p. 8539-8543.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of block copolymer chain architecture on chromatographic retention

AU - Park, Insun

AU - Park, Soojin

AU - Cho, Donghyun

AU - Chang, Taihyun

AU - Kim, Eunkyoung

AU - Lee, Kwanyoung

AU - Kim, Young Jin

PY - 2003/11/4

Y1 - 2003/11/4

N2 - The chain architecture dependence of the retention behavior of block copolymers in the temperature gradient interaction chromatography (TGIC) and liquid chromatography at the critical condition (LCCC) was investigated. For the purpose, polystyrene (PS)/polybutadiene (PB) diblock (SB), SBS triblock, and BSB triblock copolymers were prepared by sequential anionic polymerization and further fractionated by reversed-phase TGIC to obtain a set of the block copolymers with high purity, narrow distribution, and matched block length. In the TGIC separation with C18 bonded silica stationary phase and a mixture of CH2Cl2/CH3CN mobile phase, retention of the three block copolymers with matched molecular weight and composition shows a significant architecture effect: SBS elutes significantly earlier while BSB or SB elute later at similar retention volume. It indicates that the polymer-stationary phase interaction is less effective for the PB block located at the middle of the chain than the blocks located at the chain end. In LCCC separation at the critical condition for PB block, SBS is eluted early while SB and BSB were eluted later at the same retention time. Therefore, triblock copolymer with an invisible middle block behaves differently from those having invisible end block(s). This behavior is consistent with the theoretical prediction by Guttman et al. [Macromolecules 1996, 29, 5723].

AB - The chain architecture dependence of the retention behavior of block copolymers in the temperature gradient interaction chromatography (TGIC) and liquid chromatography at the critical condition (LCCC) was investigated. For the purpose, polystyrene (PS)/polybutadiene (PB) diblock (SB), SBS triblock, and BSB triblock copolymers were prepared by sequential anionic polymerization and further fractionated by reversed-phase TGIC to obtain a set of the block copolymers with high purity, narrow distribution, and matched block length. In the TGIC separation with C18 bonded silica stationary phase and a mixture of CH2Cl2/CH3CN mobile phase, retention of the three block copolymers with matched molecular weight and composition shows a significant architecture effect: SBS elutes significantly earlier while BSB or SB elute later at similar retention volume. It indicates that the polymer-stationary phase interaction is less effective for the PB block located at the middle of the chain than the blocks located at the chain end. In LCCC separation at the critical condition for PB block, SBS is eluted early while SB and BSB were eluted later at the same retention time. Therefore, triblock copolymer with an invisible middle block behaves differently from those having invisible end block(s). This behavior is consistent with the theoretical prediction by Guttman et al. [Macromolecules 1996, 29, 5723].

UR - http://www.scopus.com/inward/record.url?scp=0344118104&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0344118104&partnerID=8YFLogxK

U2 - 10.1021/ma035033o

DO - 10.1021/ma035033o

M3 - Article

VL - 36

SP - 8539

EP - 8543

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 22

ER -