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Zdovc B, Li H, Zhao J, Pahovnik D, Žagar E. Influence of Microstructure on the Elution Behavior of Gradient Copolymers in Different Modes of Liquid Interaction Chromatography. Anal Chem 2022; 94:7844-7852. [PMID: 35604324 PMCID: PMC9178556 DOI: 10.1021/acs.analchem.2c00193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We studied the influence of microstructure on the chromatographic behavior of gradient copolymers with different gradient strengths and block copolymer with completely segregated blocks by using gradient liquid adsorption chromatography (gLAC) and liquid chromatography at critical conditions (LCCC) for one of the copolymer constituents. The copolymers consist of repeating units of poly(propylene oxide) and poly(propylene phthalate) and have comparable average chemical composition and molar mass, and a narrow molar mass distribution to avoid as much as possible the influence of these parameters on the elution behavior of the copolymers. On both reversed stationary phases, the elution volume of gradient copolymers increases with the increasing strength of the gradient. The results indicate that for both modes of liquid interaction chromatography, it is important to consider the effect of microstructure on the elution behavior of the gradient copolymers in addition to the copolymer chemical composition and molar mass in the case of gLAC and the length of the chromatographically visible copolymer constituent in the case of LCCC.
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Affiliation(s)
- Blaž Zdovc
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, Ljubljana SI-1000, Slovenia
| | - Heng Li
- Faculty of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, P. R. China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, P. R. China
| | - David Pahovnik
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, Ljubljana SI-1000, Slovenia
| | - Ema Žagar
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, Ljubljana SI-1000, Slovenia
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Maiko K, Pasch H. Comprehensive Microstructure and Molar Mass Analysis of Polybutadiene by Multidimensional Liquid Chromatography. Macromol Rapid Commun 2015; 36:2137-42. [DOI: 10.1002/marc.201500381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/05/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Khumo Maiko
- Department of Chemistry and Polymer Science; University of Stellenbosch; Private Bag X1 Matieland 7602 Stellenbosch South Africa
| | - Harald Pasch
- Department of Chemistry and Polymer Science; University of Stellenbosch; Private Bag X1 Matieland 7602 Stellenbosch South Africa
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3
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Pasch H. Advanced fractionation methods for the microstructure analysis of complex polymers. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3479] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Harald Pasch
- Department of Chemistry and Polymer Science; University of Stellenbosch; Private Bag X1 7602 Stellenbosch South Africa
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Hehn M, Sinha P, Pasch H, Hiller W. Onflow liquid chromatography at critical conditions coupled to 1H and 2H nuclear magnetic resonance as powerful tools for the separation of poly(methylmethacrylate) according to isotopic composition. J Chromatogr A 2015; 1387:69-74. [DOI: 10.1016/j.chroma.2015.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 11/30/2022]
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5
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Characterization of poly(2-vinylpyridine)-block-poly(methyl methacrylate) copolymers and blends of their homopolymers by liquid chromatography at critical conditions. Anal Bioanal Chem 2014; 406:6311-7. [DOI: 10.1007/s00216-014-8075-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 07/24/2014] [Accepted: 07/28/2014] [Indexed: 10/24/2022]
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6
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Hiller W, Sinha P, Hehn M, Pasch H. Online LC-NMR – From an expensive toy to a powerful tool in polymer analysis. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.10.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Sinha P, Hiller W, Pasch H. HPLC-1
H-NMR Characterization of Polystyrene-block
-Polyisoprene Copolymers: LCCC-1
H-NMR Using a Single Mobile Phase. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/masy.201450305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pritish Sinha
- University of Stellenbosch; Department of Chemistry and Polymer Science; Private Bag X1 7602 Matieland South Africa
| | - Wolf Hiller
- Faculty of Chemistry; TU Dortmund; Otto-Hahn-Straβe 6 44227 Dortmund Germany
| | - Harald Pasch
- University of Stellenbosch; Department of Chemistry and Polymer Science; Private Bag X1 7602 Matieland South Africa
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Malik MI, Pasch H. Novel developments in the multidimensional characterization of segmented copolymers. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.10.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Šišková A, Macová E, Corradini D, Berek D. Liquid chromatography of synthetic polymers under critical conditions of enthalpic interactions 4: Sample recovery. J Sep Sci 2013; 36:2979-85. [DOI: 10.1002/jssc.201300545] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 07/04/2013] [Accepted: 07/04/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Alena Šišková
- Polymer Institute; Slovak Academy of Sciences; Bratislava Slovakia
| | - Eva Macová
- Polymer Institute; Slovak Academy of Sciences; Bratislava Slovakia
| | - Danilo Corradini
- Institute of Chemical Methodologies; National Research Council; Rome Italy
| | - Dušan Berek
- Polymer Institute; Slovak Academy of Sciences; Bratislava Slovakia
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10
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Hiller W, van Aswegen W, Hehn M, Pasch H. Online ThFFF–NMR: A Novel Tool for Molar Mass and Chemical Composition Analysis of Complex Macromolecules. Macromolecules 2013. [DOI: 10.1021/ma400350y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wolf Hiller
- Faculty of Chemistry, TU Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Werner van Aswegen
- Department of Chemistry and
Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa
| | - Mathias Hehn
- Faculty of Chemistry, TU Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Harald Pasch
- Department of Chemistry and
Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa
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11
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12
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Hiller W, Hehn M, Sinha P, Raust JA, Pasch H. Online Coupling of Two-Dimensional Liquid Chromatography and NMR for the Analysis of Complex Polymers. Macromolecules 2012. [DOI: 10.1021/ma301494c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wolf Hiller
- Faculty of Chemistry, TU Dortmund, Otto-Hahn-Straße
6, 44227 Dortmund, Germany
| | - Mathias Hehn
- Faculty of Chemistry, TU Dortmund, Otto-Hahn-Straße
6, 44227 Dortmund, Germany
| | - Pritish Sinha
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South
Africa
| | | | - Harald Pasch
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South
Africa
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13
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Šmigovec Ljubič T, Rebolj K, Pahovnik D, Hadjichristidis N, Žigon M, Žagar E. Utility of Chromatographic and Spectroscopic Techniques for a Detailed Characterization of Poly(styrene-b-isoprene) Miktoarm Star Copolymers with Complex Architecture. Macromolecules 2012. [DOI: 10.1021/ma3012366] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tina Šmigovec Ljubič
- Laboratory for Polymer
Chemistry
and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Katja Rebolj
- Laboratory for Polymer
Chemistry
and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - David Pahovnik
- Laboratory for Polymer
Chemistry
and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Nikos Hadjichristidis
- Chemical and Life Sciences & Engineering Division, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Bldg Ibn Sina (#3) West, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Majda Žigon
- Laboratory for Polymer
Chemistry
and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
- Centre of Excellence for Polymer Materials and Technologies, Tehnološki
Park 24, SI-1000 Ljubljana, Slovenia
| | - Ema Žagar
- Laboratory for Polymer
Chemistry
and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
- Centre of Excellence for Polymer Materials and Technologies, Tehnološki
Park 24, SI-1000 Ljubljana, Slovenia
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Sinha P, Hiller W, Bellas V, Pasch H. Analysis of polystyrene-b-polyisoprene copolymers by coupling of liquid chromatography at critical conditions to NMR at critical conditions of polystyrene and polyisoprene. J Sep Sci 2012; 35:1731-40. [DOI: 10.1002/jssc.201101033] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 01/23/2012] [Accepted: 01/23/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Pritish Sinha
- Department of Chemistry and Polymer Science; University of Stellenbosch; Matieland; South Africa
| | - Wolf Hiller
- Faculty of Chemistry; Technical University of Dortmund; Dortmund; Germany
| | | | - Harald Pasch
- Department of Chemistry and Polymer Science; University of Stellenbosch; Matieland; South Africa
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15
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Uliyanchenko E, van der Wal S, Schoenmakers PJ. Challenges in polymer analysis by liquid chromatography. Polym Chem 2012. [DOI: 10.1039/c2py20274c] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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16
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Hiller W, Sinha P, Hehn M, Pasch H, Hofe T. Separation Analysis of Polyisoprenes Regarding Microstructure by Online LCCC-NMR and SEC-NMR. Macromolecules 2011. [DOI: 10.1021/ma102750s] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wolf Hiller
- Faculty of Chemistry, TU Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Pritish Sinha
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa
| | - Mathias Hehn
- Faculty of Chemistry, TU Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany
| | - Harald Pasch
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa
| | - Thorsten Hofe
- PSS Polymer Standards Service GmbH, In der Dalheimer Wiese 5, 55120 Mainz, Germany
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