Publications HT Lab Team

Reverse engineering of chemically similar bimodal high density polyethylenes: a comprehensive study using advanced chromatographic techniques
Macromolecular Materials and Engineering 2022 Vol.307 Pages 2200149
Contributors
Ndiripo, Anthony
Lamola, Helen
Ndlovu, Petronella Z.
Lederer, Albena
Pasch, Harald
van Reenen, Albert J.
Link to Publication

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Fractionation of chain walking polyethylene and elucidation of branching, conformation and molar mass distributions
International Journal of Polymer Analysis and Characterization 2021 Vol.26 Pages 47-59 1023-666X
Contributors
Plüschke, Laura
Ndiripo, Anthony
Mundil, Robert
Merna, Jan
Pasch, Harald
Lederer, Albena


Fractionation of Chain Walking Polyethylene and Elucidation of Branching, Conformation and Molar Mass Distributions
International Journal of Polymer Analysis and Characterization 2021 Vol.26 Pages 47-59
Contributors
Plüschke, Laura
Ndiripo, Anthony
Mundil, Robert
Merna, Jan
Pasch, Harald
Lederer, Albena
DOI
10.1080/1023666X.2020.1840865
Link to Publication


Multidimensional analytical protocols for the fractionation and analysis of complex polyolefins
Journal of Polymer Science 20212642-4150
Contributors
Pasch, Harald
Ndiripo, Anthony
Bungu, Paul Severin Eselem


Improving temperature gradient interaction chromatography of polyolefins by simultaneous use of different stationary phases
Journal of Chromatography A 2021 Vol.1653 Pages 462416 0021-9673
Contributors
Ndiripo, Anthony
Ndlovu, Petronella Zabesuthu
Albrecht, Andreas
Pasch, Harald

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Improving chromatographic separation of polyolefins on porous graphitic carbon stationary phases: effects of adsorption promoting solvent and column length
RSC Advances 2020 Vol.10 Pages 17942-17950
Contributors
Ndiripo, Anthony
Albrecht, Andreas
Pasch, Harald


Retention of polypropylene stereoisomers in solvent gradient interaction chromatography on porous graphitic carbon as influenced by temperature and mobile phase composition
Journal of Chromatography A 2020 Vol.1618 Pages 460865 0021-9673
Contributors
Ndiripo, Anthony
Pasch, Harald
DOI
https://doi.org/10.1016/j.chroma.2020.460865


Unraveling Multiple Distributions in Chain Walking Polyethylene Using Advanced Liquid Chromatography
Macromolecules 2020 Vol.53 Pages 3765-3777
Contributors
Plüschke, Laura
Ndiripo, Anthony
Mundil, Robert
Merna, Jan
Pasch, Harald
Lederer, Albena
DOI
10.1021/acs.macromol.0c00314
Link to Publication


Deformulation of commercial linear low-density polyethylene resins by advanced fractionation and analysis
Polymer International 2020 Vol.69 Pages 291-300 0959-8103
Contributors
Mawande,Sigwinta
Ndiripo,Anthony
Wewers,Francois
Pasch,Harald


Advanced liquid chromatography of polyolefins using simultaneous solvent and temperature gradients
Analytical Chemistry 2020 Vol.92 Pages 7325-7333 0003-2700
Contributors
Ndiripo, Anthony
Albrecht, Andreas
Pasch, Harald


Heterophasic ethylene-propylene copolymers: New insights on complex microstructure by combined molar mass fractionation and high temperature liquid chromatography
Polymer Degradation and Stability 2020 Vol.171 Pages 109022 0141-3910
Contributors
Magagula, Sifiso Innocent
Ndiripo, Anthony
van Reenen, Albert Johannes


Unraveling multiple distributions in chain walking polyethylene using advanced liquid chromatography
Macromolecules 2020 Vol.53 Pages 3765-3777 0024-9297
Contributors
Plüschke, Laura
Ndiripo, Anthony
Mundil, Robert
Merna, Jan
Pasch, Harald
Lederer, Albena

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Comprehensive branching analysis of polyethylene by combined fractionation and thermal analysis
Polymer International 2019 Vol.68 Pages 206-217 0959-8103
Contributors
Ndiripo, Anthony
Eselem Bungu, Paul Severin
Pasch, Harald


Multidimensional chromatographic analysis of carboxylic acid-functionalized polyethylene
Polymer Chemistry 2019 Vol.10 Pages 5859-5869
Contributors
Ndiripo, Anthony
Pornwilard, M-M
Pathaweeisariyakul, Thipphaya
Pasch, Harald

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Chemical composition fractionation of olefin plastomers/elastomers by solvent and thermal gradient interaction chromatography
Macromolecular Rapid Communications 2018 Vol.39 Pages 1700703 1022-1336
Contributors
Ndiripo, Anthony
Albrecht, Andreas
Monrabal, Benjamin
Wang, Jingbo
Pasch, Harald


Comprehensive analysis of oxidized waxes by solvent and thermal gradient interaction chromatography and two-dimensional liquid chromatography
Analytical Chemistry 2018 Vol.90 Pages 7626-7634 0003-2700
Contributors
Ndiripo, Anthony
Pasch, Harald


A multidimensional fractionation protocol for the oligomer analysis of oxidized waxes
Analytica Chimica Acta 2018 Vol.1027 Pages 137-148 0003-2670
Contributors
Ndiripo, Anthony
Pasch, Harald

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Chemical composition separation of a propylene–ethylene random copolymer by high temperature solvent gradient interaction chromatography
Journal of Chromatography A 2017 Vol.1522 Pages 23–29 0021-9673
Contributors
Liu, Yonggang
Phiri, Mohau Justice
Ndiripo, Anthony
Pasch, Harald

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Ethylene/1-heptene copolymers as interesting alternatives to 1-octene-based LLDPE: Molecular structure and physical properties
Journal of Polymer Science, Part A: Polymer Chemistry 2016 Vol.54 Pages 962-975 1099-0518
Contributors
Ndiripo, Anthony
Joubert, Dawid
Pasch, Harald

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On the multimodality of preparative TREF fractionation as detected by advanced analytical methods
Analytical and Bioanalytical Chemistry 2015 Vol.407 Pages 6493-6503 1618-2642
Contributors
Ndiripo, Anthony
Pasch, Harald

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