Alumni

Dr. Christian Wahlen

Contact
Office Tel.: +49 (0)6131 39 26139
Lab Tel.: +49 (0)6131 39 25357
Email christian.wahlen@uni-mainz.de

 

 

Research Topic

Anionic Polymerization of Terpenes and Bio-Based Thermoplastic Elastomers

 

Interests

Carbanionic Polymerization, Block Copolymers and Multiblock Structures

 

Publications

[1] “Poly(phosphonate)s via Olefin Metathesis: Adjusting Hydrophobicity and Morphology” T. Steinbach, E. M. Alexandrino, C. Wahlen, K. Landfester, F. R. Wurm, Macromolecules 2014, 47 (15), 4884–4893. DOI: 10.1021/ma5013286
[2]

“Poly(phosphonate)-mediated Horner–Wadsworth–Emmons reactions” T. Steinbach, C. Wahlen, F. R. Wurm, Polym. Chem. 2015, 6 (7), 1192–1202. DOI: 10.1039/C4PY01365D
[3] "One-Step Block Copolymer Synthesis versus Sequential Monomer Addition: A Fundamental Study Reveals That One Methyl Group Makes a Difference" E. Grune, T. Johann, M. Appold, C. Wahlen, J. Blankenburg, D. Leibig, A. H. E. Müller, M. Gallei, H. Frey, Macromolecules, 2018,51, 3527. DOI: 10.1021/acs.macromol.8b00404.
[4] "Tapered Multiblock Copolymers Based on Isoprene and 4-Methylstyrene: Influence of the Tapered Interface on the Self-Assembly and Thermomechanical Properties" E. Galanos, E. Grune, C. Wahlen, A. H. E. Müller, M. Appold, M. Gallei, H. Frey, G. Floudas, Macromolecules 2019, 52, 1577–1588. DOI: 10.1021/acs.macromol.8b02669.
[5] "Myrcenol-Based Monomer for Carbanionic Polymerization: Functional Copolymers with Myrcene and Bio-Based Graft Copolymers"
C. Wahlen, M. Rauschenbach, J. Blankenburg, E. Kersten, C. P. Ender and H. Frey, Macromolecules 2020, DOI: 10.1021/acs.macromol.0c01734.
[6] "Tapered Multiblock Copolymers Based on Farnesene and Styrene: Impact of Biobased Polydiene Architectures on Material Properties"
C. Wahlen, J. Blankenburg, P. v. Tiedemann, J. Ewald, P. Sajkiewicz, A. H. E. Müller, G. Floudas, and H. Frey, Macromolecules 2020, DOI: 10.1021/acs.macromol.0c02118.

 

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Dr. Jennifer Keth

Contact
Office Tel.: +49 (0)6131 39 26139
Lab Tel.: +49 (0)6131 39 25395
Email j.keth@uni-mainz.de

 

 

Research Topic

Hydroxamic acid-functionalized polymers for metal chelation

 

Interests

Synthesis of functional monomers, RAFT polymerization technique

 

Publications

[1] "Hydroxamic Acid – An Underrated Moiety? Marrying Bioinorganic Chemistry and Polymer Science"
J. Keth, T. Johann and H. Frey, Biomacromolecules 2020. DOI: 10.1021/acs.biomac.0c00449.
[2] "A general concept for the introduction of hydroxamic acids into polymers"
T. Johann, J. Keth, M. Bros, H. Frey, Chem. Sci. 2019, DOI: 10.1039/c9sc02557j.
[3] "Normal-phase (temperature gradient) interaction chromatography – A powerful tool for the characterisation of high molecular weight chain-end functionalised polymers"
L.R. Hutchings, S. Agostini, M. E. Oti, J. Keth, Eur. Polym. J. 2015, DOI: 10.1016/j.eurpolymj.2015.10.010.

 

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Dr. Erik Kersten

Contact
Office Tel.: +49 (0)6131 39 26139
Lab Tel.: +49 (0)6131 39 25395
Email erkerste@uni-mainz.de

 

 

Research Topic

Funktionelle Poly(lactide)

 

Interests

Polyesters / Biodegradable Materials

 

Publications

[1] "Poly(propylene oxide-co-ethylene oxide) gradient is controlled by the polymerization method: determination of reactivity ratios by direct comparison of different copolymerization models" J. Blankenburg, E. Kersten, K. Maciol, M. Wagner, S. Zarbakhsh, H. Frey, Polym. Chem. 2019, DOI: 10.1039/C9PY00500E.

 

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Dr. Eyleen Becker

Contact
Office Tel.: +49 (0)6131 39 26139
Lab Tel.: +49 (0)6131 39 25395
Email ebecker@uni-mainz.de

 

 

Research Topic

Synthesis of pH- and redox-responsive amphiphilic polyether based polymers

 

 

Interests

Liposomes

"Functional PEG"

 

Publications

[1] "Stability of Alkyl Chain-Mediated Lipid Anchoring in Liposomal Membranes"
L. Gleue, J. Schupp, N. Zimmer, E. Becker, H. Frey, A. Tuettenberg, M. Helm, Cells 2020, 9, 2213, DOI: 10.3390/cells9102213.

 

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Dr. Philipp Jung

Contact
Office Tel.: +49 (0)6131 39 26139
Lab Tel.: +49 (0)6131 39 26274
Email p.jung@uni-mainz.de

 

 

Research Topic

Polyether synthesis in microstructured continous flow reactors and post functionalization

 

Interests

"Hyperbranched Polymers"

 

Publications

[1] Glycidyl tosylate: Polymerization of a "Non-Polymerizable” Monomer permits Universal Post-Functionalization of Polyethers"
P. Jung, A.D. Ziegler, J. Blankenburg, H. Frey, Angew. Chem. Int. Ed. 2019, DOI: 10.1002/anie.201904203

 

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Dr. Johannes Ewald

Contact
Office Tel.: +49 (0)6131 39 26139
Lab Tel.: +49 (0)6131 39 26274
Email j.ewald(at)uni-mainz.de

 

 

Research Topic

Nanoparticles for specific immunotherapy

 

Interests

"Functional PEG"

Liposomes

 

Publications

"Acid‐cleavable Poly(ethylene Glycol) Hydrogels Displaying Protein Release at pH 5"
J. Ewald, J. Blankenburg, M. Worm, L. Besch, R. E. Unger, W. Tremel, H. Frey, H. Pohlit, Chem. 2020. DOI: 10.1002/chem.201905310.
"pH-Responsive Protein Nanoparticles via Conjugation of Degradable PEG to the Surface of Cytochrome c"
E. Steiert, J. Ewald, A. Wagner, U. A. Hellmich, H. Frey, P. R. Wich, Polym. Chem. 2020, 11, 551-559. DOI: 10.1039/C9PY01162E

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Dr. Tobias Johann

Contact
Office Tel.: +49 (0)6131 39 26269
Lab Tel.: +49 (0)6131 39 26273
Email tobias.johann(at)uni-mainz.de

 

 

Research Topic

Multi-functional Polyether, Polymers for metal chelation, Polymerization kinetics and simulation

 

Interests

Multi-functional Poly(ethylene glycol)

NMR kinetic studies

Publications

[1] "Kinetics of Anionic Living Copolymerization of Isoprene and Styrene Using in Situ NIR Spectroscopy: Temperature Effects on Monomer Sequence and Morphology"
M. Steube, T. Johann, M. Plank, S. Tjaberings, A. H. Gröschel, M. Gallei, H. Frey and A. H.E. Müller, Macromolecules 2019, 52 (23), 9299-9310. DOI: 10.1021/acs.macromol.9b01790.
[2] "Tapered Copolymers of Styrene and 4-Vinylbenzocyclobutene via Carbanionic Polymerization of Crosslinkable Polymer Films"
D. Leibig, M. Messerle, T. Johann, C. Moers, F. Kaveh, H.-J. Butt, D. Vollmer, A. H.E Müller, H. Frey, J. Polym. Sci. Pol. Chem. 2019, DOI: 10.1002/pola.29515
[3] "Multi-olefin containing polyethers and trizazolinediones: a powerful alliance"
T. Johann, H.A. Houck, T. Dinh, U. Kemmer-Jonas, F. Du Prez, H. Frey, Polym. Chem. 2019, 10, 4699-4708, DOI: 10.1039/C9PY00718K
[4] "Multi-Functional Fe(III)-Binding Polyethers from Hydroxamic Acid-Based Epoxide Monomers"
T. Johann, U. Kemmer-Jonas, R.D. Barent, H. Frey, Macromol. Rapid Commun. 2019, 1900282, DOI: 10.1002/marc.201900282
[5] "A general concept for the introduction of hydroxamic acids into polymers"
T. Johann, J. Keth, M. Bros, H. Frey, Chem. Sci. 2019, 10, 7009-7022. DOI: 10.1039/c9sc02557j
[6] "Effect of the Substituent Position on the Anionic Copolymerization of Styrene Derivatives: Experimental Results and Density Functional Theory Calculations"
T. Johann, D. Leibig, E. Grune, A. H. E. Müller, H. Frey, Macromolecules 2019, 52, 4545. DOI: 10.1021/acs.macromol.9b00747
[7] "Isoprene/Styrene Tapered Multiblock Copolymers with up to 10 Blocks: Synthesis, Phase Behaviour, Order and Mechanical Properties", M. Steube, T. Johann, E. Galanos, M. Appold, C. Rüttiger, M. Mezger, M. Gallei, A. H.E. Müller, G. Floudas, H. Frey, Macromolecules 2018, 51, 10246–10258. DOI:10.1021/acs.macromol.8b01961.
[8] "One-Step Block Copolymer Synthesis versus Sequential Monomer Addition: A Fundamental Study Reveals That One Methyl Group Makes a Difference" E. Grune, T. Johann, M. Appold, C. Wahlen, J. Blankenburg, D. Leibig, A. H. E. Müller, M. Gallei, H. Frey, Macromolecules, 2018,51, 3527. DOI: 10.1021/acs.macromol.8b00404.
[9] "Copolymerization of Isoprene with p-Alkylstyrene Monomers: Disparate Reactivity Ratios and the Shape of the Gradient" P. von Tiedemann, J. Blankenburg, K. Maciol, T. Johann, A. H.E. Müller, H. Frey, Macromolecules 2019, 52, 3, 796-806. DOI: 10.1021/acs.macromol.8b02280.
[10] "Polymerization of long chain alkyl glycidyl ethers: a platform for micellar gels with tailor-made melting points", P. Verkoyen, T. Johann, J. Blankenburg, C. Czysch, H. Frey, Polym. Chem. 2018, 43, 6641. DOI: 10.1039/C8PY01312H
[11] "Catechol Acetonide Glycidyl Ether (CAGE): A Functional Epoxide Monomer for Linear and Hyperbranched Multi-Catechol Functional Polyether Architectures" K. Niederer, C. Schüll, D. Leibig, T. Johann, H. Frey, Macromolecules 2016, 49, 1655–1665. DOI: 10.1021/acs.macromol.5b02441.
[12] "Tunable dynamic hydrophobic attachment of guest molecules in amphiphilic core–shell polymers" J. Reichenwallner, A. Thomas, L. Nuhn, T. Johann, A. Meister, H. Frey, D. Hinderberger, Polym. Chem. 2016, 7, 5783–5798. DOI: 10.1039/C6PY01335J.
[13] "Two-photon absorption dye based on 2,5-bis(phenylacrylonitrile)thiophene with aggregration enhanced fluorescence" T. Johann, K. Schmidt, P. Prabhakaran, R. Zentel, K.-S. Lee, Opt. Mater. Express 2016, 6, 1296. DOI: 10.1364/OME.6.001296.

 

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Dr. Olga Linker

Contact
Office Tel.: +49 (0)6131 39 25700
Lab Tel.: +49 (0)6131 39 26273
Email ollinker@uni-mainz.de

 

 

Research Topic

Non-covalent crosslinked polyether.

 

Interests

Multi-Functional Poly(ethylene glycol)

 

Publications

[1] "Synthesis of single crystalline sub-micron rutile TiO 2 rods using hydrothermal treatment in acidic media" P. Leidich, O. Linker, M. Panthöfer, W. Tremel, CrystEngComm 2014, 16, 8486–8491. DOI: 10.1039/C4CE00971A.
[2] "Degradation kinetics of acid-sensitive hydrogels" S. Kim, O. Linker, K. Garth, K. R. Carter, Polym. Degrad. Stab. 2015, 121, 303–310. DOI: 10.1016/j.polymdegradstab.2015.09.014.

 

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