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Prof. Dr. Thomas Junkers - UHasselt

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<strong>Prof</strong>. <strong>Dr</strong>. <strong>Thomas</strong> <strong>Junkers</strong><br />

Institute for Materials Research<br />

Organic and Biopolymer Chemistry<br />

Universiteit Hasselt<br />

Agoralaan, Gebouw D<br />

B-3590 Diepenbeek, Belgium<br />

thomas.junkers@uhasselt.be<br />

tel. 011 26 8318<br />

B-6287-2008


Curriculum Vitae <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

Work Experience<br />

Jun 2010 Visiting <strong>Prof</strong>essor at the Université Aix-Marseille I (France) in<br />

the group “Chemie Radicalaire Organique et Polymere de<br />

Spécialité” of <strong>Dr</strong>. Didier Gigmes and <strong>Prof</strong> Denis Bertin<br />

since Mar 2010 Docent at the Universiteit Hasselt, Belgium<br />

Jul 2008 – Feb 2010 Senior Research Scientist (“Habilitand”) in the group of <strong>Prof</strong>.<br />

Christopher Barner-Kowollik for Preparative Macromolecular<br />

Chemistry, Institute for Chemical Technology and Polymer<br />

Chemistry, Karlsruhe University / Karlsruhe Institute of<br />

Technology<br />

Jul 2006 – Jun 2008 Research Associate at the Centre for Advanced Macromolecular<br />

Design, School of Chemical Sciences and Engineering,<br />

University of New South Wales, Sydney with <strong>Prof</strong>. Christopher<br />

Barner-Kowollik and <strong>Prof</strong>. Tom Davis<br />

Apr 2001 – Jun 2006 Employment as research assistant at the Institute for Physical<br />

Chemistry of Göttingen University, from August 2002 on as<br />

research associate<br />

Scientific Education<br />

May 2006 Completion of PhD work on the topic of ”Novel Single Pulse –<br />

Pulsed Laser Polymerization Methods for the Determination of Chain–<br />

Length Dependent Termination Kinetics in Conventional and<br />

Controlled Free–Radical Polymerization”, under supervision of <strong>Prof</strong>.<br />

<strong>Dr</strong>. Michael Buback (”summa cum laude”)<br />

Sep 2003 – May 2006 Member of the DFG-supported graduate school 782<br />

“Spectroscopy and dynamics of molecular aggregates, chains<br />

and coils “<br />

Jan – Mar 2005 Research stay at the Centre for Advanced Macromolecular<br />

Design, University of New South Wales in Sydney<br />

Sep 2002 Start of PhD-thesis work at the Institute for Physical Chemistry<br />

of Göttingen University under supervision of <strong>Prof</strong>. <strong>Dr</strong>. Michael<br />

Buback<br />

Jun 2002 Graduation in chemistry (Diploma, eq. to Msc)<br />

Jul 2001 – Jun 2002 Diploma thesis work on the topic “Terminierungskinetik der<br />

radikalischen Polymerisation von Methylmethacrylat bis zu hohen<br />

Umsätzen“ under supervision of <strong>Prof</strong>. <strong>Dr</strong>. Michael Buback<br />

Oct 1997 Enrollment as a regular student at the University Göttingen.<br />

2 | 8


Curriculum Vitae <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

Membership&Commitees<br />

since Apr 2010 Belgian Polymer Group<br />

since Oct 2009 Editorial board of the public-access journal „polymers“<br />

Deutscher Hochschulverband<br />

Sep 2009 – Aug 2010 Treasurer of the Karlsruher Chemischen Gesellschaft (KChG,<br />

GDCh Ortsgruppe Karlsruhe)<br />

since Aug 2009 Member of the Subcommittee on Modelling of Polymerization<br />

Kinetics and Processes of the IUPAC Polymer Division<br />

since 2008 Member of the Gesellschaft Deutscher Chemiker (GDCh)<br />

3 | 8


List of publications <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

Peer Reviewed Journal Articles<br />

[49] ” RAFT Kinetics Revisited: Revival of the RAFT Debate”<br />

T. <strong>Junkers</strong>, J. Polym. Sci. – Polym. Chem. 2011, submitted.<br />

[48] ”Quantitative Comparison of the Mesitoyl vs. the Benzoyl Fragment in Photoinitiation:<br />

A Question of Origin”<br />

D. Voll, T. <strong>Junkers</strong>, C. Barner-Kowollik, Macromolecules 2011, in press.<br />

[47] ”Embedding Multiple Site-Specific Functionalities into Polymer Chains via Nitrone-<br />

Mediated Radical Coupling (NMRC) Reactions”<br />

E.H.H. Wong, M.H. Stenzel, T. <strong>Junkers</strong>, C. Barner-Kowollik, J. Polym. Sci. – Polym.<br />

Chem. 2011, 49, 2118–2126.<br />

[46] ”Nitrone-Mediated Radical Coupling (NMRC) Reactions: A New Synthetic Tool<br />

Exemplified on Dendrimer Synthesis”<br />

E.H.H. Wong, O. Altintas, M.H. Stenzel, C. Barner-Kowollik, T. <strong>Junkers</strong>, Chem.<br />

Commun. 2011, 47, 5491-5493.<br />

[45] “Nitrones in Synthetic Polymer Chemistry”<br />

E.H.H. Wong, T. <strong>Junkers</strong>, C. Barner-Kowollik, Polym. Chem. 2010, 2, 1008-1017.<br />

[44] ”On the Kinetic and Mechanistic Similarity between RAFT Intermediate and Acrylate<br />

Midchain Radicals”<br />

C. Barner-Kowollik, T. <strong>Junkers</strong>, J. Polym. Sci. – Polym. Chem. 2010, 49, 1293-1297.<br />

[43] “Clicking Polymers or Just Efficient Linking: What Makes the Difference?”<br />

C. Barner-Kowollik, F.E. Du Prez, P. Espeel, C.J. Hawker, T. <strong>Junkers</strong>, H. Schlaad, W.<br />

Van Camp, Angew. Chem. 2011, 50, 60-62.<br />

[42] “Determination of Propagation Rate Coefficients for Methyl and 2-Ethylhexyl Acrylate<br />

via High Frequency PLP-SEC up to Elevated Temperatures under Consideration of the<br />

Impact of Chain Branching”<br />

T. <strong>Junkers</strong>, M. Schneider-Baumann, S.P.S. Koo, P. Castignolles, C. Barner-Kowollik,<br />

Macromolecules 2010, 43, 10427-10434.<br />

[41] “Control of Methyl Methacrylate Radical Polymerization via Enhanced Spin Capturing<br />

Polymerization (ESCP)”<br />

L. Zang, E.H.H. Wong, C. Barner-Kowollik, T. <strong>Junkers</strong>, Polymer 2010, 51, 3821–<br />

3825.<br />

[40] “Reducing the Degree of Branching in Polyacrylates via Mid-Chain Radical Patching: A<br />

Quantitative Melt-State NMR Study”<br />

M. Gaborieau, S.P.S. Koo, P. Castignolles, T. <strong>Junkers</strong>, C. Barner-Kowollik,<br />

Macromolecules 2010, 43, 5492–5495.<br />

[39] “Determination of the Propagation Rate Coefficient of Acrylonitrile”<br />

T. <strong>Junkers</strong>, S.P.S. Koo, C. Barner-Kowollik, Polym. Chem. 2010, 1, 438– 441.<br />

[38] “Detailed Investigation of the Propagation Rate of Urethane Acrylates”<br />

C. Barner-Kowollik, F. Bennet, M. Schneider-Baumann, D. Voll, T. Rölle, T. Fäcke,<br />

M.S. Weiser, F.K. Bruder, T. <strong>Junkers</strong>, Polym. Chem. 2010, 1, 470-479.<br />

4 | 8


List of publications <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

[37] “Spin Capturing with „Clickable‟ Nitrones: Generation of Mikto-Armed Star Polymers”<br />

E.H.H. Wong, M.H. Stenzel, T. <strong>Junkers</strong>, C. Barner-Kowollik, Macromolecules 2010,<br />

43, 3785-3793.<br />

[36] “Spin Capturing with Nitrones: Radical Coupling Reactions with Concurrent<br />

Introduction of Midchain Functionality”<br />

E.H.H. Wong, C. Boyer, M.H. Stenzel, C. Barner-Kowollik, T. <strong>Junkers</strong>, Chem.<br />

Commun. 2010, 46, 1959-1961.<br />

[35] “Limitations of Radical Thiol-ene Reactions for Polymer-Polymer Conjugation”<br />

S. P. S. Koo, M. M. Stamenović, R. A. Prasath, A. J. Inglis, F. E. Du Prez, C. Barner-<br />

Kowollik, W. Van Camp, T. <strong>Junkers</strong>, J. Polym. Sci. – Polym. Chem. 2010, 48, 1699-<br />

1713.<br />

[34] “Mark Houwink Parameters for the Universal Calibration of Acrylate, Methacrylate and<br />

Vinyl Acetate Polymers Determined by Online Size-Exclusion Chromatography – Mass<br />

Spectrometry”<br />

T. Gründling, T. <strong>Junkers</strong>, M. Guilhaus, C. Barner-Kowollik, Macromol. Chem. Phys.<br />

2009, 211, 520-528.<br />

[33] “Synthesis of a Macromonomer Library from High-Temperature Acrylate<br />

Polymerization”<br />

A. M. Zorn, T. <strong>Junkers</strong>, C. Barner-Kowollik, Macromol. Rapid Commun. 2009, 30,<br />

2028–2035.<br />

[32] “Continuous ATRP Synthesis of Block-like Copolymers via Column Reactors: Design<br />

and Validation of a Kinetic Model”<br />

B. Dervaux, T. <strong>Junkers</strong>, C. Barner-Kowollik, F. E. Du Prez, Macromol. React. Eng.<br />

2009, 3, 529–538.<br />

[31] “Propagation Rate Coefficients of Isobornyl Acrylate, tert-Butyl Acrylate and 1-<br />

Ethoxyethyl Acrylate: A High Frequency PLP-SEC Study”<br />

B. Dervaux, T. <strong>Junkers</strong>, M. Schneider-Baumann, F.E. Du Prez, C. Barner-Kowollik, J.<br />

Polym. Sci. Polym. Chem. 2009, 47, 6641–6654.<br />

[30] “Optimum Reaction Conditions for the Synthesis of Macromonomers via High-<br />

Temperature Polymerization of Acrylates”<br />

T. <strong>Junkers</strong>, C. Barner-Kowollik, Macromol. Theory Simul. 2009, 18, 421–433.<br />

[29] “Formation Efficiency of ABA Blockcopolymers via Enhanced Spin Capturing<br />

Polymerization (ESCP): Locating the Alkoxyamine Function”<br />

T. <strong>Junkers</strong>, E. H. H. Wong, M. H. Stenzel, C. Barner-Kowollik, Macromolecules<br />

2009, 42, 5027-5035.<br />

[28] “Propagation and Termination Kinetics of the Butyl Acrylate Dimer in Free-Radical<br />

Polymerization Studied by Pulsed Laser Polymerization Techniques”<br />

M. Buback, T. <strong>Junkers</strong>, M. Müller, Polymer 2009, 50, 3111-3118.<br />

0B[27]<br />

“Determination of Vinyl Acetate Propagation Rate Coefficients via High Frequency<br />

Pulsed Laser Polymerization”<br />

T. <strong>Junkers</strong>, D. Voll, C. Barner-Kowollik, e-polymers 2009, 076.<br />

1<br />

B[26] “Quantifying the Efficiency of Photo-Initiation Processes in Methyl Methacrylate Free<br />

Radical Polymerization via Electrospray Ionization Mass Spectrometry”<br />

F. Günzler, E. H. H. Wong, S. P. S. Koo, T. <strong>Junkers</strong>, C. Barner-Kowollik,<br />

Macromolecules 2009, 42, 1488-1493.<br />

5 | 8


List of publications <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

[25] “Studying the Mechanism of Thioketone Mediated Polymerization (TKMP) via<br />

Electrospray Ionization Mass Spectrometry”<br />

F. Günzler, T. <strong>Junkers</strong>, C. Barner-Kowollik, J. Polym. Sci. Polym. Chem. 2009, 47,<br />

1864-1876.<br />

2B[24]<br />

“The Kinetics of Enhanced Spin Capturing Polymerization (ESCP): Influence of the<br />

Nitrone Structure”<br />

E. H. H. Wong, M. H. Stenzel, T. <strong>Junkers</strong>, C. Barner-Kowollik, J. Polym. Sci. Polym.<br />

Chem. 2009, 47, 1098-1107.<br />

3B[23]<br />

“Quantitative Product Spectrum Analysis of Poly(Butyl Acrylate) via Electrospray<br />

Ionization Mass Spectrometry”<br />

S. P. S. Koo, T. <strong>Junkers</strong>, C. Barner-Kowollik, Macromolecules 2009, 42, 62-69.<br />

[22] “Pushing the Limit: Pulsed Laser Polymerization of Butyl Acrylate at 500 hz”<br />

C. Barner-Kowollik, F. Günzler, T. <strong>Junkers</strong>, Macromolecules 2008, 41, 8971–8973.<br />

[21] “A Study into the Stability of 3,6-Dihydro-2H-thiopyran Rings: Key Linkages in the<br />

RAFT Hetero Diels-Alder Click Concept”<br />

S. Sinnwell, C. V. Synatschke, T. <strong>Junkers</strong>, C. Barner-Kowollik, Macromolecules.<br />

2008, 41, 7901-7912.<br />

4B[20]<br />

“The Role of Mid-chain Radicals in Acrylate Free Radical Polymerization: Branching and<br />

Scission” (Cover page article)<br />

T. <strong>Junkers</strong>, C. Barner-Kowollik, J. Polym. Sci. Polym. Chem. 2008, 46, 7585–7605.<br />

[19] “Enhanced Spin Capturing Polymerization: An Efficient and Versatile Protocol for<br />

Controlling Molecular Weight Distributions”<br />

E. H. H. Wong, T. <strong>Junkers</strong>, C. Barner-Kowollik, J. Polym. Sci. Polym. Chem. 2008,<br />

46, 7273-7279.<br />

[18] “Controlling the Fate of Midchain Radicals in Acrylate Polymerization”<br />

T. <strong>Junkers</strong>, Aust. J. Chem. 2008, 61, 646.<br />

[17] “Self-Directed Formation of Uniform Unsaturated Macromolecules from Acrylate<br />

Monomers at High Temperatures”<br />

T. <strong>Junkers</strong>, F. Bennet, S. P. S. Koo, C. Barner-Kowollik, J. Polym. Sci. Polym. Chem.<br />

2008, 46, 3433-3437.<br />

[16] “Laser Induced Marking of Polymer Chains with Radical Spin Traps”<br />

T. <strong>Junkers</strong>, E. H. H. Wong, Z. Szablan, T. P. Davis, M. H. Stenzel, C. Barner-<br />

Kowollik, Macromol. Rapid. Commun. 2008, 29, 503-510.<br />

[15] “PLP labelling in ESR spectroscopic analysis of secondary and tertiary acrylate<br />

propagating radicals”<br />

M. Buback, P. Hesse, T. <strong>Junkers</strong>, T. Sergeeva, T. Theis, Macromolecules 2008, 41,<br />

288-291.<br />

[14] “Chain-Length-Dependent Termination in Acrylate Radical Polymerization Studied via<br />

Pulsed-Laser-Initiated RAFT Polymerization”<br />

M. Buback, P. Hesse, T. <strong>Junkers</strong>, T. Theis, P. Vana, Aust. J. Chem. 2007, 60, 779-787.<br />

[13] “Suppression of midchain-radical side reactions via chain-transfer polymerization: An<br />

ESI-MS study”<br />

T. <strong>Junkers</strong>, S. P. S. Koo, M. H. Stenzel, T. P. Davis, C. Barner-Kowollik,<br />

Macromolecules 2007, 40, 8906-8912.<br />

6 | 8


List of publications <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

[12] “Mapping photolysis product radical reactivities via soft ionization mass spectrometry<br />

in acrylate, methacrylate and itaconate systems”<br />

Z. Szablan, T. <strong>Junkers</strong>, S. P. S. Koo, T. M. Lovestead, M. H. Stenzel, T. P. Davis,<br />

C. Barner-Kowollik, Macromolecules 2007, 40, 6820-6833.<br />

[11] “Thioketone–mediated polymerization of butyl acrylate: Controlling free-radical<br />

polymerization via a dormant radical species”<br />

T. <strong>Junkers</strong>, M. H. Stenzel, T. P. Davis, C. Barner-Kowollik, Macromol. Rapid<br />

Commun. 2007, 28, 746-753.<br />

5B[10]<br />

“Termination kinetics of tert-butyl methacrylate and of n-butyl methacrylate free-radical<br />

bulk homopolymerizations”<br />

M. Buback, T. <strong>Junkers</strong>, Macromol. Chem. Phys. 2006, 207, 1640-1650.<br />

[9] “Determination of addition and fragmentation rate coefficients in RAFT polymerization<br />

via time-resolved ESR spectroscopy after laser pulse initiation”<br />

M. Buback, P. Hesse, T. <strong>Junkers</strong>, P. Vana, Macromol. Rapid Commun. 2006, 27, 182-<br />

187.<br />

[8] “Mechanism of poly(methyl methacrylate) film growth during pulse laser deposition”<br />

E. Süske, T. Scharf, T. <strong>Junkers</strong>, M. Buback, H.-U. Krebs, J. Appl. Phys. 2006, 100,<br />

No. 014906.<br />

[7] “Free-radical polymerization kinetics of 2-acrylamido-2-methylpropanesulfonic acid in<br />

aqueous solution”<br />

S. Beuermann, M. Buback, P. Hesse, T. <strong>Junkers</strong>, I. Lacík, Macromolecules 2006, 39,<br />

509-516.<br />

[6] “Chain length dependent termination in butyl acrylate free–radical polymerization<br />

studied via stationary and pulsed laser initiated RAFT polymerization”<br />

T. <strong>Junkers</strong>, A. Theis, M. Buback, T. P. Davis, M. H. Stenzel, P. Vana, C. Barner-<br />

Kowollik, Macromolecules 2005, 38, 9497-9508.<br />

[5] “Laser single pulse initiated RAFT polymerization for assessing chain-length<br />

dependent radical termination kinetics”<br />

M. Buback, T. <strong>Junkers</strong>, P. Vana, Macromol. Rapid Commun. 2005, 26, 796-802.<br />

[4] ”PLP-ESR monitoring of mid-chain radicals in n-butyl acrylate polymerization”<br />

R. X. E. Willemse, A. M. van Herk, E. Panchenko, T. <strong>Junkers</strong>, M. Buback,<br />

Macromolecules 2005, 38, 5098-5103.<br />

[3] ”Tuning of cross-linking and mechanical properties of laser deposited poly(methyl<br />

methacrylate) films”<br />

E. Süske, T. Scharf, H.-U. Krebs, E. Panchenko, T. <strong>Junkers</strong>, M. Egorov, M. Buback,<br />

H. Kijewski, J. Appl. Phys. 2005, 97, 6, No. 063501.<br />

[2] ”Termination kinetics of di-n-butyl itaconate free-radical polymerization studied via the<br />

SP-PLR-ESR technique” (Cover page article)<br />

M. Buback, M. Egorov, T. <strong>Junkers</strong>, E. Panchenko, Macromol. Chem. Phys. 2005, 206,<br />

333-341.<br />

[1] ”Free-radical termination kinetics studied using a novel SP-PLP-ESR technique “<br />

M. Buback, M. Egorov, T. <strong>Junkers</strong>, E. Panchenko, Macromol. Rapid Commun. 2004,<br />

25, 1004-1009.<br />

7 | 8


List of publications <strong>Prof</strong>. <strong>Dr</strong>. T. <strong>Junkers</strong><br />

Books/Book contributions<br />

[3] “The RAFT process as a kinetic tool: Accessing fundamental parameters of free radical<br />

polymerization”<br />

T. <strong>Junkers</strong>, T. M. Lovestead, C. Barner-Kowollik in “Handbook of RAFT Polymerization”,<br />

C. Barner-Kowollik, Ed., Wiley-VCH, Weinheim, 2008, ISBN 978-3-527-31924-4, p.<br />

105-150.<br />

[2] “Pulsed-laser initiated RAFT polymerization”<br />

M. Buback, T. <strong>Junkers</strong>, P. Vana in "Controlled/Living Radical Polymerization: From<br />

Synthesis to Materials" (ACS Symposium Series), K. Matyjaszewski, Ed. 2006, 944,<br />

455.<br />

[1] “Novel Single Pulse – Pulsed Laser Polymerization Methods for the Determination of<br />

Chain–Length Dependent Termination Kinetics in Conventional and Controlled Free–<br />

Radical Polymerization”<br />

T. <strong>Junkers</strong>, PhD Thesis, Sierke Verlag, Göttingen, 2006, ISBN 3-933893-51-8.<br />

Miscellaneous<br />

[3] Book Review of „Handbook of Vinyl Polymers: Radical Polymerization, Process, and<br />

Technology‟ by M. K. Mishra and Y. Yagci<br />

C. Barner-Kowollik, T. <strong>Junkers</strong>, Macromol. Chem. Phys. 2009, 210, 1766.<br />

[2] Book Review of „Polymer Chemistry‟ by R. P. C. Hiemenz and T. P. Lodge<br />

C. Barner-Kowollik, T. <strong>Junkers</strong>, Macromol. Chem. Phys. 2007, 208, 1832.<br />

[1] “Pulsed laser initiated RAFT polymerization”<br />

M. Buback, T. <strong>Junkers</strong>, P. Vana, ACS Polymer Preprints (ACS, Division of Polymer<br />

Chemistry) 2005, 46, 362-363.<br />

Conference Presentations<br />

Oral presentation given at Australasian Polymer Symposium 2011 Coffs Harbour,<br />

12th <strong>Dr</strong>esden Polymer Discussion "New developments in polymer synthesis: Control<br />

of structure and functionality" 2010 <strong>Dr</strong>esden, Germany, Bunsen-Kolloquium "Kinetics<br />

of Radical Polymerization: The Foundation of Novel Materials and Processes" 2010<br />

Göttingen, Germany, 13th International IUPAC Conference on Polymers and Organic<br />

Chemistry 2009 Montreal, Canada, International Symposium on Microstructural<br />

Control in Free-Radical Polymerization 2008 Clausthal, Germany, Polymer Synthesis<br />

2008 Cancun, Mexico, 29th Australasian Polymer Symposium 2007 Hobart, Australia<br />

In total over 40 presentations given on international conferences<br />

Invited research seminars given at University of Sydney, Australian National<br />

University Canberra, BASF, Université de Provence Aix-Marseille, Universität<br />

Potsdam, TU Darmstadt, Université de Liége, Universiteit Gent, TU Eindhoven,<br />

University of Western Sydney, Universität Göttingen<br />

8 | 8

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