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Dr. Yungwan Kwak

Carnegie Mellon University
4400 Fifth Avenue
Mellon Institute
Pittsburgh, PA 15213
(412) 268-3208
ywkwak@andrew.cmu.edu


Education

2003-2006 Ph. D., Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University (Japan)
Ph. D. Thesis "Kinetics Studies on Living Radical Polymerizations"
Research Supervisor: Professor Takeshi Fukuda
2001-2003 M. S., Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University (Japan)
1992-2000 B. S., Polymer Science and Engineering, Sunchon National University (Republic of Korea)

Experience

2006-Present

Research Associate, Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University (USA)

Research Supervisor: Professor Krzysztof Matyjaszewski
2006-2006 Research Associate, Institute for Chemical Research, Kyoto University (Japan)
2000-2001 Research Student, Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University (Japan)
1998-1999 Exchange Student (Miyazaki University, Japan).
1998-1999

Military Service (Korean Army)

Scholarships

2000-2006

Japanese Government (MEXT) Research Student Scholarships, 2000-2006

Research Area

Kinetics of Living Radical Polymerizations (LRPs) including NMP, ATRP, RAFT, and Iodide-, Germanium-, Organotellurium-, Organostibine-, and Organobismuth-Mediated Polymerizations.
Designing New CRP Techniques.
Polymer synthesis using various CRP techniques.
Photo-Polymerization.

Ligand Synthesis for ATRP.

Research Interests

Kinetics of LRPs, Polymer Brushes, Organic/Inorganic Hybrid Materials, Self-Assembly by Block Copolymers, and Biopolymers

Research Interests Experience in Instrumental Technique

GPC, GC, ESR, NMR, UV/VIS, FT-IR, MALDI-TOF-MS, SEM, TEM, DSC, Contact Angle Measurement, CV, Glove Box

Homepage (Researcher ID)

Publications (peer-reviewed) (> 800 total citations by ISI Web of Science)

1. Kwak, Y.; Yamamura Y.; Matyjaszewski, K. “ATRP of Styrene and Methyl Methacrylate with Less Efficient Catalysts and with Alkyl Pseudohalides as Initiators / Chain Transfer Agents” Macromol. Chem. Phys. 2010, ASAP.
2. Nicolay, R.; Kwak, Y.; Matyjaszewski, K. “ARGET ATRP with Alkyl Pseudohalides as Initiators / Chain Transfer Agents and ppm Cu Catalyst: a Green Process to Produce Well Defined High Molecular Weight (co)Polymers” Angew. Chem., Int. Ed. 2010, 49, 541-544.
3. Huang, C.; Nicolay, R.; Kwak, Y.; Chang, F.; Matyjaszewski, K. “Homopolymerization and Block Copolymerization of N-Vinylpyrrolidone by ATRP and RAFT with Haloxanthate Inifers” Macromolecules 2009, 42, 8198–8210.
4. Kwak, Y.; Nicolaÿ, R.; Matyjaszewski, K. “Simple and Efficient Synthesis of RAFT Chain Transfer Agents via Atom Transfer Radical Addition-Fragmentation” Macromolecules, 2009, 42, 3738-3742.
5. Kwak, Y.; Matyjaszewski, K. “ARGET ATRP of methyl methacrylate in the presence of nitrogen-based ligands as reducing agents”Polym. Int. 2009, 58, 242-247.
6. Nicolaÿ, R.; Kwak, Y.; Matyjaszewski, K. “Synthesis of poly(vinyl acetate) block copolymers by successive RAFT and ATRP with a bromoxanthate iniferter” Chemical Communication 2008, 5336-5338.
7. Kwak, Y.; Nicolaÿ, R.; Matyjaszewski, K. “Concurrent ATRP/RAFT of Styrene and Methyl Methacrylate with Dithioesters Catalyzed by Copper(I) Complexes” Macromolecules 2008, 41,6602.
8. Kwak, Y.; Matyjaszewski, K. “Effect of Initiator and Ligand Structures on ATRP of Styrene and Methyl Methacrylate Initiated by Alkyl Dithiocarbamate” Macromolecules 2008, 41, 6627.
9. Tang, W.; Kwak, Y.; Braunecker, W.; Tsarevsky, N. V.; Coote, M. L.; Matyjaszewski, K. “Understanding Atom Transfer Radical Polymerization: Effect of Ligand and Initiator Structures on the Equilibrium Constants” Journal of the American Chemical Society 2008, 130, 10702.
10. Nicolaÿ, R.; Kwak, Y.; Matyjaszewski, K. “Dibromotrithiocarbonate Iniferter for Concurrent ATRP and RAFT Polymerization. Effect of Monomer, Catalyst, and Chain Transfer Agent Structure on the Polymerization Mechanism.” Macromolecules 2008, 41, 4585.
11. Kayahara, E.; Yamago, S.; Kwak, Y.; Goto, A.; Fukuda, T. “Optimization of Organotellurium Transfer Agents for Highly Controlled Living Radical Polymerization” Macromolecules 2008, 41, 527. 
12. Matyjaszewski, K.; Tsarevsky, N. V.; Braunecker, W. A.; Dong, H.; Huang, J.; Jakubowski, W.; Kwak, Y.; Nicolay, R.; Tang, W.; Yoon, J. A. “Role of Cu0 in Controlled/"Living" Radical Polymerization” Macromolecules 2007, 40, 7795.
13.

Kwak, Y.; Tezuka, M.; Goto, A.; Fukuda, T.; Yamago, S. “Kinetic Study on Role of Ditelluride in Organotellurium-Mediated Living Radical Polymerization (TERP)" Macromolecules 2007, 40, 1881.

14.

Goto, A.; Zushi, H.; Hirai, N.; Wakada, T.; Kwak, Y.; Fukuda, T. “Germanium- and Tin-Catalyzed Living Radical Polymerizations of Styrene and Methacrylates” Macromolecular Symposia 2007, 248, 126.

15.

Yamago, S.; Kayahara, E.; Kotani, M.; Ray, B.; Kwak, Y.; Goto, A.; Fukuda, T. “Highly Controlled Living Radical Polymerization through Dual Activation of Organobismuthines” Angewandte Chemie 2007, 119, 1326.

16.

Kwak, Y.; Goto, A.; Fukuda, T.; Kobayashi, Y.; Yamago, S. “A Systematic Study on Activation Processes in Organotellurium-Mediated Living Radical Polymerizations of styrene, methyl methacrylate, methyl acrylate, and vinyl acetate” Macromolecules 2006, 39, 4671.

17.
Kubo, K.; Goto, A.; Sato, K.; Kwak, Y.; Fukuda, T. “Kinetic Study on Reversible Addition-Fragmentation Chain Transfer (RAFT) Process for Block and Random Copolymerizations of Styrene and Methyl Methacrylate” Polymer 2005, 46, 9762.
18.

Kwak, Y.; Goto, A.; Fukuda, T.; Yamago, S.; Ray, B. “Mechanism and Kinetics of Organostibine-Mediated Living Radical Polymerization of Styrene” Zeitschrift fur Physikalische Chemie (Munchen) 2005, 219, 283.

19.

Yamago, S.; Ray, B.; Iida, K.; Yoshida, J.; Tada, T.; Yoshizawa, K.; Kwak, Y.; Goto, A.; Fukuda, T. “Highly Versatile Organostibine Mediators for Living Radical Polymerization” Journal of the American Chemical Society 2004, 126, 13908.

20.

Kwak, Y.; Goto, A.; Koichi, K.; Yukio, S.; Fukuda, T. “Characterization of Low-Mass Model 3-Arm Stars Produced in Reversible Addition-Fragmentation Chain Transfer (RAFT) Process” Macromolecules 2004, 37, 4434.

21.

Kwak, Y.; Goto, A.; Fukuda, T. “Rate Retardation in Reversible Addition-Fragmentation Chain Transfer (RAFT) Polymerization: Further Evidence for Cross-Termination Producing 3-Arm Star Chain” Macromolecules 2004, 37, 1219.

22.

Wang, A. R.; Zhu, S.; Kwak, Y.; Goto, A.; Fukuda, T.; Monteiro, M. S. “A Difference of Six Orders of Magnitude: A Reply to 'the Magnitude of the Fragmentation Rate Coefficient” Journal of Polymer Science, Part A: Polymer Chemistry 2003, 41, 2833.

23.

Goto, A.; Kwak, Y.; Fukuda, T.; Yamago, S.; Iida, K.; Nakajima, M.; Yoshida, J. “Mechanism-Based Invention of High-Speed Living Radical Polymerization Using Organotellurium Compounds and Azo-Initiators” Journal of the American Chemical Society 2003, 125, 8720.

24.

Fukuda, T.; Goto, A.; Kwak, Y.; Yoshikawa, C.; Ma, Y. “Penultimate Unit Effects in Free Radical Copolymerization” Macromolecular Symposia 2002, 182, 53.

25.

Goto, A.; Kwak, Y.; Yoshikawa, C.; Tsujii, Y.; Sugiura, Y.; Fukuda, T. “Comparative Study on Decomposition Rate Constants for Some Alkoxyamines” Macromolecules 2002, 35, 3520.

26.
Kwak, Y.; Goto, A.; Tsujii, Y.; Murata, Y.; Komatsu, K.; Fukuda, T. “A Kinetic Study on the Rate Retardation in Radical Polymerization of Styrene with Addition-Fragmentation Chain Transfer” Macromolecules 2002, 35, 3026.

Book Chapters/Review

1. Kwak, Y.; Nicolaÿ, R.; Matyjaszewski, K. “Synergistic Interaction between ATRP and RAFT: Taking the Best of Each World” Aust. J. Chem. 2009, 62, 1384-1401.
2. Goto, A.; Zushi, H.; Kwak, Y.; Fukuda, T. “Germanium- and Tin-Catalyzed Living Radical Polymerizations of Styrene” ACS Symp. Ser. 2006, 944, 595-603.
3. Fukuda, T.; Yoshikawa, C.; Kwak, Y.; Goto, A.; Tsujii, Y. “Mechanisms and Kinetics of Living Radical Polymerization: Absolute Comparison of Theory and Experiment” ACS Symp. Ser. 2003, 854, 24-39.

Patent

1. Matyjaszewski, K.; Kwak, Y.; Nicolay, R. “Transition Metal-Mediated Controlled Radical Polymerization Processes” PCT Int. Appl. 2009, WO 2009111725.

List of Symposium Proceedings/Preprints

1. Kwak, Y.; Matyjaszewski, K. “Reversible addition-fragmentation chain transfer (RAFT) polymerization activated by copper catalyst” Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2008, 49(2), 264.
2. Tsarevsky, N. V.; Braunecker, W.A.; Tang, W.; Kwak, Y.; Matyjaszewski, K. “Catalyst performance in atom transfer radical polymerization: a closer look” (American Chemical Society, Division of Polymer Chemistry) 2008, 49(2), 44.
3. Kwak, Y.; Matyjaszewski, K. “Atom transfer radical polymerizations of styrene and methyl methacrylate using alkyl diethyldithiocarbamate initiators” Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2008, 49(1), 418.
4. Tang, W.; Dong, H.;Kwak, Y.; Matyjaszewski, K. “Atom transfer radical polymerization in the presence of Cu0 - mechanism and kinetics study” Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2007, 48(2), 262.
5. Tang, W.; Kwak, Y.; Tsarevsky, N. V.; Matyjaszewski, K. “Effect of Ligand and Initiator Structures on the equilibrium constants in ATRP”. Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2007, 48(1), 392
6. Kwak, Y.; Goto, A.; Fukuda, T.; Yamago, S. “Kinetic Studies on Activation Processes for Organotellurium- and Organostibine-Mediated Living Radical Polymerizations” Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2005, 46, 272.
7.

Goto, A.; Zushi, H.; Kwak, Y.; Fukuda, T. “Germanium- and tin-catalyzed living radical polymerizations of styrene” Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2005, 46, 245.

8.

Goto, A.; Kwak, Y.; Tsujii, Y.; Fukuda, T. “Kinetic Study on the Rate Retardation in Radical Polymerization of Styrene with Addition-Fragmentation Chain Transfer” Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 2002, 43, 311.

Presentations (International Conferences)

1 “Reversible addition-fragmentation chain transfer (RAFT) polymerization activated by copper catalyst” 236th ACS National Meeting, Philadelphia, PA, August 19, 2008.
2. “Atom transfer radical polymerizations of styrene and methyl methacrylate using alkyl diethyldithiocarbamate initiators” 235th ACS National Meeting, New Orleans, LA, April 6, 2008.
3. “Kinetic Study on Activation Processes for Organotellurium- and Organostibine-Mediated Living Radical Polymerizations” 230th ACS National Meeting, Washington, DC, August 30, 2005.
4.

“Kinetic Study on Activation Process in Organotellurium-Mediated Living Radical Polymerization” 40th IUPAC International Symposium on Macromolecules, World Polymer Conference MACRO 2004, Paris, France, July 8, 2004.

5.

“Kinetic Study on Activation Process in Organotellurium-Mediated Living Radical Polymerization” The Second Trilateral Workshop on Organic Chemistry, Kyoto, Japan, September 4, 2004.

Presentations (Domestic Conferences, Japan)

1. “Kinetic Studies on Activation Processes for Organotellurium- and Organostibine-Mediated Living Radical Polymerizations” 54th SPSJ Annual Meeting, Yokohama, Japan, May 25–27, 2005.
2. “Characterization of Low-Mass Model 3-Arm Stars Produced in Reversible Addition-Fragmentation Chain Transfer (RAFT) Process” 53rd SPSJ Annual Meeting, Kobe, Japan, May 25–27, 2004.
3. “Kinetic Studies on Activation Mechanisms in Organotellurium-Mediated Living Radical Polymerization” 52nd SPSJ Symposium on Macromolecules, Yamaguchi, Japan, September 24–26, 2003.
4. “Kinetic Studies on the Activation Mechanisms in Organotellurium-Mediated Living Radical Polymerization” 52nd SPSJ Annual Meeting, Nagoya, Japan, May 28–30, 2003.
5. “A Kinetic Study on the Polymerization Rate in Reversible Addition-Fragmentation Chain Transfer (RAFT)-Based Living Radical Polymerization” 51st SPSJ Symposium on Macromolecules, Kyushyu, Japan, October 2–4, 2002.
6. “A Kinetic Study on the Polymerization Rate in Reversible Addition-Fragmentation Chain Transfer (RAFT)-Based Living Radical Polymerization” 51st SPSJ Annual Meeting, Yokohama, Japan, May 29–31, 2002.
7. “Kinetic Studies on Reversible Addition-Fragmentation Chain Transfer (RAFT)-Based Polymerization [I] Polymerization Rates of Styrene/MMA (Co)polymerizations” 50th SPSJ Annual Meeting, Osaka, Japan, May 23–25, 2001.

Presentations (Local meetings)

1. “ARGET ATRP with Low Cost Ligands and ppm Amounts of Catalyst” CRP Consortium Meeting, Carnegie Mellon University, Pittsburgh, PA, September 21–22, 2009.
2. “ATRP/RAFT: Taking the Best of Each World” CRP Consortium Meeting, Carnegie Mellon University, Pittsburgh, PA, March 30–31, 2009.
3. “Concurrent ATRP/RAFT of St and MMA with Dithioester Catalyzed by Copper(I) Complexes” CRP Consortium Meeting, Carnegie Mellon University, Pittsburgh, PA, October 6–7, 2008.
4. “ATRP and RAFT Process: Adding a Small Amount of Copper to RAFT Polymerization” CRP Consortium Meeting, Carnegie Mellon University, Pittsburgh, PA, March 31–April 1, 2008.
5. “Atom Transfer Radical Polymerization (ATRP) of Styrene and Methyl Methacrylate Using Novel Alkyl Diethyldithiocarbamate Initiators” CRP Consortium Meeting, Carnegie Mellon University, Pittsburgh, PA, October 8–9, 2007.

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