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The Winey Lab at the University of Pennsylvania employs a variety of experimental and computational tools to probe the structural and physical properties of advanced polymers. We are studying and designing functional polymers to improve ion and proton conductivity targeting a variety of energy applications. In polymer nanocomposites our current interests focus on nanoparticle dynamics across a range of time and length scales. Our newest project focuses on polymer-to-polymer upcycling to convert waste polyolefins to higher value polymers.
Recent Publications
I. M. Ogbu, Eli J. Fastow, W. Zhu, L. A. Wells, R. J. Chethalen, Vivek Nair, Z. R. Hinton, A. H. Balzer, W. Hu, E. Bryan Coughlin, Karen I. Winey*, and Marisa C. Kozlowski*, Macromolecules, 2024.
Eli Fastow, Roshni John Chethalen, E. Bryan Coughlin, and Karen I. Winey*, Giant, 17, 100231, 2024.
Determination of film thicknesses of metal oxides prepared by atomic layer deposition on SBA-15
Ching-Yu Wang, Ben T. Ferko, Kai Shen, Karen I. Winey, John M. Vohs, and Raymond J. Gorte*, Microporous and Mesoporous Materials, 366,112945, 2024.
Vehicular and Core–Shell Nanoparticle Diffusion in Attractive Entangled Polymer Melts
Kaitlin Wang and Karen I. Winey*, Macromolecules, 2024.
Chien-Hua Tu, Eli J. Fastow, Roshni John Chethalen, George V. Papamokos, E. Bryan Coughlin, & Karen I. Winey*, Macromolecules, 2024.
Nanoparticle Diffusion in Crowded Polymer Nanocomposite Melts
Kaitlin Wang and Karen I. Winey*. ACS Macro Letters, 13, 1192-1197, 2024.
Nanoparticle Diffusion in Crowded Polymer Nanocomposite Melts
Jou-Tsen Ou, Margaret K. Brown, Jason D. Kaff, Rhys W. Hughes, Dale L. Huber, Brent S. Sumerlin, Karen I. Winey, Mercedes K. Taylor*. ACS Applied Polymer Materials, 2024.
Vat photopolymerization of poly(styrene-b-isoprene-b-styrene) triblock copolymers
Ren H. Bean, Garvit Nayyar, Margaret K. Brown, Jianheng Wen, Yiqun Fu, Karen I. Winey, Christopher B. Williams, Timothy E. Long. Additive Manufacturing, 92, 104391, 2024.
Max S. Win, K. I. Winey* and Amalie L. Frischknecht*, Macromolecules, 56, 9905-9913, 2023.
pH-Mediated Size-Selective Adsorption of Gold Nanoparticles on Diblock Copolymer Brushes
Ye Chan Kim, Russell J. Composto*, and K. I. Winey*, ACS Nano, 17, 9224-9234, 2023.
ToF-SIMS Depth Profiling to Measure Nanoparticle and Polymer Diffusion in Polymer Melts
Kaitlin Wang, Russell J. Composto, and K. I. Winey*, Macromolecules, 56, 2277-2285, 2023.
Thiol–ene Click Chemistry Incorporates Hydroxyl Functionality on Polycyclooctene to Tune Properties
Roshni John Chethalen, Eli J. Fastow, E. Bryan Coughlin*, and Karen I. Winey*, ACS Macro Letters, 12, 107-112, 2023.
Research
The Role of Local Structure and Dynamics on
Proton and Hydroxide Transport in Ion-Conducting Polymers
Polyolefin Upcycling through Dehydrogenation & Functionalization
Bound Layer Exchange in Polymer Nanocomposite Melts
Conductivity in Nanostructured Precise Polymers
Nanoparticle Interactions and Nanoscale Transport in Polyelectrolyte Brushes