Nealey Group

Shuangjun Chen

Dr. Chen did his undergraduate study at Nanjing University of Technology in 2002 and got a PhD in polymer chemistry and physics in 2007 from Nanjing University, where, under the direction of Professor Gi Xue, he investigated the nanostructures of conjugated polymers. He became an associate professor at Nanjing University of Technology in 2010. Since September 2013, he has worked as a postdoc under Professor Nealey at the Pritzker School of Molecular Engineering at the University of Chicago.

Dr. Shuangjun Chen focused on the non-preferential bottom surface and top surface by using ultrathin polystyrene film for perpendicular nanopatterns of block copolymers, such as polystyrene-b-polymethyl methacrylate or polystyrene-b-poly-2-vinylpyridine. The more well-established BCP DSA process was developed around the principle of thermal annealing, which is the most reliable pathway to induce the self-assembly of block copolymers. Dr. Chen tried to understand the phase separation of bottom structures by turnover in the BCPs' perpendicular nanopatterns.

The Role of Water Volume Fraction on Water Adsorption in Anion Exchange Membranes

Gervasio Zaldivar, Ruilin Dong, Joan M Montes de Oca, Ge Sun, Riccardo Alessandri, Christopher G Arges, Shrayesh N Patel, Paul F Nealey, Juan J de Pablo, Macromolecules, 2025

Role of Crosslinking and Backbone Segmental Dynamics on Ion Transport in Hydrated Anion-Conducting Polyelectrolytes

Zhongyang Wang, Kai Wang, Christopher Eom, Yuxi Chen, Ge Sun, Mincheol Kim, Joan M Montes de Oca, Dongyue Liang, Kushal Bagchi, Shrayesh N Patel, Juan J de Pablo, Paul F Nealey, Advanced Functional Materials, 2025

IEC-Independent Coupling between Water Uptake and Ionic Conductivity in Anion-Conducting Polymer Films

Joan M Montes de Oca, Ruilin Dong, Gervasio Zaldivar, Ge Sun, Zhongyang Wang, Shrayesh N Patel, Paul F Nealey, Juan J de Pablo, Macromolecules, 2025

Water-mediated ion transport in an anion exchange membrane

Zhongyang Wang, Ge Sun, Nicholas HC Lewis, Mrinmay Mandal, Abhishek Sharma, Mincheol Kim, Joan M Montes de Oca, Kai Wang, Aaron Taggart, Alex B Martinson, Paul A Kohl, Andrei Tokmakoff, Shrayesh N Patel, Paul F Nealey, Juan J de Pablo. Nature Communications. 2025.

Directed self-assembly of block copolymer films on atomically-thin graphene chemical patterns

Chang, TH; Xiong, SS; Jacobberger, RM; Mikael, S; Suh, HS; Liu, CC; Geng, DL; Wang, XD; Arnold, MS; Ma, ZQ; Nealey, PF. Directed self-assembly of block copolymer films on atomically-thin graphene chemical patterns. Scientific Reports. 2016. Vol. 6, Pg. 31407.

Directed self-assembly of high-chi block copolymer for nano fabrication of bit patterned media via s

Xiong, S. S. Chapuis, Y. A. Wan, L. Gao, H. Li, X. Ruiz, R. Nealey, P. F.. Directed self-assembly of high-chi block copolymer for nano fabrication of bit patterned media via s. Nanotechnology. 2016. Vol. 27, Pg. 415601.

Directed Self-Assembly of Triblock Copolymer on Chemical Patterns for Sub-10-nm Nanofabrication via

Xiong, SS; Wan, L; Ishida, Y; Chapuis, YA; Craig, GSW; Ruiz, R; Nealey, PF. Directed Self-Assembly of Triblock Copolymer on Chemical Patterns for Sub-10-nm Nanofabrication via. ACS Nano. 2016. Vol. 10, Pg. 7855–7865.

Roadmap on optical metamaterials

Urbas, A. M. Jacob, Z. Dal Negro, L. Engheta, N. Boardman, A. D. Egan, P. Khanikaev, A. B. Menon, V. Ferrera, M. Kinsey, N. DeVault, C. Kim, J. Shalaev, V. Boltasseva, A. Valentine, J. Pfeiffer, C. Grbic, A. Narimanov, E. Zhu, L. X. Fan, S. H. Alu, A. Poutrina, E. Litchinitser, N. M. Noginov, M. A. MacDonald, K. F. Plum, E. Liu, X. Y. Nealey, P. F. Kagan, C. R. Murray, C. B. Pawlak, D. A. Smolyaninov, I. I. Smolyaninova, V. N. Chanda, D.. Roadmap on optical metamaterials. Journal of Optics. Vol. 18, Pg. 093005.

Post-directed-self-assembly membrane fabrication for in situ analysis of block copolymer structures

J Ren, L E Ocola, R Divan, D A Czaplewski, T Segal-Peretz, S Xiong, R J Kline, C G Arges and P F Nealey. Post-directed-self-assembly membrane fabrication for in situ analysis of block copolymer structures. Nanotechnology. 2016. Vol. 27, Pg. 435303.

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