Xuanxuan received her BE degree in chemical engineering from Tianjin University in 2011 and then joined the chemical engineering graduate program at UW-Madison, where she received her MS degree. She joined PME in January 2013 and is currently pursuing her PhD at the University of Chicago.
Directed self-assembly of block copolymers in the Nealey Group has focused on the behavior of thin films (< 150 nm). However, for many applications, thicker films with similar structures are preferred, but the extension of the process from thin to thick films is nontrivial. Block copolymers in thin films are subject to confinement effects, which play a large role in their assembly; these effects fall off as the film thickness increases and the BCP system behavior more closely mirrors that of the bulk. Xuanxuan is investigating this transition as well as methods to control and direct the BCP assembly at various film thicknesses. She characterizes the polymer behavior using in situ X-ray scattering experiments as well as cross-sectional SEM imaging to gather new insight into polymer assembly behavior at the critical film thickness where orientation transition occurs. Additionally, she is researching the formation of through-film structures and methods to direct their development.
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.