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Renxuan Xie

Asst Professor
Faculty, TEMPE Campus, Mailcode 5001

Renxuan (Ren) Xie is an assistant professor in the School for Engineering of Matter, Transport and Energy and the Biodesign Center for Sustainable Macromolecular Materials and Manufacturing at the Arizona State University. He earned his PhD from the Pennsylvania State University and dual bachelor's degrees in chemical engineering and materials science and engineering from the University of Minnesota at Twin Cities. Xie then performed his postdoctoral work at the University of California Santa Barbara. At ASU, he aims to utilize rheology and fundamental polymer physics to develop sustainable polymers and processing methods.

  • Postdoctoral Scholar, University of California, Santa Barbara 
  • Ph.D. Chemical Engineering, Pennsylvania State University 
  • B.S. Materials Science & Engineering, University of Minnesota at Twin Cities
  • B.S. Chemical Engineering, University of Minnesota at Twin Cities
Research Interests: 
  • The Xie group aims to develop sustainable processing methods for multifunctional polymers as next-generation polymers in the health and energy industry.
  • The materials of interest include electron-conducting polymers, bottlebrush polymers, branched polymers, self-assembled polymeric colloids, and associative polymers. 
  • The Xie group is also actively engaged in investigating the fundamental physics of polymers with unique architectures and functions by building physical models to understand their impact on chain entanglements, glass transition, crystallization, network, and liquid crystalline phase. 
Research Group: 

Research Methodology

  • In situ rheological characterizations with optical and Raman capabilities provide unprecedented molecular-level insight into processing, thus guiding the designs of polymer structures and ink formulations.
  • Advanced 3D printing methods, such as direct ink writing and electrojet writing, are developed to obtain better print quality more sustainably.
  • Polymer synthesis, including ring-opening metathesis polymerization (ROMP), Grignard metathesis (GRIM) polymerization, atom-transfer radical polymerization (ATRP), are implemented to obtain the desired functional polymer structure.

Research Thrusts

  1. Rheology-informed advanced processing of sustainable materials
  2. Re-processable electrically conductive ink for 3D printing
  3. Novel thermophysical properties driven by unconventional chain architecture
  4. Functional polymer gels and networks as stretchable conductors, actuators, and sensors

Google Scholar


21. R. Xie, S. Mukherjee, A. E. Levi, J. Self, H. Wang, M. L. Chabinyc, C. M. Bates. "Yielding Behavior of Bottlebrush and Linear Block Copolymers" Macromolecules, 2021, 54, 12, 5636–5647. DOI link


20. U H. Choi, T. L. Price Jr., D. V. Schoonover, R. Xie, H. W. Gibson, and R. H. Colby, "Role of Chain Polarity on Ion and Polymer Dynamics: Molecular Volume-Based Analysis of the Dielectric Constant for Polymerized Norbornene-Based Ionic Liquids" Macromolecules, 2020, 53, 10561−10573. DOI link

19. R. Xie*, S. Mukherjee*, A. E. Levi, V. G. Reynolds, H. Wang, M. L. Chabinyc, C. M. Bates, "Room-Temperature 3D Printing of Super-Soft and Solvent-Free Elastomers" Science Advances, 2020, 6 (46), eabc6900. *: co-first authors DOI link

18. V. G. Reynolds, S. Oh, R. Xie, and M. L. Chabinyc, "Model for the Electro-Mechanical Behavior of Elastic Organic Transistors" Journal of Materials Chemistry C, 2020, 8, 9276-9285. DOI link

17. B. H. Smith, R. Xie, W. Lee, D. Adhikari, N. J. Podraza, E. D. Gomez, "Characterization of Chain Alignment at Buried Interfaces using Mueller Matrix Spectroscopy" MRS Communications, 2020, 10 (2), 292-297. DOI link

16. J. L. Self, C. S. Sample, A. E. Levi, K. Li, R. Xie, J. Read de Alaniz, C. M. Bates, "Dynamic Bottlebrush Polymer Networks: Self-Healing in Super-Soft Materials" Journal of the American Chemical Society, 2020 142 (16), 7567-7573. DOI link

15. R. Xie, A. R. Weisen, Y. Lee, M. A. Aplan, A. M. Fenton, A. E. Masucci, F. Kempe, M. Sommer, C. W. Pester, R. H. Colby, E. D. Gomez, "Glass Transition Temperature from the Chemical Structure of Conjugated Polymers" Nature Communications, 2020, 11, 893. DOI link

14. S. Mukherjee*, R. Xie*, V. G. Reynolds, T. Uchiyama, A. E. Levi, E. Valois, H. Wang, M. L. Chabinyc, C. M. Bates, "Universal Approach to Photo-Crosslink Bottlebrush Polymers" Macromolecules, 2020, 53, 3, 1090-1097. *: co-first authors DOI link

13. V. Reynolds, S. Mukherjee, R. Xie, A. E. Levi, A. Atassi, T. Uchiyama, H. Wang, M. Chabinyc, C. M. Bates, "Super-Soft Solvent-Free Bottlebrush Elastomers for Touch Sensing", Materials Horizons, 2020, 7, 181-187 DOI link


12. W. Zhang, J. H. Bombile, A. R. Weisen, R. Xie, R. H. Colby, M. J Janik, S. T. Milner, E. D. Gomez, "Thermal Fluctuations Lead to Cumulative Disorder and Enhance Charge Transport in Conjugated Polymers", Macromolecular Rapid Communications, 2019, 40, 1900134 DOI link

11. T. L. Price Jr., U. H. Choi, D. V. Schoonover, M. Arunachalam, R. Xie, S. Lyle, R. H. Colby, H. W. Gibson, "Ion Conducting ROMP Monomers Based on (Oxa)norbornenes with Pendant Imidazolium Salts Connected via Oligo(oxyethylene) Units and with Oligo(ethyleneoxy) Terminal Moieties", Macromolecules, 2019, 52, 4, 1371-1388 DOI link

10. T. L. Price Jr., U. H. Choi, D. V. Schoonover, D. Wang, J. R. Heflin, R. Xie, R. H. Colby, H. W. Gibson, "Studies of Ion Conductance in Polymers Derived from Norbornene Imidazolium Salts Containing Ethyleneoxy Moieties", Macromolecules, 2019, 52, 4, 1389-1399 DOI link


9. R. Xie, M. Aplan, N. Caggiano, T. Su, C. Müller, M. Segad, R. H. Colby, E. D. Gomez, "Local Chain Alignment via Nematic Ordering Reduces Chain Entanglement in Conjugated Polymers," Macromolecules, 2018, 51, 24, 10271-10284 DOI link

8. R. Xie, R. H. Colby, E. D. Gomez, "Connecting the Mechanical and Conductive Properties of Conjugated Polymers," Advanced Electronic Materials, 2018, 4, 10, 1700356 DOI link

7. Y. Lee, M. P. Aplan, Z. D. Seibers, R. Xie, T. E. Culp, C. Wang, A. Hexemer, S. M. Kilbey, Q. Wang, E. D. Gomez "Random Copolymers Allow Control of Crystallization and Microphase separation in Fully Conjugated Block Copolymers", Macromolecules, 2018, 51, 21, 8844-8852. DOI link

6. P. Zhan, W. Zhang, I. E. Jacobs, D. M. Nisson, R. Xie, A. R. Weisen, A. J. Moule, S. T. Milner, J. K. Maranas, E. D. Gomez, "Side Chain Length Affects Backbone Dynamics in Poly(3-alkylthiophene)s", Journal of Polymer Science Part B: Polymer Physics, 2018, 56, 17 1193-1202. DOI link

5. J. Bartolai, R. Xie, T. W. Simpson, "Predicting Strength of Additively Manufactured Thermoplastic Polymer Parts Produced using Material Extrusion," Rapid Prototyping Journal, 2018, 24 (2), 321-332. DOI link

4. J. S. Price, B. Wang, T. Kim, A. J Grede, J. M Sandoval, R. Xie, Y. Shen, D. R Adams, M. J Eller, A. Sokolov, S. Mukhopadhyay, P. Trefonas, E. D. Gomez, E. A. Schweikert, N. C. Giebink, "Fluoropolymer-Diluted Small Molecule Organic Semiconductors with Extreme Thermal Stability", Applied Physics Letters, 2018, 113, 26, 263302 DOI link


3. R. Xie, Y. Lee, M. Aplan, N. Caggiano, C. Müller, R. H. Colby, E. D. Gomez, "Glass Transition Temperature of Conjugated Polymers by Oscillatory Shear Rheometry," Macromolecules, 2017, 50, 5146-5154. DOI link


2. S. Wang, R. Xie, S. V. Kesava, E. D. Gomez, E. W. Cochran, M. L. Robertson, "Close-Packed Spherical Morphology in an ABA Triblock Copolymer Aligned with Large-Amplitude Oscillatory Shear," Macromolecules, 2016, 49, 4875−4888. DOI link


1. L. Martinetti, A. M. Mannion, W. E. Voje Jr., R. Xie, R. H. Ewoldt, L. D. Morgret, F. S. Bates, C. W. Macosko, "A critical gel fluid with high extensibility: The rheology of chewing gum," Journal of Rheology, 2014, 58, 821-838 DOI link


2. Renxuan Xie; Sanjoy Mukherjee; Adam E. Levi; Veronica Reynolds; Michael L. Chabinyc; Christopher Bates. “ROOM TEMPERATURE THREE DIMENSIONAL PRINTING OF A SUPER-SOFT AND SOLVENT FREE ELASTOMER”. International Patent. PCT/US21/21765 Filling date: 3/10/2021.

1. Michael L. Chabinyc; Christopher Bates; Veronica Reynolds; Sanjoy Mukherjee; Adam E. Levi; Renxuan Xie; Jeffrey Self. “CAPACITIVE PRESSURE SENSOR WITH BOTTLEBRUSH ELASTOMER DIELECTRIC LAYER FOR LOW PRESSURE SENSING”. US Patent. US15/931,254 Filling date: 2020/5/13.

Fall 2021
Course NumberCourse Title
CHE 461Process Dynamic Control
Honors / Awards: 
  • 2020 Future Faculty Scholar selected by American Chemical Society Division of Polymeric Materials: Science and Engineering Link
  • 2016 Materials Research Society Fall Meeting Poster Award Finalist
Professional Associations: 
  • Society of Rheology
  • American Physical Society
  • American Chemical Society
  • Materials Research Society
  • Peer reviewer for Journal of Rheology, Journal of Applied Polymer Science, Journal of Polymer Science, and Polymer International
  • Discussion leader in 2020 Virtual Gordon Research Seminar Polymer Physics