Education & Background

UndergraduateBS Chemistry, UP Diliman, 2014
GraduatePhD Chemistry, The University of Tokyo, 2022
MS Chemistry, The University of Tokyo, 2019
Postdoctoral TrainingPostdoctoral Researcher, University of California Santa Barbara, 2022-2025
Previous Employment &
Appointments
Research Assistant, Hokkaido University, 2022
Science Research Specialist, UP Diliman, 2017
Instructor, UP Diliman, 2014-2016

Teaching

Chem 31: Elementary Organic Chemistry

Research

Research Focus

Soft Matter Physics and Chemistry

Our lab focuses on the structure and dynamics of polymers in solutions, gels, and elastomers, and on the design of soft materials using complementary scattering and mechanical characterization techniques.

Our research areas include:
Structural and dynamical properties of soft matter
Rheological and mechanical characterization
Structure–property relationships across length scales

Selected Publications

(1) C. I. Gupit, P. Salas-Ambrosio, J. M. Urueña, Y. Luo, J. M. Hankett, R. Gupta, M. T. Valentine, H. D. Maynard, M. E. Helgeson. Evaluating Polymerization Kinetics Using Microrheology. Polym. Chem. 2024, 15, 1758-1766. doi.org/10.1039/D4PY00188E  

(2) J. Tang, T. Katashima, C. I. Gupit, X. Li, Y. Mitsukami, Y. Yokoyama, N. Sakumichi, U. -I. Chung, M. Shibayama, T. Sakai. Non-swellability of polyelectrolyte gel in divalent salt solution due to aggregation formation. Polymer 2022, 250, 124894. doi.org/10.1016/j.polymer.2022.124894  

(3) Y. Tsuji, S. Nakagawa, C. I. Gupit, M. Ohira, M. Shibayama, X. Li. Selective Doping of Positive and Negative Spatial Defects into Polymer Gels by Tuning the Pregel Packing Conditions of Star Polymers. Macromolecules 2020, 53, 17, 7537–7545. doi.org/10.1021/acs.macromol.0c01208  

(4) C. I. Gupit, X. Li, R. Maekawa, N. Hasegawa, H. Iwase, S. Takata, M. Shibayama. Nanostructures and Viscosities of Nafion Dispersions in Water/Ethanol from Dilute to Concentrated Regimes. Macromolecules 2020, 53, 4, 1464–1473. doi.org/10.1021/acs.macromol.9b02314  

(5) M. Ohira, X. Li, C. I. Gupit, H. Kamata, T. Sakai, M. Shibayama. Dynamics of thermoresponsive conetwork gels composed of poly(ethylene glycol) and poly(ethyl glycidyl ether-co-methyl glycidyl ether). Polymer 2018, 155, 75-82. doi.org/10.1016/j.polymer.2018.09.031

Awards & Extension Work