Members
Post-Doctoral Researchers
 |
Jose Carlos LugoCarlos was born in Mexico City and earned his B.S., M.S., and Ph.D. in Chemical Sciences from UNAM, where his research focused on catalysis of organophosphates by metal complexes. He completed his Ph.D. in 2020 and pursued a Marie Curie postdoctoral fellowship at the University of Sheffield (2022-2024) under Prof. Nick Williams, designing and assembling synthetic systems to mimic cellular communication and transmit signals across membranes. His current research focuses on photoresponsive polymers for metal ion capture and release for water softening applications. |
 | Logan HessefortLogan received his B.S. in chemistry from the University of Central Missouri in 2020. In 2025, he received his Ph.D. in chemistry from Arizona State University under the guidance of Timothy Long and Kyle Biegasiewicz. The main focus of his Ph.D. research was non-isocyanate polyureas and bio-derived polyimide copolymers for low-dielectric semiconductor packaging, alongside mechanism determination in vanadium-dependent haloperoxidases by cryo-EM and reaction discovery. During his Ph.D. he received a DOE Office of Science Graduate Student Research (SCGSR) Fellowship, which he completed at the National Renewable Energy Laboratory in 2024 developing machine learning pipelines for enzyme discovery. His postdoctoral research in the Long group focuses on polymer-derived ceramics. He is also the founder of a pre-seed startup focused on enhancing circularity in the polyurethane industry. |
Graduate Students
 | Clarissa WestoverCV LinkedInClarissa is a fifth year graduate student in the School for the Engineering of Matter, Transport, and Energy. She graduated from Brigham Young University with a B.S. in Chemical Engineering. Her research delves into the sustainability and circularity of linear polyurethanes and polyurethane foams. Clarissa is currently working on incorporating degradable linkages into polyurethanes to easily break them down into oligomers that are suitable for repolymerization. 
|
| Kamyar Karimi NikooKamyar graduated from Sharif University of Technology (Tehran, Iran) in 2020 with a B.S. in Chemical Engineering. Kamyar joined ASU in August 2021, starting his Ph.D. in Chemical Engineering, advised by Prof. Timothy Long and Prof. Jeffrey Self. His research focuses on designing and rheological characterization of super-soft and tough siloxane-based elastomers with complex structures for additive manufacturing.  |
 | Jared NettlesJared graduated from Arizona State University in 2019 with a B.S. in Chemical Engineering, subsequently earning a M.S. in 2020 through the accelerated 4+1 program. Starting as an undergraduate and continuing through his +1, he spent three fulfilling years at Intel’s Ocotillo campus as a LEAN Engineer in the Lithography department before transferring to Yield Analysis. In January 2022, Jared made his return to ASU, joining the Chemical Engineering Ph.D. program under the guidance of Prof. Timothy Long and Prof. Kailong Jin. His research goals broadly examine crosslinked polyurethane foams under the lens of green chemistry. He aims to uncover innovative decrosslinking methods to transform waste polyurethane foams into valuable materials.
|
| Garvit NayyarCV LinkedInGarvit completed his bachelors and masters from ASU in Mechanical Engineering and now pursuing his Ph.D. in Mechanical Engineering. Garvit's research focuses on additive manufacturing of polyimide precursors to expand application potential of polyimides. Another aspect of his research is to explore water dispersed polyimide precursors as a pathway to 3D printed conductive carbonaceous parts. Outside of research he enjoys gardening, painting, and going for walks. 
|
 | Margaret MadsenMargaret graduated from Western Connecticut State University in 2022 with a B.S. in Chemistry. She is currently a fourth year Chemistry Ph.D. student in the School of Molecular Sciences. In the Long group her research focus includes the synthesis of novel surfactants to assess chemical structure effects on physical performance as well as the synthesis of photo-active polyimides for additive manufacturing.
|
 | Taylor VaughanCV LinkedInTaylor is from Ventura, CA, and graduated in 2024 with a B.S. in Biochemistry from California Polytechnic State University (Cal Poly) in San Luis Obispo. During her time there, she conducted organic polymer chemistry research under Dr. Philip Costanzo, contributing to the development of a thermally de-bondable adhesive aimed at facilitating easier product disassembly and promoting a circular economy. Currently, as a third-year graduate student in the Long lab, she is leveraging step-growth polymerizations through the development of low-Dk bio-based polyimides for advanced applications, in addition to high barrier performance polyesters. Her passion lies in leveraging polymer chemistry to advance sustainability and address the global waste crisis.
|
 | Noelle WongNoelle graduated from California Polytechnic State University San Luis Obispo in 2023 with a B.S. in Chemistry. During her time at Cal Poly SLO, she conducted research under the guidance of Dr. Philip J. Costanzo that focused on synthesizing of "Click-Chemistry" small molecules to incorporate into stimuli-responsive polymers. She is currently a Chemistry Ph.D. student in the School of Molecular Sciences. In the Long lab, her research focuses on designing diacetylene-containing polymers and polymer-derived ceramics. |
 | Victoria BelkaVictoria graduated from the Schreyer Honors College at the Pennsylvania State University with a B.S. in Materials Science and Engineering in 2022 . During her time at Penn State, she researched the rheological behavior of cellulose in ionic liquids in the laboratory of Dr. Ralph Colby. From 2022 to 2024, Victoria worked as a chemist in the graphic arts division of Arkema Sartomer and developed specialty UV-curing acrylate and methacrylate printing inks. Victoria returned to academia in 2024 to pursue a Ph.D. in Chemistry. In the Long lab, her research focuses on the development of high-temperature engineering polymers for advanced applications. |
 | Kelly NguyenKelly received her B.S. and M.S. in Chemical Engineering from Arizona State University, where she worked with Dr. Jeffrey Self on reactive freeze-casting of poly(dimethylsiloxane) to create porous elastic materials. She is now a Chemical Engineering Ph.D. student in the Long Lab. Her research focuses on the relationship between polymer structure and wear properties, as well as the synthesis of polymers using bio-based feedstreams for additive manufacturing. |
Hellan Kadukumblayil MoncyHellan was born and raised in Kerala, a southern state in India. She graduated from | |
 | Viggo KovasViggo graduated from UCSD in 2026 with a B.S. in Nanoengineering, where he worked under Dr. Jonathan Pokorski’s guidance. There, his research focused on granting plants novel properties via a polynorbornene-based biohybrid system. Following his bachelors, Viggo joined ASU’s Chemical Engineering PhD program in Fall 2026 co-advised by Dr. Timothy Long and Dr. Eileen Seo. His current work revolves around poly(imide siloxane) block copolymers, and how the integration of nanoparticles will alter the morphology and functionality of these systems. |
 | Sobhan ChoudharySobhan holds a B.E. and M.S. in Biomedical Engineering from Ziauddin University, Karachi, |
Clint PaulingClint completed a double bachelor's degree from ASU in Biochemistry and Pharmacology/Toxicology. During his undergraduate studies, he researched tyrosine ammonium-lyases ability to affect native tyrosine metabolism, as well as the synthesis of small molecule therapeutics. He is currently a first-year Master's student in Chemistry through the School of Molecular Sciences at ASU. In the Long group, his research focuses on the creation and printing of carbonaceous precursor-containing polymers. |
Undergraduate Students