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Brian Long

Brian K. Long

Associate Professor


Research efforts in the Long Group are highly interdisciplinary and utilize the tools of organic synthesis, polymer chemistry, organometallic design, and even polymer science and engineering to address fundamental problems with real world impact. Our research is divided into two main thrusts: (1) the design and synthesis of functional polymeric materials, and (2) the development and utilization of next-generation polymerization catalysts. To find out more about each of these thrusts and current projects within the Long Research Group, please click on the “Group Website” link to the right.


Brian (BL) began studying chemistry as an undergraduate at North Georgia College & State University under the direction of Professor Dan Thompson and as an REU student at Furman University with Professors John Wheeler and Noel A. P. Kane-Maguire. After completion of his B.S. degree, he attended the University of Texas at Austin for his doctoral studies under Professor C. Grant Willson and was co-advised by Christopher W. Bielawski. His graduate research involved the synthesis and application of traditional and nontraditional resist chemistries as well as nonlinear optical materials. After graduating in 2009, he moved to Ithaca, NY to begin his postdoctoral studies at Cornell University under the supervision of Professor Geoffrey W. Coates. While there, BL focused on the design, synthesis and application of olefin polymerization catalysts. He has since returned to the southeast and is currently an Associate Professor of Chemistry at the University of Tennessee (UTK). During his time at UTK, BL has been the recipient of the Ffrancon Williams Endowed Faculty Award, an Army Research Office Young Investigator Award, a Department of Energy Early Career Award, and was named the Gleb Mamantov Professor of Chemistry in 2020.


B.S., North Georgia College & State University (2003)
Ph.D., The University of Texas at Austin (2009)
Postdoc, Cornell University (2009-2011)

Awards and Recognitions

Gleb Mamantov Proffessorship in Chemistry (2020)
Department of Energy, Early Career Research Program Award (2017)
Ffrancon Williams Endowed Faculty Award (2015-2019)
Army Research Office Young Investigator Award (2014)
UT Summer Pre-college Service Award (2014, 2015)
ACS POLY Division Graduate Travel Award (2008)
Presidential Honors Scholar (North Georgia College & State University) (2003)


Recent Publications:

Doerr, A. M.; Burroughs, J. M.; Legaux, N. M.; Long, B. K. “Redox-Switchable Ring-Opening Polymerization by Tridentate ONN-Type Titanium and Zirconium Catalysts” Cat. Sci. & Tech2020just acceptedDOI: ​10.1039/D0CY00642D

Higgins, M. A.; Maroon, C. R.; Townsend, J.; Wang, X.; Vogiatzis, K. D.; Long, B. K. “Evaluating the impact of functional groups on membrane-mediated CO2/N2 gas separations using a common polymer backbone” J. Poly. Sci2020, just acceptedDOI: ​10.1002/pol.20200150

Koby, R. F.; Doerr, A. M.; Rightmire, N. R.; Schley, N. D.; Long, B. K.; Hanusa, T. P. “An eta-3-Bound Allyl Ligand on Magnesium in a Mechanochemically Generated Mg/K Allyl Complex” Angew. Chem. Int. Ed. 202059, 2. DOI: 10.1002/anie.201916410​

Chapleski Jr., R. C.; Kern, J. L.; Anderson Jr., W. C.,; Long, B. K.; Roy, S. “A Mechanistic Study of Microstructure Modulation in Olefin Polymerizations using a Redox-Active Ni(II) α-Diimine Catalyst” Cat. Sci. & Tech202010, 2029. DOI: 10.1039/C9CY02538C​

Maroon, C. R.; Townsend, J.; Higgins, M. A.; Harrigan, D. J.; Sundell, B. J.; Lawrence, J. A.; O'Brien, J. T.; O'Neal, D.; Vogiatzis, K. D.; Long, B. K.“Addition-type Alkoxysilyl-Substituted Polynorbornenes for Post-Combustion Carbon Dioxide Separations” J. Membrane Sci. 2020, 595, 117532. DOI: 10.1016/j.memsci.2019.117532

Hendren, K. D.; Higgins, M. A.; Long, B. K.; Foster, E. J. “Cellulose nanocrystal-reinforced poly(5-triethoxysilyl-2-norbornene) composites” Poly. Chem202011, 433. DOI: 10.1039/C9PY00963A

Lee, D. C.; Kensy, V. K.; Maroon, C. R.; Long, B. K.; Boydston, A.J. “The intrinsic mechanochemical reactivity of vinyl-addition polynorbornene” Angew. Chem. Int. Ed201958, 5639-5642. DOI: 10.1002/anie.201900467

Maroon, C. R.; Townsend, J.; Gmernicki, K. R.; Harrigan, D. J.; Sundell, B. J.; Lawrence, J. A.; Mahurin, S. M.; Vogiatzis, K. D.; Long, B. K. “Elimination of CO2/N2 Langmuir Sorption and Promotion of “N2‑Phobicity” within High‑Tg Glassy Membranes” Macromolecules 201952, 1589-1600. DOI:10.1021/acs.macromol.8b02497

Kaiser, J. M.; Long, B. K. “Polar Comonomer Incorporation using Cationic Ni α-Diimine Olefin Polymerization Catalysts” Science China Chemistry 201962, 153-154. DOI:10.1007/s11426-018-9372-2

Mitchell, N. E.; Long, B. K. “Recent Advances in Thermally Robust, Late Transition Metal Catalyzed Olefin Polymerization” Poly. International 201968, 14-26. DOI: 10.1002/pi.5694

Moyer, P; Kim, K.; Abdoulmoumine, N.; Chmely, S. C.; Long, B. K.; Carrier, D. J.; Labbé, N. “Structural changes in lignocellulosic biomass during activation with ionic liquids comprising 3-methylimidazolium cations and carboxylate anions” Biotechnology for Biofuels 2018, 11, 265. DOI: 10.1186/s13068-018-1263-0

Kaiser, J. M.; Long, B. K. “Recent developments in redox-active olefin polymerization catalysts” Coord. Chem. Rev2018372, 141-152. DOI: 10.1016/j.ccr.2018.06.007

Hong, T.; Lai, S.; Mahurin, S. M.; Cao, P-F.; Voylov, D. N.; Meyer, H. M.; Jacobs, C. B.; Carillo, J-M. Y.; Kisliuk, A.; Ivanov, I.; Jiang, D-E.; Long, B. K.; Mays, J. W.; Sokolov, A. P.; Saito, T. “Highly-permeable Oligo (ethylene oxide)-co-Poly(dimethylsiloxane) Membranes for Carbon Dioxide Separation” Adv. Sustainable Sys. 2018, 2, 1700113. DOI: 10.1002/adsu.201700113

Brown, L. A.; Anderson Jr., W. C., Mitchell, N. A.; Gmernicki, K. R.; Long, B. K. “High Temperature, Living Polymerization of Ethylene by a Sterically-Demanding Nickel(II) -Diimine Catalyst” Polymers, 2018, 10, 41. DOI: 10.3390/polym10010041

Kaiser, J. M.; Anderson Jr., W. C., Long, B. K. “Photochemical regulation of a redox-active olefin polymerization catalyst: controlling polyethylene microstructure with visible light” Polymer Cemistry, 2018, 9, 1567-1570. DOI: 10.1039/C7PY01836C

Mitchell, N. A.; Anderson Jr., W. C., Long, B. K. “Mitigating Chain-transfer and Enhancing the Thermal Stability of Co-based Olefin Polymerization Catalysts through Sterically Demanding Ligands” J. Poly. Sci. A, 2017, 55, 3990. DOI: 10.1002/pola.28783

Belov, N.; Nikiforov, R.; Starannikova, L.; Gmernicki, K. R.; Maroon, C. R.; Long, B. K.; Shantarovich, V.; Yampolskii, Y. “A Detailed Investigation into the Gas Permeation Properties of Addition-type Poly(5-triethoxysilyl-2-norbornene)” Eur. Poly. J. 2017, 93, 602. DOI: 10.1016/j.eurpolymj.2017.06.030

Collier, G. S.; Brown, L. A.; Boone, E. S.; Kaushal, M.; Walter, M. G.; Long, B. K.; Kilbey, S. M. ” Synthesis of Donor-Acceptor Purine-Based Chromophores and an Investigation of Thermal, Photophysical, and Electrochemical Properties ” J. Mater. Chem. C, 2017, 5, 6891. DOI: 10.1039/C7TC01835E

Brown, L. A.; Wekesa, F. S.; Unruh, D. K.; Findlater, M.; Long, B. K. “BIAN-Fe(h6-C6H6): Synthesis, Characterization, and L-Lactide Polymerization” J. Poly. Sci. A, 2017, 55, 2824. DOI: 10.1002/pola.28688

Feng, H.; Hong, T.; Mahurin, S. M.; Vogiatzis, K. D.; Gmernicki, K. R.; Long, B. K.; Mays, J. W.; Sokolov, A. P.; Kang, N. G.; Saito, T. "Gas separation mechanism of CO2 selective amidoxime-poly(1-trimethylsilyl-1-propyne) membranes" Polym. Chem.20178, 3341-3350. DOI: 10.1039/C7PY00056A

Anderson Jr., W. C,; Park, S. H.; Brown, L. A.; Kaiser, J. M.; Long, B. K. “Accessing multiple polyethylene grades via a single redox-active olefin polymerization catalyst” Inorg. Chem. Front., 2017, 4, 1108. DOI: 10.1039/C7QI00079

Hong, T.; Chatterjee, S.; Mahurin, S. M.; Fan, F.; Tian, Z.; Jiang, D.; Long, B. K.; Mays, J. W.; Sokolov, A. P.; Saito, T. "Impact of tuning CO2-philicity in polydimethylsiloxane-based membranes for carbon dioxide separation" J. Membrane Sci2017530, 213. DOI: 10.1016/j.memsci.2017.02.033

Additional Information

Lab Address: 458/459/340 Buehler Hall

Office: 420 Buehler Hall

Brian Long

Contact Information