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Long Group Publications

(65) Workman, C.E.; Bag, P.; Cawthon, B.; Ali, F. H.; Brady, N. G.; Bruce, B. D.; Long, B. K. “Alternatives to Styrene- and Diisobutylene-based Copolymers for Membrane Protein Solubilization via Nanodisc Formation” Angew. Chem. Int. Ed. 2023accepted.

DOI: 10.1002/anie.202306572


(64) Annamraju, A.; Rajan, K.; Zuo, X.; Long, B.K.; Pingali, S. V.; Elder, T. J.; Labbe, N.  “Atomic Level Interactions and Suprastructural Configuration of Plant Cell Wall Polymers in Dialkylimidazolium Ionic Liquids” Biomacromolecules 2023, 24, 2164.

DOI: 10.1021/acs.biomac.3c00047


(63) Wenger, L.E.; Shawver, N.M.; Koby, R.F.; Brennessel, W.W.; Long, B.K.; Hanusa, T.P.  “Heteroleptic Aluminum Allyls as Initiators for Lactide Polymerization” Organometallics 2022, 41, 3718.

DOI: 10.1021/acs.organomet.2c00482

(62) Shawver, N.M.; Doerr, A.M.; Long, B. K.  “A perspective on redox-switchable ring-opening polymerization” J. Polym. Sci. 202361, 361.

DOI: 10.1002/pol.20220585


(61) Kaiser, J.M.; Burroughs, J. M.; Long, B. K.  “Photoinduced Initiation of Olefin Polymerization: Enabling Spatial Control with Light” J. Am. Chem. Soc. 2022, 144, 21206.

DOI: 10.1021/jacs.2c08548

(60) Workman, C.E.; Cawthon, B.; Brady, N.G.; Bruce, B.D.; Long, B. K.  “Effects of Esterified Styrene-Maleic Acid Copolymer Degradation on Integral Membrane Protein Extraction” Biomacromolecules 2022, 23, 4749.

DOI: 10.1021/acs.biomac.2c00928

(59) O’Connell, C.E.; Sabury, S.; Jenkins, J.E.; Collier, G.S.; Sumpter, B.G.; Long, B.K.; Kilbey II, S.M. “Highly Fluorescent Purine-Containing Conjugated Copolymers with Tailored Optoelectronic Properties” Polym. Chem. 2022, 13, 4921. 


DOI: 10.1039/d2py00545j

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(58) Wang, X.*; Wilson, T. J.*; Maroon, C.R.; Laub, J.A.; Rheingold, S.E.; Vogiatzis, K.D.; Long, B. K.  “Vinyl-Addition Fluoroalkoxysilyl-Substituted Polynorbornene Membranes for CO2/CH4 Separation” ACS Appl. Polym. Mater, 2022, 4, 7976. 


*denotes equal contribution

DOI: 10.1021/acsapm.1c01833


(57) Doerr, A.M.; Curry, M.R.; Chapleski, R.C.; Burroughs, J.M.; Lander, E.K.; Roy, S.; Long, B. K.  “Redox Potential as a Predictor of Polyethylene Branching Using Nickel α-Diimine Catalysts” ACS Catalysis 2022, 12, 73. 


DOI: 10.1021/acscatal.1c03646


(56) Wang, X.; Jeong, Y.L.; Love, C.; Stretz, H.; Stein, G.E.; Long, B. K.  “Design, Synthesis, and Characterization of Vinyl-addition Polynorbornenes with Tunable Thermal Properties” Polym. Chem. 2021, 12, 5831. 


DOI: 10.1039/D1PY01050F

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(55) Brady, N.G.*; Workman, C.E.*; Cawthon, B.; Bruce, B.D.; Long, B. K.  “Protein Extraction Efficiency and Selectivity of Esterified Styrene–Maleic Acid Copolymers in Thylakoid Membranes” Biomacromolecules 2021, 22, 2544.


*denotes equal contribution

DOI: 10.1021/acs.biomac.1c00274


(54) Wang, X.*; Wilson, T. J.*; Alentiev, D.; Gringolts, M.; Finkelshtein, E.; Bermeshev, M.; Long, B. K.  “Substituted polynorbornene membranes: a modular template for targeted gas separations” Polym. Chem. 2021, 12, 2947. 


*denotes equal contribution

DOI: 10.1039/D1PY00278C

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(53) Koby, R. F.; Doerr, A. M.; Rightmire, N. R.; Schley, N. D.; Brennessel, W. W.; Long, B. K.; Hanusa, T.  P.  “Mechanochemical Formation, Solution Rearrangements, and Catalytic Behavior of a Polymorphic Ca/K Allyl Complex” Chem. Eur. J. 2021, 27, 8195. 


DOI: 10.1002/chem.202100589

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(52) Doerr, A. M.*; Burroughs, J. M.*; Gitter, S. R.*; Yang, X.*; Boydston, A. J.; Long, B. K. “Advances in Polymerizations Modulated by External Stimuli” ACS Catalysis 2020, 10, 14457. 


*denotes equal contribution

DOI: ​10.1021/acscatal.0c03802


(51) Galan, N.*; Burroughs, J. M.*; Maroon, C. R.; Long, B. K.; Brantley, J. “Vinyl-Addition Polymerizations of Cycloallenes: Synthetic Access to Congeners of Cyclic-Olefin Polymers” Polym. Chem. 2020, 11, 5578. 


*denotes equal contribution

DOI: ​10.1039/D0PY01018A

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(50) Lawrence, J. A.; Harrigan, D. J.; Maroon, C. R.; Sharber, S. A.; Long, B. K.; Sundell, B. J. “Promoting acid gas separations via strategic alkoxysilyl substitution of vinyl-added poly(norbornene)s” J. Membrane Sci. 2020, 616, 118569. 


DOI: ​10.1016/j.memsci.2020.118569

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(49) 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. & Tech. 2020, 10, 6501.

DOI: ​10.1039/D0CY00642D

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(48) 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. Sci. 2020, 58, 2644. 


DOI: ​10.1002/pol.20200150

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(47) 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. 2020, 59, 2. 


DOI: 10.1002/anie.201916410​

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(46) 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. & Tech. 2020, 10, 2029. 


DOI: 10.1039/C9CY02538C​

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(45) 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​

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(44) Hendren, K. D.; Higgins, M. A.; Long, B. K.; Foster, E. J. “Cellulose nanocrystal-reinforced poly(5-triethoxysilyl-2-norbornene) composites” Polym. Chem. 2020, 11, 433. 


DOI: 10.1039/C9PY00963A

  • Featured in the 2020 Polymer Chemistry

          Emerging Investigators collection

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(43) 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. Ed. 2019, 58, 5639-5642. 


DOI: 10.1002/anie.201900467

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(42) 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 2019, 52, 1589-1600. 




(41) Kaiser, J. M.; Long, B. K. “Polar Comonomer Incorporation using Cationic Ni α-Diimine Olefin Polymerization Catalysts” Science China Chemistry 2019, 62, 153-154. 




(40) Mitchell, N. E.; Long, B. K. “Recent Advances in Thermally Robust, Late Transition Metal Catalyzed Olefin Polymerization” Poly. International 2019, 68, 14-26. 


DOI: 10.1002/pi.5694

  • Invited Article

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(39) 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 201811, 265. 


DOI: 10.1186/s13068-018-1263-0

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(38) Kaiser, J. M.; Long, B. K. “Recent developments in redox-active olefin polymerization catalysts” Coord. Chem. Rev. 2018372, 141-152.


DOI: 10.1016/j.ccr.2018.06.007

  • Invited Article


(37) 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. 20182, 1700113.


DOI: 10.1002/adsu.201700113

  • Featured on the Back Cover


(36) 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) a-Diimine Catalyst” Polymers 201810, 41.


DOI: 10.3390/polym10010041


(35) 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” Polym. Chem. 2018, 9, 1567-1570.


DOI: 10.1039/C7PY01836C


(34) 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


(33) 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. 201793, 602.


DOI: 10.1016/j.eurpolymj.2017.06.030


(32) 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 20175, 6891.


DOI: 10.1039/C7TC01835E


(31) 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 201755, 2824.


DOI: 10.1002/pola.28688


(30) 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


(29) 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. 20174, 1108.


DOI: 10.1039/C7QI00079

  • Invited Article


(28) 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 Sci. 2017530, 213.


DOI: 10.1016/j.memsci.2017.02.033


(27) Anderson Jr., W. C.; Long, B. K. “Modulating Polyolefin Copolymer Composition via Redox-Active Olefin Polymerization Catalysts” ACS Macro Lett20165, 1029.


DOI: 10.1021/acsmacrolett.6b00528


(26) Collier, G. S.; Brown, L. A.; Boone, E. S.; Long, B. K.; Kilbey, S. M. “Synthesis of Main Chain Purine-Based Copolymers and Effects of Monomer Design on Thermal and Optical Properties” ACS Macro Lett. 20165, 682.


DOI: 10.1021/acsmacrolett.6b00275


(25) Njiojob, C. N.; Bozell, J. J.; Long, B. K.; Elder, T.; Key, R. E.; Hartwig, W. T. “Enantioselective Syntheses of Lignin Models: An Efficient Synthesis of β-O-4 Dimers and Trimers by Using the Evans Chiral Auxiliary” Chem. Eur. J. 201622, 12506.


DOI: 10.1002/chem.201601592

  • Selected as a Hot Paper


(24) Gmernicki, K. R.; Hong, E.; Maroon, C. R.; Mahurin, S. M.; Sokolov, A. P.; Saito, T.; Long, B. K. “Accessing Siloxane Functionalized Polynorbornenes via Vinyl-Addition Polymerization for CO2 Separation Membranes” ACS Macro Lett. 20165, 879.


DOI: 10.1021/acsmacrolett.6b00435


(23) Anderson Jr., W. C.; Rhinehart, J.L.; Tennyson, A. G.; Long, B. K. “Redox-Active Ligands: An Advanced Tool to Modulate Polyethylene Microstructure” J. Am. Chem. Soc. 2016, 138, 774.


DOI: 10.1021/jacs.5b12322


(22) Gmernicki, K. R.; Cameron, M.; Long, B. K. “Fundamental Investigations into the Free-radical Copolymerization of N-phenylmaleimide and Norbornene” J. Poly. Sci. A 2016, 54, 985.


DOI: 10.1002/pola.27934


(21) Brown, L. A.; Rhinehart, J. L.; Long, B. K. “The Effects of Ferrocenyl Proximity and Monomer Presence during Oxidation for the Redox-Switchable Polymerization of L-Lactide” ACS Catalysis 20155, 6057.


DOI: 10.1021/acscatal.5b01434


(20) Hong, T.; Niu, Z.; Hu, X.; Gmernicki, K.; Cheng, S.; Fan, F.; Johnson, J. C.; Hong, E.; Mahurin, S.; Jiang, D.; Long, B.; Mays, J.; Sokolov, A.; Saito, T. “Effect of Cross-Link Density on Carbon Dioxide Separation in PDMS Norbornene Membranes” ChemSusChem 20158, 3595.


DOI: 10.1002/cssc.201500903

  • Featured on the cover of issue #21


(19) Njiojob, C. N.; Rhinehart, J. L.; Bozell, J. J.; Long, B. K. “Synthesis of Enantiomerically Pure Lignin Dimer Models for Catalytic Selectivity Studies” J. Org. Chem. 201580, 1771.


DOI: 10.1021/jo502685k


(18) Rhinehart, J. L.; Mitchell, N. A.; Long, B. K. “Enhancing α-Diimine Catalysts for High-Temperature Ethylene Polymerization” ACS Catalysis 20144, 2501.


DOI: 10.1021/cs500694m


(17) Rhinehart, J. L.; Brown, L. A.; Long, B. K. “A Robust Ni(II) α-Diimine Catalyst for High Temperature Ethylene Polymerization” J. Am. Chem. Soc2013135, 16316.


DOI: 10.1021/ja408905t

Prior Pubs

Publications from Prior Research

(16) Long, B. K.; Eagan, J. M.; Mulzer, M.; Coates, G. C. “Semi-Crystalline Polar Polyethylene: Ester-Functionalized Linear Polyolefins Enabled by a Functional-Group-Tolerant, Cationic Nickel Catalyst” Angew. Chem. Int. Ed.201655, 7106. DOI: 10.1002/anie.201601703

(15) Bell, W. K.; Rawlings, B. M.; Long, B. K.; Webb, R. C.; Keitz, B. K.; Häußling, L.; Willson, C. G. “Poling and crosslinking processes in NLO polymers” J. Poly. Sci., A 201452, 2769. DOI: 10.1002/pola.27298

(14) Bruce, R. L.; Weilnboeck, F.; Lin, T.; Phaneuf, R. J.; Oehrlein, G. S.; Long, B. K.; Willson C. G.; Alizadeh, A., “On the absence of post-plasma etch surface and line edge roughness in vinylpyridine resists” J. Vac. Sci. Tech., B 201129, 41604. DOI: 10.1116/1.3607604

(13) Bruce, R. L.; Lin, T.; Phaneuf, R. J.; Oehrlein, G. S.; Bell, W.; Long, B.; Willson C. G., “Molecular structure effects on dry etching behavior of Si-containing resists in oxygen plasma” J. Vac. Sci. Tech., B 201028, 751. DOI: 10.1116/1.3455496

(12) Bruce, R. L.; Weilnboeck, F.; Lin, T.; Phaneuf, R. J.; Oehrlein, G. S.; Long, B. K.; Willson, C. G.; Vegh, J. J.; Nest, D.; Graves, D. B., “Relationship between nanoscale roughness and ion-damaged layer in argon plasma exposed polystyrene films” J. Appl. Phys. 2010107, 084310. DOI: 10.1063/1.3373587

(11) Nest, D.; Chung, T-Y.; Végh, J. J.; Graves, D. B.; Bruce, R. L.; Lin, T.; Phaneuf, R. J.; Oehrlein, G. S.; Long, B. K.; Willson, C. G., “Role of polymer structure and ceiling temperature in polymer roughening and degradation during plasma processing: a beam system study of P4MS and PαMS” J. Phys. D: Appl. Phys. 201043, 085204. DOI: 10.1088/0022-3727/43/8/085204

(10) Costner, E.; Long, B. K.; Navar, C.; Jockusch, S.; Lei, X.; Zimmerman, P.; Campion, A.; Turro, N.; Willson, C. G., “Fundamental Optical Properties of Linear and Cyclic Alkanes: VUV Absorbance and Index of Refraction” J. Phys. Chem. A 2009113, 9337. DOI: 10.1021/jp903435c

(9) Bruce, R. L.; Engelmann, S.; Lin, T.; Kwon, T.; Phaneuf, R.; Oehrlein, G. S.; Long, B. K.; Willson, C.; Végh, J.; Nest, D.; Graves, D. B.; Alizadeh, A., “Investigation of Plasma-Polymer Interactions for Patterning Nanostructures” J. Vac. Sci. Tech., B 200927, 1142. DOI: 10.1116/1.3136864

(8) Végh, J. J.; Nest, D.; Graves, D. B.; Bruce, R.; Engelmann, S.; Kwon, T.; Phaneuf, R. J.; Oehrlein, G. S.; Long, B. K.; Willson, C. G., “Molecular dynamics simulations of near-surface modification of polystyrene: Bombardment with Ar+ and Ar+/radical chemistries” J. Appl. Phys. 2008104, 034308. DOI: 10.1063/1.2963708

(7) Heath, W. H.; Palmieri, F.; Adams, J. R.; Long, B. K.; Chute, J.; Holcombe, T.; Zieren, S.; Truitt, M. J.; White, J. L.; Willson, C. G., “Degradable Cross-Linkers and Strippable Imaging Materials for Step-and-Flash Imprint Lithography”  Macromolecules 200841, 719. DOI: 10.1021/ma702291k

(6) Long, B. K.; Keitz, B. K.; Webb, R. C.; Willson, C. G., “Photocross-linkable polymers for electro-optic applications” POLY Preprints 200849, 264. Link to ACS preprint website

(5) Costner, E.; Matsumoto, K.; Taylor, J. C.; Long, B. K.; Wojtczak, W.; Willson, C. G., “New High Index Fluids: Exploiting Anomalous Dispersion for Immersion Lithography” Proc. SPIE, Int. Soc. Opt. Eng. (Pt. 1) 20086923, 69230B. DOI: 10.1117/12.772979

(4) Végh, J. J.; Nest, D.; Graves, D. B.; Bruce, R.; Engelmann, S.; Kwon, T.; Phaneuf, R.; Oehrlein, G. S.; Long, B. K.; Willson, C., “Near-Surface Modification of Polystyrene by Ar+: Molecular Dynamics Simulations and Experimental Validation” Appl. Phys. Lett. 200791, 233113. DOI: 10.1063/1.2821226

(3) Palmieri, F.; Adams, J.; Long, B. K.; Heath, W.; Tsiartas, P.; Willson, C. G., “Strippable Imprint Resist Cross-Linkers for Step and Flash Imprint Lithography®” ACS Nano 20071, 307. DOI: 10.1021/nn7001079

(2) Long, B. K.; Keitz, B. K.; Willson, C. G., “Materials for Step and Flash Imprint Lithography (S-FIL®)” J. Mat. Chem. 200717, 3575. DOI: 10.1039/b705388f

  • Featured on the cover of issue #34

  • Invited Article

(1) Grayson, S. M.; Long, B. K.; Kusomoto, S.; Osborn, B. P.; Callahan, R. P.; Chambers, C. R.; Willson, C. G., “Synthesis and Characterization of Norboranediol Isomers and Their Fluorinated Analogues” J. Org. Chem200671, 341-344. DOI: 10.1021/jo0513156

(4) Workman, C. E.; Brady, N. G.; Bruce, B. D.; Long, B. K., “Amphiphilic Maleic Acid and Maleimide Copolymers (xMAs) with Enhanced Bioactivity for Protein Solubilization” US Provisional Patent Application Number: 63/265,116, 2021. 

(3) Brady, N. G.; Workman, C. E.; Cawthon, B.; Bruce, B. D.; Long, B. K., “Functionalized Maleic Acid Copolymers for Enhanced Bioactivity” PCT Application No. PCT/US22/28113, Filed: May 6, 2022. Patent Pending. 

(2) Kaiser, J. M.; Long, B. K., “Olefin Polymerizations and Priniting Methods Thereof” US Patent Application Number: 16827002, Filed: March 23, 2020. Patent Pending.

(1) Hong, T.; Chatterjee, S.; Mahurin, S. M.; Long, B. K.; Jiang, D.; Mays, J. W.; Sokolov, A. P.; Saito, T., “Cross-linked Polymeric Membranes for Carbon Dioxide Separation” 2018. US Patent No.: US 9,873,094



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