Materials Science, Polymer Chemistry, Nanotechnology, Supramolecular Chemistry

The research programs in our laboratory are centered on the investigation and development of novel materials and methods for the precise control of organic molecular assemblies, both in solution and on surfaces as ultrathin films.  Our research activities involve organic and polymer synthesis, surface sensitive characterization techniques, nano- and micropatterning, and materials and device characterization. The approach we take is multidisciplinary, which involves chemistry, physics, bioengineering, and materials science. The devices of interest currently are enzymatic biofuel cells, smart polymer actuators, hybrid organic photovoltaic cells, and chemical and biological sensors. These devices are used as tools to investigate fundamental interfacial phenomena and to obtain a better understanding of inter- and intramolecular interactions that govern thin film architecture.  They are also of practical interest for nano- and microscale electronics, low cost and large area flexible plastic circuits, displays and disposable sensors.

Publications

Arnold, R. M.; Huddleston, E. N.; Locklin, J. Utilizing click chemistry to design functional interfaces through post-polymerization modification. Journal of Materials Chemistry 2012.
Bilbrey, J. A.; Sontag, K. S.; Huddleston, E. N.; Allen, W. D.; Locklin, J. On the Role of Disproportionation Energy in Kumada Catalyst-Transfer Polycondensation. ACS Macro Letters 2012, 995-1000.
Arumugam, S.; Orski, S. V.; Locklin, J.; Popik, V. V. Photoreactive Polymer Brushes for High-Density Patterned Surface Derivatization Using a Diels–Alder Photoclick Reaction. Journal of the American Chemical Society 2012, 134(1), 179-182.
Orski, S. V.; Fries, K. H.; Sontag, K. S.; Locklin, J. Fabrication of nanostructures using polymer brushes. Journal of Materials Chemistry 2011, 21(37), 14135.
Sheppard, G.; Oseki, T.; Baba, A.; Patton, D.; Kaneko, F.; Mao, L.; Locklin, J. Thiolene-based microfluidic flow cells for surface plasmon resonance imaging. Biomicrofluidics 2011, 5(2), 026501.
Marshall, N.; Sontag, K. S.; Locklin, J. Surface-initiated polymerization of conjugated polymers. Chemical Communications 2011, 47(20), 5681.
Hensarling, R. M.; Rahane, S. B.; LeBlanc, A. P.; Sparks, B. J.; White, E. M.; Locklin, J.; Patton, D. L. Thiol–isocyanate “click” reactions: rapid development of functional polymeric surfaces. Polymer Chemistry 2011, 2(1), 88.
Sontag, K. S.; Sheppard, G. R.; Usselman, N. M.; Marshall, N.; Locklin, J. Surface-Confined Nickel Mediated Cross-Coupling Reactions: Characterization of Initiator Environment in Kumada Catalyst-Transfer Polycondensation. Langmuir 2011, 27(19), 12033-12041.
Fries, K. H.; Driskell, J. D.; Sheppard, G. R.; Locklin, J. Fabrication of Spiropyran-Containing Thin Film Sensors Used for the Simultaneous Identification of Multiple Metal Ions. Langmuir 2011, 27(19), 12253-12260.
Dhende, V. P.; Samanta, S.; Jones, D. M.; Hardin, I. R.; Locklin, J. One-Step Photochemical Synthesis of Permanent, Nonleaching, Ultrathin Antimicrobial Coatings for Textiles and Plastics. ACS Applied Materials & Interfaces 2011, 3(8), 2830-2837.
Marshall, N.; Sontag, S. K.; Locklin, J. Substituted Poly(p-phenylene) Thin Films via Surface-Initiated Kumada-Type Catalyst Transfer Polycondensation. Macromolecules 2010, 43, 2137-2144. Abstract
Fries, K. H.; Driskell, J. D.; Samanta, S.; Locklin, J. Spectroscopic Analysis of Metal Ion Binding in Spiropyran Containing Copolymer Thin Films. Analytical Chemistry 2010, 82, 3306-3314. Abstract
Orski, S. V.; Poloukhtine, A. A.; Arumugam, S.; Mao, L.; Popik, V. V.; Locklin, J. High Density Orthogonal Surface Immobilization via Photoactivated Copper-Free Click Chemistry. Journal of the American Chemical Society 2010, 132, 11024-11026. Abstract
Sontag, S. K.; Marshall, N.; Locklin, J. Formation of conjugated polymer brushes by surface-initiated catalyst-transfer polycondensation. Chemical Communications 2009, 3354-3356. Abstract
Fries, K.; Samanta, S.; Orski, S.; Locklin, J. Reversible colorimetric ion sensors based on surface initiated polymerization of photochromic polymers. Chemical Communications 2008, 6288-6290. Abstract