The University of Toledo
Chemical Engineering (MS 305)
3054 Nitschke Hall
1650 N Westwood Ave
Toledo, Ohio 43606-3390
1986 B.S. in Chemical Engineering, Louisiana Tech University
1992 Ph.D. in Chemical Engineering, University of Texas at Austin
My research interests lie in the following three broad interrelated areas:
Polymeric materials for membrane based separations with emphasis on ionic liquid based polymers for targeted solubility based selectivity, multifunctional network polymers, and surface modification of polymeric membranes. Membranes and systems of interest include gas separations at harsh conditions, pervaporation, membrane distillation, and water purification. Funding from National Science Foundation and Ohio Coal Development Office.
Mulitfunctional polymer nanocomposites with focus on application driven approach to component selection, composite design and synthesis. Efforts in our group have focused primarily on design of interfacial region between nanofillers and polymer matrix including modification of nanofiller surface with covalently bound monomers, polymers and block copolymers. In addition, the impact on the thermal-mechanical and conducting properties of nanofiller type, loading and processing method are being investigated. Funding from Department of Army.
Sustainable materials synthesis and processing with focus on alternative feedstock for monomers or nanofillers, energy reduction and solvent reduction. Key aspects include consideration of desired properties, processibility using traditional methods, economics and environmental sustainability. Specific interest of our group is in the following areas: (i) separation requirements for material synthesis and processing, (ii) alternatives nanofillers from renewable feedstocks and (iii) detailed structure-property analysis for biobased polymer nanocomposites.
Membranes Gas Separations
Hu. L, X. Xu, and M. R. Coleman, “Impact of Ion Type on Structure and Transport Property Evolution of Matrimid® , “Sep. Scie. And Technology, 43, Issue 16, 4030-4055 2008.
Hu. L, X. Xu, and M. R. Coleman, “Impact of Ion Irradiation on Matrimid® (II): Evolution in Gas Transport Properties, “ JAPS, 103(3), 1670-1680, 2007.
Fuhrman C., Nutt. M, Vichtovonga K, and MR Coleman, “Effect of thermal hysteresis on the gas permeation properties of 6FDA-based polyimides”, JAPS., 91(2), 1174-1182, 2004
Ilconich, J., Xu, X., and M.R. Coleman, “Impact of Ion Beam Irradiation on Microstructure and Gas Permeance of Polysulfone Asymmetric Membranes” J. Mem. Sci., 214/1, 143 – 156, 2003.
Hu, L., Xu, X.L., Ilconich, J., Ellis, S. and M.R. Coleman, “Impact of H+ Ion Irradiation on Matrimid® (I): Evolution in Chemical Structure”, JAPS., 90, 2003.
Xu, X. and M.R. Coleman, “Preliminary Investigation of Gas Transport Mechanism in a H+ Irradiated Polyimide-Ceramic Composite Membrane” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 152, Issue: 2-3, 325-334, 1999.
Myler, U. , X.L. Xu, M.R. Coleman, and P.J. Simpson, "Ion Implantation Induced Changes in Polyimide Films Monitored by Variable Energy Positron Annihilation Spectroscopy," Journal of Polymer Science, Polymer Physics Edition, 36, 2413-242, 1998.
Coleman, M.R., R. Kohn, and W.J. Koros, "Gas Separation Applications of Miscible Blends of Isomeric Polyimides," Journal of Applied Polymer Science, 50, 1059-1064, 1993.
Nave, F.M., Y.Z. Luo, and M. R. Coleman, “Impact of Mobile Phase Parameters on Transport Properties of Metal Affinity Hydrogel Membranes, “Sep. Scie. And Technology, 43, Issue 16, 4075-4098 (2008).
G. Iyer, L.M.V. Tillekeratne, M.R. Coleman and A. Nadarajah, “Equilibrium Swelling Behavior of Thermally Responsive Metal Affinity Hydrogels: II. Solution Effects,” Polymer, 49, 3744–3750, (2008)
G. Iyer, L.M.V. Tillekeratne, M.R. Coleman and A. Nadarajah, “Equilibrium Swelling Behavior of Thermally Responsive Metal Affinity Hydrogels: I. Compositional Effects,” Polymer, 49, 3737–3743, (2008)
Gorey, C., O. Mileyeva-Biebesheimer, C. Gruden, M. R. Coleman and I. Escobar, “Development of Smart Membrane Filters for Microbial Sensing”, Sep. Science. & Technology, 43, Issue 16, 4056-4074 (2008)
G. Iyer, P. Iyer, L.M.V. Tillekeratne, M.R. Coleman and A. Nadarajah, “Controlling Phase Transition Behavior of Thermally Responsive Metal Affinity Hydrogels: A Molecular Design Approach,” Macromolecules, 40, p5850 (2007).
G. Iyer, Young-Seo Yoon, M. Coleman, and A. Nadarajah, “Development of Environmentally Responsive Hydrogels with Metal Affinity Behavior" JAPS, 105(3), 1210-1220 (2007)
Li, X. and M.R. Coleman “Functionalization of carbon nanofibers with diamine and polyimide oligmer”, Carbon, 46, Issue: 8, pp. 1115-1125 (2008).
Mapkar, J., G. Iyer and M.R. Coleman “Functionalization of Carbon Nanofibers with PDMS-polyimide Block Copolymers using Carbodiimide Chemistry”, Applied Surface Science, (in press)
Iyer, P. and M.R. Coleman “Thermal and mechanical properties of blended polyimide & amine functionalized poly(orthosiloxane) composite” Journal Applied Polymer Science 108, Issue: 4, 2691 – 2699 , (2008).
Plaseied, A. M.R. Coleman and A. Fatemi, “ Effects of Carbon Nanofiber Content and Surface Treatment on the Mechanical Properties of Vinyl Ester”, Polymers and Polymer Composites, 16, 7, 405-413, (2008).
Li., X., Makpar, J., Lawrence, J. and M.R. Coleman” Polyimide-Carbon Nanofiber Composites for High Temperature Applications” Reviewed Proceedings of SAMPE Fall National Meeting, Nov. 2005, Seattle, WA.