r. Patterson's research interest covers the following areas: conducting polymers, development of non-halogenated FR compounds, bio-synthesis of polymers, synthesis and characterization of high performance polymers, structure-property characterization of engineering resins, and the effect of processing conditions on polymer physical properties, polymer blends, polymer composites and polymer design via computer modeling. Some of the tools that we use to characterize these polymeric systems are Atomic Force Microscopy, FT-IR, FT-NMR, thermal analysis techniques, dynamic mechanical analysis, viscosity measurements (solution/melt rheology), molecular weight determination, and mechanical properties testing.

With the assistance of faculty members from the Chemistry and Physics departments, a NSF-MRI Grant was awarded for the acquisition of a Differential Scanning Calorimeter, Atomic Force Microscope with micro-Thermal Analysis capabilities and a Dynamic Rheometer with solids capabilities ($192,000). The university has provided funds from the acquisition of a tensile tester and a stereo microscope ($53,000) and replacement of our Thermal Gravimetric Analysis instrument (~$55K). Through the departments instrument budget a Fluorescence Spectrometer was purchased (~$25K)

Publications
D. J. Patterson and Jack L. Koenig, "Solid State C-13 Nuclear Magnetic Resonance Spectra of the Alpha and Beta Conformers of Trans-1,4-Polyisoprene,"; Polymer, 1988, 29, 241.

D. J. Patterson and Jack L. Koenig, "Solid-State 13C NMR Characterization of Irradiation-Cross-Linked Natural Rubber." Applied Spectroscopy, 1987, 41, 441.

A. L. Cholli, A. M. Zaper, D. J. Patterson, W. M. Ritchey, and J. L. Koenig, "A Hybrid Spinner and a New Reference Material for Magic Angle 13C NMR Spectroscopy." Applied Spectroscopy, 1987, 41, 529.

D. J. Patterson and Jack L. Koenig, "A Fourier-Transform Infrared and Nuclear Magnetic Resonance Study of Cyclized Natural Rubber,"; Makromol. Chem., 1987, 188, 2325.

J. L. Koenig and D. J. Patterson, "Application of Solid State 13C NMR Spectroscopy to Sulfur Vulcanized Natural Rubber", in Elastomers and Rubber Technology, R. E. Singler and C. A. Byrne, Editors, U. S. Government, Printing Office/Washington, 31, 1987.

J. L. Koenig and D. J. Patterson, "Application of Solid State 13C NMR Spectroscopy to Sulfur Vulcanized NR,"; Elastomerics, 1986, November issue, 21.

J. L. Koenig and D. J. Patterson, Encyclopedia Of Materials Science and Engineering, Ed. Michael B. Bever, "Elastomers: Spectroscopic Characterization", 1986, 1338 .

P. M. Patterson, D. J. Patterson, J. Blackwell, J. L. Koenig, A. M. Jamieson, Y. P. Carignan, and E. V. Turngren, "High-Resolution Solid-State 13C NMR Spectroscopy of Cellulose Nitrates", J. Polymer Science: Polymer Physics Edition, 1985, 23, 483.

D. J. Patterson and Jack L. Koenig, "Peroxide Cross-Linked Natural Rubber and cis-Polybutadiene: Characterization by High-resolution Solid-State Carbon-13 NMR", in Characterization of Highly Cross-Linked Polymers, S. S. Labana and R. A. Dickie, Editors, ACS Symposium Series 243; American Chemical Society: Washington DC, 1984, 205 .

D. J. Patterson and J. L. Koenig, "High Resolution 13C Solid State NMR of Network Polymeric Systems", Polymer Preprint, 1984, 25, 358.

D. J. Patterson and J. L. Koenig, "Characterization of Chemical Cross-linked Natural Rubber and Cis-Polybutadiene", Preprint Org. Plast., 1983, 45, 214.

D. J. Patterson, Jack L. Koenig, and J. Reid Shelton, "Vulcanization Studies Of Elastomers Using Solid-State 13C NMR", Rubber Chemistry and Technology, 1983, 56, #5, Nov.-Dec.

Professional Organization Memberships
American Chemical Society, Division of Polymeric Materials: Science and Engineering, Division of Polymer Chemistry, and Rubber Division
Society of Plastics Engineers

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