个人简介

Georgia Tech Professional Education Award, 2011; Class of 1940 Howard Ector Outstanding Teacher Award, 2009; Eichholz Award, 2008; Class of 1934 Outstanding Use of Educational Technology Award, 2008; Georgia Tech Ph.D. Advisor Award, 2005; NSF CAREER Award, 1995; Research Corporation Cottrell Scholarship, 1994; Dreyfus Foundation New Faculty Award, 1991.

研究领域

Chemical Education/Materials Chemistry/Organic Chemistry/Polymer Chemistry/Synthesis

The main focus of Dr. Collard's research is the molecular self-assembly in polymers which allows for the formation of new supermolecular architectures that take on new functions and promise potential benefits and novel applications. Currently, his group is studying surfactants, spontaneously assembled monolayers, and liquid crystals. Materials under study include conjugated electronically conductive polymers and new functional polyesters. Techniques used to construct and probe the structure of our supramolecular assemblies including: synthesis, electrochemistry, thermal analysis, X-ray diffraction and microscopy. Conducting Polymers. Electronically conductive polymers have a broad range of potential applications, including sensors, displays, optical communication, and microelectronics. The polymers of interest have highly conjugated backbones, such as polyacetylene and polythiophene. To prepare ordered ( i.e. , crystalline) polymers we have prepared monomers, which are surfactants and liquid crystals. The polymer chain structure and chain packing are studied for their effect on conjugation and charge migration. New Functional Copolyesters. Despite well-developed markets (fibers, food and beverage packaging), and a world shortage of feedstock, fundamental questions about the structure of polyethylene terephthalate (PET) remain unanswered. Copolymers and polymers with pendant functional groups are prepared to develop structure-property relationships and to optimize properties. Research goals include: decreased permeability to carbon dioxide and oxygen, increased glass transition temperature, increased tensile strength and increased modulus. Incorporation of the anthracenate unit into PET allows for the modification of polymer properties through grafting with dienophiles.

近期论文

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"Controlling Cell Adhesion to Biomaterials", J.E Raynor, J.R. Capadona, T.A. Petrie, A.J. Garcia, D.M. Collard, Biointerphases 2009, in press. "Saccharide Polymer Brushes Control Protein and Cell Adhesion to Titanium", J.E Raynor, T.A. Petrie, K.P. Fears, R.A. Latour, A.J. Garcia, D.M. Collard, Biomacromolecules 2009, in press. "Synthetic Approaches to Regioregular Unsymmetrical Dialkoxy Substituted Poly(1,4-Phenylene Ethynylene)s", R. Nambiar, K.B. Woody, J.D. Ochocki, G.L. Brizius, D.M. Collard, Macromolecules 2009, 42, 43-51. "Highly Porous Crosslinkable PLA-PNB Block Copolymer Scaffolds", Y. Wang, D. E. Noga, K. Yoon, A. M. Wojtowicz, A. S. P. Lin, A. J. Garcia, D. M. Collard, M. Weck, Advanced Functional Materials 2008, 18, 3638. "The Effect of Integrin-Specific Bioactive Coatings on Tissue Healing and Implant Osseointegration" T.A. Petrie, J.E. Raynor, C.D. Reyes, K.L. Burns, D.M. Collard, A.J. Garcia, Biomaterials, 2008, 29, 2849. "Synthesis and Modification of Functional Poly(lactide) Copolymers: Towards Biofunctional Materials" D.E. Noga, T.A. Petrie, A. Kumar, M. Weck, A.J. Garcia, D.M. Collard, Biomacromolecules 2008, 9, 2056. "Synthesis, Properties, and Tunable Supramolecular Architecture of Regioregular Poly(3-alkylthiophene)s with Alternating Alkyl and Semifluoroalkyl Substituents", B. Wang, S. Watt, M. Hong, B. Domercq, R. Sun, B. Kippelen, D.M. Collard, Macromolecules 2008, 41, 5156. "Controlling Cell Adhesion to Titanium: Functionalization of Poly(Oligo(ethylene glycol) Methacrylate) Brushes with Cell Adhesive Peptides", J.E. Raynor, T.A. Petrie, A.J. Garcia, D.M. Collard, Advanced Materials 2007, 19, 1724-1728. "Synthesis and Characterization of Regioregular and Regiorandom Unsymmetrically Substituted Poly (2,5-Dialkoxy-1,4-phenylene ethynylene)s", R.R. Nambiar, G.L. Brizius, D M. Collard, Advanced Materials 2007, 19, 1234-1238. "Structure and dynamic mechanical properties of poly(ethylene terephthalate-co-4,4'-bibenzoate) fibers" H. Ma, D.M. Collard, D.A. Schiraldi, S. Kumar, Polymer 2007, 48, 1651-1658. "Stacked Conjugated Oligomers as Molecular Models to Examine Interchain Interactions in Conjugated Materials", K.M. Knoblock, C.J. Silvestri, D.M. Collard, Journal of the American Chemical Society, 2006, 128, 13680-13681. "Aggregation of a Polyphilic Janus Polythiophene in Solution", L. Li, D.M. Collard, Macromolecules 2006, 39, 6092-6097. "Functional lactide monomers: Methodology and polymerization", W.W Gerhardt, D.E. Noga, K.I. Hardcastle, A.J. Garcia, D.M. Collard, M. Weck, Biomacromolecules 2006, 7, 1735-1742. "Switchable gratings by spatially periodic alignment of liquid crystals via patterned photopolymerization" J. Zhou, D.M. Collard, M. Srinivasarao, Optics Letters 2006, 31(5), 652-654. "Surface Nucleated Assembly of Fibrillar Extracellular Matrices", J. Capadona, D.M. Collard, A. Garcia, Advanced Materials 2005, 17, 2604-2608. "Improving Oxygen Barrier Properties of Poly(ethylene terephthalate) by Incorporating Isophthalate. I. Effect of Orientation", R.Y.F. Liu, Y.S. Hu, M.R. Hibbs, D.M. Collard, D.A. Schiraldi, A. Hiltner, E. Baer, Journal of Applied Polymer Science 2005, 98, 1615-1628. "The Rapid Chain Extension of Anthracene-Functionalized Polyesters by the Diels Alder Reaction", R.L. Kreigel, G. Jones, K. Saliba, D.A. Schiraldi, D.M. Collard, Macromolecular Chemistry and Physics 2005, 206, 1479-1487. "Hydroquinone-containing Polyesters", G. Andrade, D.A. Schiraldi, D.M. Collard, Macromolecular Chemistry and Physics 2005, 206, 1373-1381. "Integrin Binding Specificity Regulates Biomaterial Surface Chemistry Effects on Cell Differentiation", B.G. Keselowsky, D.M. Collard, A. Garcia, Proceedings of the National Academy of Sciences of the United States of America 2005, 102, 5953-5957. "Tuning the Electronic Structure of Conjugated Polymers with Fluoroalkyl Substitution: Alternating Alkyl/Perfluoroalkyl-Substituted Polythiophene", L. Li, D.M. Collard, Macromolecules 2005, 38, 372-378.