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Division of Polymer Chemistry (POLY) Division of Polymer Chemistry (POLY) Graphical Abstracts Submitted for the 245th ACS National Meeting & Exposition April 7-11, 2013 | New Orleans, Louisiana Division of Polymer Chemistry (POLY) Table of Contents (Click on a session for link to abstracts) SMTu W Th General Topics: New Synthesis and Characterization of Polymers A P A P A P Bottom‐Up Design of the Next Generation of Biomaterials A P A P A P Excellence in Graduate Polymer Research A P A P P Liquid Crystals and Polymers A P A P A P Undergraduate Research in Polymer Science A P P ACS Award in Polymer Chemistry: Symposium in Honor of Craig J. Hawker P Understanding Complex Macromolecular and Supramolecular Systems using P A P A P A P A Innovative Magnetic Resonance Strategies AkzoNobel North America Science Award* A ACS Award for Creative Invention: Symposium in Honor of Timothy M. Swager A P A P Hybrid Materials* P A P A P A P Sci‐Mix E Carl S. Marvel Creative Polymer Chemistry Award A P Natural and Renewable Polymers P A P A P Polymer Composites for Energy Harvesting, Conversion and Storage P A P A P Polymer Precursor‐Derived Carbon P A P A P POLY/PMSE Plenary Lecture and Awards Reception* E Legend A = AM; P = PM; E = EVE *POLY is the primary organizer of the cosponsored symposium POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 1 - Band-gap engineering of carborane-containing conducting polymers: A computational study Ethan Harak1, [email protected], Bridgette Pretz1, Joseph Varberg1, M. Graca H. Vicente2, Petia Bobadova- Parvanova1. (1) Department of Chemistry, Rockhurst University, Kansas City, MO 64110, United States, (2) Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, United States Recent experiments have demonstrated that carboranyl substitution dramatically increases thermal stability of conducting polymers. In this study, a series of carboranyl-substituted polypyrroles was modeled computationally and the effect of different combinations of substituents, spacers, and linkages on the HOMO-LUMO gap was examined. Thus, the band gap was finely tuned for maximum conductivity. A comparison with a series of polythiophenes was also made. The results allowed the design of new polymers with enhanced conductive abilities. Sunday, April 7, 2013 08:30 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 2 - Improved efficiency organic photovoltaic cells by exertion of control over processing parameters and incorporation of polyhedral oligomeric silsesquioxane (POSS) Kelly R McLeod, [email protected], Mithun Bhattacharya, Qi Wu, Sarah E Morgan. School of Polymers and High Performance Materials, The University of Southern Mississippi, Hattiesburg, MS 39401, United States A systematic study of the effects of alteration of processing parameters in combination with incorporation of POSS molecules on the properties and structure of bulk heterojunction organic photovoltaic cells made from P3HT:PCBM blends was undertaken. On implementing the correct processing protocol, incorporation of POSS molecules with specific structures resulted in considerable enhancement in cell efficiencies. Figure 1A is a cross section of a bulk heterojunction photovoltaic cell; Figure 1B shows changes in efficiency with POSS incorporation. Sunday, April 7, 2013 08:45 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 3 - Block copolymer nanostructures for roll to roll manufacturing of photovoltaic devices Leon M Dean1, [email protected], Christopher M Bates2, Julia D Cushen1, Takehiro Seshimo2, Michael J Maher2, William J Durand1, Gregory Blachut1, Christopher J Ellison1, C Grant Willson1,2. (1) Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States, (2) Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States Maximum efficiency in photovoltaic devices demands structures <10 nm in size, on the length scale of exciton diffusion. High c block copolymers can self-assemble into such structures, but they do so slowly and require solvent treatment. New polymer materials and processes that, for the first time, enable the self-assembly of high c block copolymers by thermal annealing will be reported. In some cases, alignment can be achieved in tens of seconds, making the process compatible with roll to roll manufacturing. Sunday, April 7, 2013 09:00 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 4 - Synthetic design of block copolymer amphiphiles for nanomaterial dispersion Anton D Chavez1,2, [email protected], Greg O'Bryan2, Philip J Costanzo1. (1) Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA 93407-0402, United States, (2) Materials Chemistry, Sandia National Laboratories, Livermore, CA 94551, United States Amphiphilic block copolymers were prepared with a variety of controlled radical polymerization techniques, including RAFT and ATRP. Length of the hydrophobic and hydrophilic block were adjusted to determine optimum dispersion of various hydrophobic nanomaterials. The prepared water-borne dispersions were subsequently utilized for a wide variety of applications. Sunday, April 7, 2013 09:15 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 5 - Novel strategies for chemical synthesis of functional silicones Moshe Dolejsi, [email protected], Kirill Efimenko, Jan Genzer. Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States Synthetic pathways leading to formation of functional polymers with stimuli responsive properties has recently attracted a significant research interest. We present novel synthetic strategies allowing preparation of functional homo/block silicones copolymers using disodiumoxysiloxanes as precursors for the reaction. The reactions are carried out at mild experimental conditions and allow precise control over functional silicone unit distribution along the backbone of the parent polymer. Possible mechanisms of polymer formation and its effect on a final polymer composition and polydispersity are discussed. Sunday, April 7, 2013 09:30 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 6 - Development of silcone-segmented semifluorinated polymers for high performance applications Olawale B. Lawal, [email protected], Sharon C. Kettwich, Scott T. Iacono. Department of Chemistry, United States Air Force Academy, USAF Academy, Colorado 80841, United States Semifluorinated perfluorcyclobutyl (PFCB) aryl ether polymers are a class of processable, step growth polymers that are easily tailorable for a multitude of high performance applications. Recently, it has been shown that PFCB aryl ether oligomers possessing reactive aryl trifluorovinyl ethers (TFVE) undergo block copolymerization with polyols/polybisphenols employing an aryloxylation methodology. In this work, PFCB-segmented silicone polymers were prepared in high yield via the step-growth addition polymerization of discreetly sized PFCB prepolymers and carbinol silicones. These hybrid fluorosilicone polymer systems displayed a high degree of thermal stability as determined by the decomposition temperatures found using TGA analysis and were structurally characterized using 1H/19F NMR and GPC analysis. Thermal analysis by DSC proved the polymers were entirely amorphous with tunable glass transition temperatures. Film preparation employing spin casting demonstrated excellent solution processability. Work continues to post-functionalize these polymers for development of proton exchange membranes for fuel cell applications. Sunday, April 7, 2013 09:45 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 7 - Controlling surface energy and wetability with a light responsive linker system Christopher C Pattillo, [email protected], Philip J Costanzo. Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA 93407-0402, United States This work focuses on the development of stimuli-responsive surface coatings. By controlling the functionality, the surface energy can be manipulated to be either hydrophilic or hydrophobic, and the resulting change can regulate wet-ability and fluid flow. Here light responsive moieties were tethered to glass surfaces and upon exposure, cleavage was induced to change surface energy and wet-ability. Sunday, April 7, 2013 10:15 AM Undergraduate Research in Polymer Science (08:30 AM - 12:00 PM) Location: Hilton Riverside Room: Ste. A, Sec 6 POLY Scott Iacono, Sheng Lin-Gibson, Jeffrey Youngblood Sunday, April 7, 2013 8 - Release of encapsulated CA2+ ions from a polyelectrolyte multilayer system via mechanical stretching Amanda B Schubert, [email protected], Xiayun Huang,
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