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Conjugated Polymer Ultrathin Films: Synthesis, Electropatterning, and Nanopatterning of Precursor Polymers Rigoberto C. Advincula, University of Houston DMR 05-0443 5.

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  1. Conjugated Polymer Ultrathin Films: Synthesis, Electropatterning, and Nanopatterning of Precursor PolymersRigoberto C. Advincula, University of HoustonDMR 05-04435 We have successfully demonstrated the electropatterning and nanopatterning of conjugated polymer materials based on precursor polymers and SPM methods. Utilizing a number of polymers like polyvinylcarbazole and copolymers of carbazole and thiophene derivatized polyvinylphenols, we have demonstrated control of parameters such as writing speed, voltage bias, polymer composition, etc. This was demonstrated on both conducting Si-wafers and Au surfaces. We have reported interesting corona patterning phenomena based on polymer composition and cantilever tip residence time. The investigation of complex patterns and circuits are underway. Jegadesan, S.; Sindhu, S.; Advincula, R.*; Valiyaveettil, S.* "Electrochemically Nanopatterned Conducting Coronas of a Conjugated Polymer Precursor: SPM Parameters and Polymer Composition" Langmuir 2006, 22, 3807-3811. Taranekar, P.; Baba, A.; Fulghum, T. M.; Advincula, R.* "Conjugated Polymer Network Films from Precursor Polymers: Electrocopolymerization of a Binary Electroactive Monomer Composition" Macromolecules 2005, 38, 3679-3687.

  2. Conjugated Polymer Ultrathin Films: Synthesis, Electropatterning, and Nanopatterning of Precursor PolymersRigoberto C. Advincula, University of HoustonDMR 05-04435 • Outreach • Hosting of high school students in the Laboratory as part of the Advincula Group Summer Research Camp: Project SEED and Welch Foundation. • Hosted several undergraduate students through NSF-REU and UH.. • Worked with Alabama High School Teachers through summer research. • International Collaborations: Max Planck Instituted for Polymer Research, Germany, TUAT and Niigata University, Japan. Education Under these grants, two students are pursuing their Ph.D. degrees: Yushin Park (4th ) Tim Fulghum (5th year). A new graduate student Tina Newsome will join the project. Dr. Akira Baba, a current Post-Doc has also been supported by this grant. A number of undergraduate students have also benefited from the grant: Risheng Xu, Greg Krueger, and Gabriel Clyde. Dr. Advincula with the Advincula Research Group and summer undergraduate and high school students. Tina Newsome and Prof. Advincula

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