Polyphilic Fluoroalkyl-Substituted Polythiophenes

多亲氟烷基取代的聚噻吩

• 批准号: 0347832
• 负责人: David Collard
• 金额: --
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0347832&HistoricalAwards=false
• 关键词: Polyphilic; Fluoroalkyl; Substituted; Polythiophenes

The polyphilicity of new fluoroalkyl-substituted polythiophenes provides the means to prepare highly ordered and oriented conjugated organic materials. The combination oftunable electronic properties, solubility, and supramolecular assembly ofsemifluorinated materials allows us to address a number of criteria in the design of conjugated polymersfor use in electronic devices. The study will establish structure-property relationships forthe formation of assemblies in solution, in liquid crystalline mesophases and in the solidstage. In addition, the study of polyphilic polymers will provide insight into developmentof methods to attain control of the orientation of molecules at surfaces, a subject which ispoorly understood at present but one of great importance in the development ofconjugated organic materials for use in devices. We will also explore the nature of thepolyanions (i.e., delocalization, mobility) formed by reduction of conjugated polymerssubstituted by electron withdrawing perfluoroalkyl groups, and the potential forn-channel conduction. Finally, the solubility of fluoroalkyl-substituted conjugated polymersin supercritical carbon dioxide will be investigated to allow for processing of these technologically important materials in a "green solvent".The proposed study will lead to new design motifs which may be applied to other conjugated polymers, a field of intense interest in the development of new electronic, optical and electrooptical technologies. It provides new materials for incorporation into prototypical devices, and will provide new physical insights into the development of ordered and oriented materials. The study provides exceptional opportunities for training of graduate and undergraduate students in a variety of techniques and fields: organic synthesis and characterization, polymerization chemistry, characterization of materials, and device fabrication of characterization. These students will benefit from outstanding facilities and the interdisciplinary environment present on the Georgia Tech campus, as well as the proposed collaboration with Dr. Z. Bao. Both Georgia Tech and the PI's group have a strong record of training graduates from underrepresented minority groups. Researchers will be recruited to this project from the diverse student population present in the School of Chemistry and Biochemistry at Georgia Tech.

新型氟烷基取代聚噻吩的多亲性为制备高度有序和定向的共轭有机材料提供了手段。 半氟化材料的可调电子性质、溶解性和超分子组装的结合使我们能够在设计用于电子器件的共轭聚合物时解决许多标准。 该研究将建立在溶液中，在液晶中间相和在固相组装形成的结构-性能关系。 此外，对多亲性聚合物的研究将为开发控制表面分子取向的方法提供深入的了解，这是一个目前还不太清楚的主题，但在开发用于器件的共轭有机材料方面非常重要。 我们还将探索聚阴离子的性质（即，离域，迁移率）形成的共轭polymerssubstituted由吸电子全氟烷基基团，和潜在的n-沟道导电。 最后，氟烷基取代的共轭聚合物在超临界二氧化碳中的溶解度将被研究，以允许在“绿色溶剂”中加工这些技术上重要的材料。拟议的研究将导致新的设计图案，可应用于其他共轭聚合物，在新的电子，光学和电光技术的发展领域的强烈兴趣。 它提供了新的材料纳入原型设备，并将提供新的物理见解的发展有序和定向材料。 该研究为研究生和本科生在各种技术和领域的培训提供了绝佳的机会：有机合成和表征，聚合化学，材料表征和表征设备制造。 这些学生将受益于格鲁吉亚理工学院校园内的优秀设施和跨学科环境，以及与Z博士的拟议合作。豹 格鲁吉亚理工学院和PI的团队在培训代表性不足的少数民族毕业生方面都有很好的记录。 研究人员将从格鲁吉亚理工学院化学与生物化学学院的不同学生群体中招募到这个项目中。