Organic Conjugated Polymers Composed of Alternating Non-Fluorinated and Fluorinated Units: Novel Syntheses and Structure-Property Studies

由交替的非氟化和氟化单元组成的有机共轭聚合物：新颖的合成和结构性能研究

• 批准号: 0616759
• 负责人: Mark Watson
• 金额: $ 35.8万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-01 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0616759&HistoricalAwards=false
• 关键词: Organic; Conjugated; Polymers; Composed; Alternating

This award to Mark Watson of the University of Kentucky has as its goal the synthesis and structure-property studies of liquid crystalline and amorphous organic polymers with defined arrangements of fluorinated and non-fluorinated pi-electron systems. A recently discovered transition metal free synthetic method for the synthesis of these polymers will be used and the scope of this reaction will be examined. Copolymers containing arylene and heteroarylene, arylene- and heteroarylene-vinylene, and arylene- and heteroarylene-ethynylene groups will be studied. The related palladium catalyzed Hiyama-type couplings will also be investigated for the non-fluorinated polymers. The effect of specific fluorine substitution will be delineated from the proposed library of polymers via structure-property studies using X-ray diffraction, optical microscopy, calorimetry, spectrophotometry, and opto(electronic) characterization using simple electronic devices such as LEDs.Broader Impacts. By not using transition metals in the syntheses, a more green synthesis is presented since many of these transition metals are toxic and/or expensive and require separation and disposal of the transition metals. Further, students will be recruited from Appalachia, a disadvantaged part of the country, by regularly visiting regional institutions to meet with and talking to the students about this research. The PI will also partner with the Explorium of Lexington, KY, a children's museum, to develop and implement hands-on activities and exhibits which convey basic chemistry/physics of polymers, organic electronic materials, and nanoscience. These activities will also be incorporated into the Explorium's "Trunk Shows", which are conducted away from the facility to reach the underprivileged that may not be able to visit the museum site. To convey to children that research leading to positive impacts on society and the environment can originate from them, the PI will also compile a "low-tech" rotating exhibit of simply written anecdotal biographical sketches of UK researchers and scientists native to Appalachia, accompanied by photos of them in recent times and as children.

该奖项授予肯塔基州大学的Mark沃森，其目标是对具有氟化和非氟化π电子系统的定义排列的液晶和无定形有机聚合物进行合成和结构-性能研究。最近发现的过渡金属的合成方法，这些聚合物的合成将被使用，并将检查此反应的范围。将研究含有亚芳基和亚杂芳基、亚芳基-和亚杂芳基-亚乙烯基以及亚芳基-和亚杂芳基-亚乙炔基的共聚物。 相关的钯催化的Hiyama型耦合也将被调查的非氟化聚合物。具体氟取代的影响将通过使用X射线衍射、光学显微镜、量热法、分光光度法和使用简单电子设备（如LED）的光（电子）表征的结构-性能研究，从拟议的聚合物库中描绘出来。通过在合成中不使用过渡金属，呈现了更绿色的合成，因为这些过渡金属中的许多是有毒的和/或昂贵的，并且需要分离和处置过渡金属。 此外，学生将从阿巴拉契亚，该国的一个贫困地区，通过定期访问区域机构，以满足和交谈的学生对这项研究。PI还将与肯塔基州列克星敦的儿童博物馆Explorium合作，开发和实施实践活动和展览，传达聚合物，有机电子材料和纳米科学的基本化学/物理。这些活动也将被纳入探索馆的“主干展”，这些活动是在远离设施的地方进行的，以接触可能无法参观博物馆遗址的弱势群体。为了向孩子们传达对社会和环境产生积极影响的研究可以源于他们，PI还将编写一个“低技术”的旋转展览，其中包括英国研究人员和阿巴拉契亚本土科学家的简单轶事传记，并附有他们最近和儿童时期的照片。