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

该奖项授予肯塔基大学的马克·沃森（Mark Watson），其目标是对具有氟化和非氟化电子系统的明确排列的液晶和非晶态有机聚合物的合成和结构性质进行研究。本文将使用最近发现的一种不含过渡金属的合成方法来合成这些聚合物，并对该反应的范围进行研究。将研究含有芳烯和异芳烯、芳烯和异芳烯-乙烯以及芳烯和异芳烯-乙烯基团的共聚物。此外，还将研究非氟化聚合物中钯催化的hiyama型偶联。特定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）进行光电（电子）表征的结构-性质研究，从拟议的聚合物库中描绘出来。更广泛的影响。由于在合成中不使用过渡金属，因此提出了一种更绿色的合成方法，因为许多过渡金属有毒和/或昂贵，并且需要分离和处理过渡金属。此外，通过定期访问地区机构与学生见面并与他们讨论这项研究，将从该国的弱势地区阿巴拉契亚招募学生。PI还将与肯塔基州列克星敦探索博物馆（一家儿童博物馆）合作，开发和实施实践活动和展览，以传达聚合物、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Explorium的“主干展览”，这些展览将在设施之外进行，以接触到可能无法参观博物馆现场的弱势群体。为了让孩子们知道，对社会和环境产生积极影响的研究可以来自他们，PI还将编制一个“低技术”的轮转展览，展示阿巴拉契亚地区的英国研究人员和科学家的简单传记小品，并附上他们最近和小时候的照片。

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.