Poly(arylene ether)s from Activated 3,5-Difluoro Aromatic Systems: Synthesis, Functionalization, and Characterization

赖特州立大学的Eric Fossum将在该项目中研究亲核芳香族取代的元活化在缩聚中的应用，以及制备具有新结构的阶梯生长聚合物。该方法是合成具有多种悬垂吸电子基团的1,3-二氟取代芳基单体。这些单体对亲核芳香取代的反应性将被研究，有前途的体系将被转化为聚合反应。所得到的聚合物将是几个众所周知的聚苯乙烯类的元链对应物。将测定聚合物的热性能和机械性能。更广泛的影响包括培养硕士生和本科生，并在出版物和研讨会上传播成果。这项工作将增强我们对如何合成具有高热稳定性和有益机械性能的新型聚合物（塑料）的基本理解。这些研究的结果可能会对工程塑料的重要应用产生许多重要的长期影响，包括汽车、包装和航空航天工业。

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, Eric Fossum of Wright State University will explore the application of meta-activation in nucleophilic aromatic substitution to polycondensation and the preparation of step-growth polymers with novel structures. The approach is to synthesize 1,3-difluoro-substituted aryl monomers with a variety of pendant electron withdrawing groups. The reactivity of these monomers towards nucleophilic aromatic substitution will be studied and promising systems will be translated into polymerization reactions. The resulting polymers would be meta-linked counterparts to several well known classes of polyarylenes. The thermal and mechanical properties of the polymers will be determined. The broader impacts involve training master's and undergraduate students and disseminating results in publications and seminars. This work will enhance our fundamental understanding about how to synthesize new polymers (plastics) with high thermal stability and beneficial mechanical properties. The results of these studies could have many important long term impacts on applications in which engineering plastics are important, including automotive, packaging, and aerospace industries.