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

活化 3,5-二氟芳香族体系的聚（亚芳基醚）：合成、官能化和表征

• 批准号: 1012392
• 负责人: Eric Fossum
• 金额: $ 33万
• 依托单位: Wright State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012392&HistoricalAwards=false
• 关键词: Poly; arylene; ether; Activated; Difluoro

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.

在这个由化学系大分子、超分子和纳米化学项目资助的项目中，赖特州立大学的Eric Fossum将探索亲核芳香取代中的间位活化在缩聚和制备具有新颖结构的逐步增长聚合物中的应用。 该方法是合成具有多种吸电子侧基的1，3-二氟取代芳基单体。 将研究这些单体对亲核芳族取代的反应性，并将有前途的系统转化为聚合反应。 所得聚合物将是几种众所周知的聚亚芳基的间位连接对应物。 将测定聚合物的热性能和机械性能。 更广泛的影响包括培训硕士和本科生，并在出版物和研讨会上传播成果。这项工作将提高我们对如何合成具有高热稳定性和有益机械性能的新聚合物（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。