Controlled Synthesis of Architecturally Complex Fluoropolymers

结构复杂的含氟聚合物的受控合成

• 批准号: 1309769
• 负责人: Alexandru Asandei
• 金额: $ 34.7万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1309769&HistoricalAwards=false
• 关键词: Controlled; Synthesis; Architecturally; Complex; Fluoropolymers

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, Alexandru Asandei of the University of Connecticut will develop new methods towards the controlled synthesis of fluorinated (co)polymers with complex architectures. First, convenient reaction conditions for the small scale polymerization of fluorinated monomers will be explored, and novel initiating methods, such radical generation directly from (fluoro)alkyl halides or hypervalent iodides, will be studied. Second, the development of catalyzed iodine degenerative transfer controlled radical polymerization of vinylidene fluoride to obtain "living"-like, narrow molecular weight distribution fluoropolymers will be examined. Third, the utility of the proposed chemistry will be demonstrated via the synthesis of well-defined, fluoromaterials with complex architectures. The broader impacts include advanced training for graduate and undergraduate students, collaborations with high school teachers on the development of a workshop with hands-on experimental work related to polymers and nanotechnology, dissemination via social media of the demonstrations developed in the workshop, and the broad dissemination of research results.Polymers are long chain organic molecules and are found in many facets of everyday life that utilize plastics, including food packaging, structural materials for automotive and aerospace transportation, and lightweight electronic devices. Polymers that contain the element, fluorine, (fluoropolymers) are versatile specialty plastics used anywhere from nonstick coatings, pipe liners, and O-rings for rocket engines to materials for fuel cell membranes. This research seeks to advance our knowledge in the synthesis of fluoropolymers and could lead to new types of advanced materials for a wide range of applications.

在这个由化学部大分子、超分子和纳米化学项目资助的项目中，康涅狄格大学的Alexandru Asandei将开发新的方法来控制合成具有复杂结构的氟化（co）聚合物。首先，将探索方便的小尺度氟化单体聚合反应条件，并研究新的引发方法，如直接由（氟）烷基卤化物或高价碘化物生成自由基。其次，研究了催化碘变性转移控制的偏氟乙烯自由基聚合的发展，以获得“活的”类，窄分子量分布的含氟聚合物。第三，所提出的化学的效用将通过具有复杂结构的定义明确的氟材料的合成来证明。更广泛的影响包括对研究生和本科生的高级培训，与高中教师合作开发一个与聚合物和纳米技术相关的动手实验工作的研讨会，通过社交媒体传播研讨会中开发的演示，以及广泛传播研究成果。聚合物是长链有机分子，在日常生活的许多方面都使用塑料，包括食品包装，汽车和航空航天运输的结构材料，以及轻质电子设备。含有氟元素的聚合物（含氟聚合物）是一种用途广泛的特种塑料，从不粘涂料、管道内衬、火箭发动机的o形环到燃料电池膜材料，用途广泛。这项研究旨在提高我们在含氟聚合物合成方面的知识，并可能导致新型先进材料的广泛应用。