SusCHEM: Supramolecular Assembly and Catalysis Applications of Organoborane Polymers

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，罗格斯大学纽瓦克分校化学系的弗里德·杰克尔教授正在研究一类含有元素硼的新型聚合物。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。在这个研究项目中，杰克尔教授正在研究合成含有特定含硼基团的聚合物的方法，然后利用这些聚合物作为化学反应的催化剂。这些催化剂的主要特点是稳定，易于回收利用。杰克尔教授在一个高度跨学科的研究环境中培养了一群多样化的本科生和研究生。罗格斯大学纽瓦克分校的学生们正在使用和维护用于聚合物研究和教育的仪器。jaeckle教授和他的小组还参与K-12的外展活动，并通过组织国际专题讨论会促进国际科学交流。有机硼烷以其路易斯酸性而闻名。当与受阻的路易斯碱基结合时，产生了所谓的“受挫路易斯对”，可以在小分子活化和各种催化过程中利用。然而，这些高价值催化剂的可回收版本的例子很少。杰克尔教授正在研究如何将功能有机硼烷附着在可溶性聚合物和具有易接近官能团的聚合物树脂上。目前正在研究两种目标结构：(1)高度缺电子的三芳基硼烷，它与路易斯碱协同作用，能够激活小分子，如二氢或硅烷：这些聚合物将作为亚胺、醛和酮的氢化和硅氢化的催化剂进行测试。(2)缺电子硼酸和相应的聚合物，有望通过氢键和刘易斯酸碱相互作用表现出不寻常的自组装特性：这些聚合物将作为酰胺化反应的催化剂进行测试。涉及K-12学生的外展活动正在计划中，包括通过ACS项目SEED让社会经济背景不利的高中生参与研究，以及组织聚合物和材料化学外展项目，让少数民族学生占主导地位的当地学校参与其中。

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program in the Division of Chemistry, Professor Frieder Jaekle of the Department of Chemistry at Rutgers University-Newark is studying a new class of polymers that contain the element, boron. 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. In this research project, Professor Jaekle is developing methods to synthesize polymers that contain specific boron-containing groups and then to utilize these polymers as catalysts for chemical reactions. Major features of these catalysts are that they are stable and easily recycled for further use. Professor Jaekle is training a diverse group of undergraduate and graduate students in a highly interdisciplinary research environment. The students are using and maintaining instrumentation for polymer research and education at Rutgers University-Newark. Professor Jaekle and his group are also involved in K-12 outreach activities and the stimulation of international scientific exchange through the organization of international symposia. Organoboranes are well-known for their Lewis acidic properties. When combined with hindered Lewis bases so-called "frustrated Lewis pairs" are generated that can be exploited in small molecule activation and in various catalytic processes. There are few examples of recyclable versions of these high-value catalysts, though. Professor Jaekle is studying how to attach functional organoboranes to both soluble polymers and polymer resins with easily accessible functional groups. Two target structures are being pursued: (1) highly electron-deficient triarylboranes that in concert with Lewis bases are capable of activating small molecules such as dihydrogen or silanes: These polymers will be tested as catalysts in the hydrogenation and hydrosilylation of imines, aldehydes and ketones. (2) electron-deficient borinic acids and corresponding polymers that are expected to display unusual self-assembly characteristics through hydrogen bonding and Lewis acid-base interactions: These polymers will be tested as catalysts in amidation reactions. Outreach activities involving K-12 students are being planned, including the participation of high school students from socio-economically disadvantaged backgrounds in research through the ACS Project SEED and the organization of Polymer and Materials Chemistry Outreach Programs that involve local schools with predominantly minority students.