CAREER: CAS: Structured Assemblies of Block Copolymers and Macrocycles with the Novel Halogen Bond

职业：CAS：具有新型卤素键的嵌段共聚物和大环化合物的结构化组装体

• 批准号: 2236984
• 负责人: Ngong Beyeh
• 金额: $ 70万
• 依托单位: Oakland University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-15 至 2028-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2236984&HistoricalAwards=false
• 关键词: CAREER; CAS; Structured; Assemblies; Block

With the support of the Macromolecular, Supramolecular and Nanochemistry Program in the Division of Chemistry, Ngong Kodiah Beyeh of Oakland University in Rochester, Michigan, will develop a novel approach that combines supramolecular chemistry and polymer science to assemble polymeric structures that consist of organic macrocycles with persistent internal cavities. Analogous to the widely researched “hydrogen” bonds that play important roles in many natural and synthetic systems, “halogen” bonds could serve as recognition sites holding together the components in complex structures, but they are less explored. This project will provide new fundamental knowledge on the roles of halogen bonds and investigate the properties of this new class of functional polymers. The internal cavities of these porous structures may serve as recognition sites for sensing, uptake, separation, or storage of specific guest molecules, e.g., methane and carbon dioxide. The reversible formation of halogen bonds bestows self-healing properties and the possibility of recycling. This project will also incorporate educational training and mentoring of the next generation of a diverse workforce in science and technology. The multidisciplinary nature of this project ensures that students, including high school students, will develop broad skills in both organic and materials chemistry. Student participation in the project, including workshops and colloquia focusing on career options, will foster their pursuit of careers in science.An important objective of this project is to fully elucidate the capabilities and properties of halogen bonds as recognition "sticky" sites in the assembly of functional polymeric structures. Dr. Beyeh and his students will synthesize several libraries of resorcinarene macrocycles and block copolymers. The resorcinarene macrocycles, which provide persistent internal cavities for guest binding, will be decorated with functional groups to form halogen-bonds with different block copolymers. The halogen-bonded hybrid structures will be fully characterized. The halogen-bonding properties, stability, and self-healing efficiency of these hybrid structures will be studied. Their morphology, porosity, and guest-uptake properties will be evaluated. If successful, this project will provide new fundamental knowledge on the roles of halogen bonds and their properties in building new classes of functional polymers.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在化学系的大分子，超分子和纳米化学计划的支持下，密歇根州罗切斯特奥克兰大学的Ngong Kodiah Beyeh将开发一种新颖的方法，将一种新颖的方法结合起来，将超分子化学和聚合物科学结合起来，与有机体cavities组成的聚合物结构，将其组成，由有机体cavers cavers cassentcy Cavers cassentsentsentsentersentersentersentsentersentersentersentsent。类似于广泛研究的“氢”键在许多天然和合成系统中起重要作用的“氢”键，“卤素”键可以用作识别位点，将组件融合在一起复杂的结构中，但探索较少。该项目将提供有关卤素键作用的新基本知识，并研究这种新的功能聚合物的特性。这些多孔结构的内部空腔可能是特定客体分子（例如甲烷和二氧化碳）感测，摄取，分离或存储的识别位点。卤素键的可逆形成赋予了自我修复特性和回收的可能性。该项目还将纳入下一代科学技术领域潜水员劳动力的教育培训和心理化。该项目的多学科性质可确保包括高中生在内的学生将在有机和材料化学方面发展广泛的技能。学生参与该项目的参与，包括专注于职业选择的研讨会和校长，将促进他们从事科学职业的追求。该项目的一个重要目标是充分阐明卤素债券作为功能聚合结构组装的“粘性”地点的卤素债券的能力和特性。 Beyeh博士和他的学生将综合几个植物菌群和块共聚物的库。为客人结合提供持续的内部空腔的紫orcinarene大环将以功能组装饰，以形成具有不同块共聚物的卤素键。卤素键合的杂种结构将被充分表征。将研究这些杂交结构的卤素键合，稳定性和自我修复效率。将评估它们的形态，孔隙率和宾客摄取特性。如果成功的话，该项目将提供有关卤素债券及其在建立新的功能聚合物中的作用的新基本知识。该奖项反映了NSF的法定任务，并通过使用该基金会的知识分子的优点和更广泛的影响来评估NSF的法定任务。