CAREER: Elucidating the Impact of Side-Chain Topology on the Structure-Property Relationship in Bottlebrush Polymers

职业：阐明侧链拓扑对洗瓶刷聚合物结构-性能关系的影响

• 批准号: 2340664
• 负责人: Jimmy Lawrence
• 金额: $ 64万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-08-01 至 2029-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2340664&HistoricalAwards=false
• 关键词: CAREER; Elucidating; Impact; Side; Chain

PART 1: NON-TECHNICAL SUMMARYThis project focuses on the study of bottlebrush polymers (BBPs), a type of synthetic polymer that has unique, densely branched molecular structures. These polymers have potential applications in areas such as healthcare, electronics, and sustainability. The key challenge is understanding and controlling the variable structures of BBPs to create new properties and functions. This research seeks to develop methods for creating BBPs with precise molecular characteristics, aiming to establish a clear connection between their designed molecular architecture and their physical properties. Furthermore, the project aims to engage and educate the next generation of scientists, particularly focusing on underrepresented groups in STEM. In developing educational programs and resources, the project aims to enhance diversity in STEM fields in Louisiana and prepare students for future careers by providing practical experiences and knowledge in polymer science.PART 2: TECHNICAL SUMMARYThe planned research aims at a comprehensive understanding of the structure-property relationships of precision synthetic bottlebrush polymers (BBPs). Specifically, it will develop strategies for preparing BBPs with discrete side chains, functional moieties, and fully discrete structures/derivatives. The goal is to determine how the structural precision of building blocks influences the physical and transport properties of the resulting BBPs. Additionally, the project will investigate topology-driven molecular principles governing thermomechanical properties of BBPs with highly strained backbones and multiblock architectures. This could allow for the control of glass transition behavior based solely on side-chain physics. The third objective is to study the impact of designer topology on new properties and assembly behaviors with an emphasis on multiblocks and stimuli-activated systems. Beyond scientific objectives, there are broader impacts aimed at promoting STEM diversity in Louisiana through educational initiatives including an open-source electronic workbook on polymers, a research experience program for K-12 and undergraduate students, and bi-annual academic-industry workshops discussing advances in polymer science..This project is jointly funded by the Polymers Program in the Division of Materials Research (DMR) and the Established Program to Stimulate Competitive Research (EPSCoR).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.

第1部分：非技术摘要项目的项目侧重于研究瓶洗聚合物（BBP），这是一种具有独特的，密集的分支分子结构的合成聚合物。这些聚合物在医疗保健，电子和可持续性等领域具有潜在的应用。关键挑战是理解和控制BBP的变量结构以创建新的属性和功能。这项研究旨在开发创建具有精确分子特征的BBP的方法，旨在建立其设计的分子体系结构与物理特性之间的明确联系。此外，该项目旨在参与和教育下一代科学家，尤其是专注于STEM中代表性不足的群体。该项目旨在在开发教育计划和资源中，旨在增强路易斯安那州的STEM领域的多样性，并通过提供聚合物科学中的实际经验和知识来为学生做好准备。具体而言，它将制定策略，以制备具有离散侧链，功能部分和完全离散的结构/导数的BBP。目的是确定构件的结构精度如何影响所得BBP的物理和运输特性。此外，该项目将研究以高度紧张的骨干和多块结构的BBP的热机械性能的拓扑驱动的分子原理。这可以允许仅基于侧链物理学控制玻璃过渡行为。第三个目标是研究设计师拓扑对新属性和组装行为的影响，重点是多块和刺激激活系统。 Beyond scientific objectives, there are broader impacts aimed at promoting STEM diversity in Louisiana through educational initiatives including an open-source electronic workbook on polymers, a research experience program for K-12 and undergraduate students, and bi-annual academic-industry workshops discussing advances in polymer science..This project is jointly funded by the Polymers Program in the Division of Materials Research (DMR) and the Established Program to Stimulate竞争性研究（EPSCOR）。该奖项反映了NSF的法定任务，并被认为是使用基金会的知识分子优点和更广泛影响的评论标准的评估值得支持的。