RUI : Investigation into dynamic-covalent linkages through the use of Diels-Alder chemistry and controlled radical polymerization techniques

RUI：通过使用 Diels-Alder 化学和受控自由基聚合技术研究动态共价键

• 批准号: 1709640
• 负责人: Philip Costanzo
• 金额: $ 20.91万
• 依托单位: California Polytechnic State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-06-15 至 2020-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1709640&HistoricalAwards=false
• 关键词: RUI; Investigation; into; dynamic; covalent

Synthetic polymers (plastics) are widely used in our daily life. The properties of polymers are governed by their chemical structures and can be tailored for different applications. In this research project, Professor Costanzo of California Polytechnic State University, San Luis Obispo, develops synthetic approaches to prepare novel polymers with properties that can be changed reversibly with temperature. The polymer strands are designed to have chemical structures that can be pulled apart at one temperature and snapped back together at a different temperature. The opportunity to engage undergraduates in fundamental research helps shape and create the next generation of scientists. Additionally, outreach programs help intertwine undergraduate research and teaching. These educational programs provide opportunities for professional development for K-12 teachers and for undergraduate students to be involved in the development of inquiry-based teaching modules for elementary and middle school students.The Macromolecular, Supramolecular and Nanochemistry Program supports the research group of Prof. Costanzo to investigate how dynamic-covalent linkages can be incorporated into polymer systems to enable switchability in polymer topology and bestow thermal responsive properties. The specific objectives of this project are: 1) to synthesize new Diels-Alder chemistry components, including fulvenes and dicyanoalkenes; 2) to develop polymerization strategies for precise placement of the new Diels-Alder linkages within polymer matrices for investigating the dissociation and reassembly processes; and 3) to demonstrate the use of interchangeable Diels-Alder linkages to invert compositional components of polymeric structures.

合成聚合物（塑料）在我们的日常生活中被广泛使用。 聚合物的性质由其化学结构决定，可以针对不同的应用进行定制。 在这个研究项目中，圣路易斯奥比斯波加州理工州立大学的Costanzo教授开发了合成方法，以制备具有可随温度可逆变化的特性的新型聚合物。 聚合物股线被设计成具有化学结构，可以在一个温度下被拉开，并在不同的温度下迅速恢复。 让本科生参与基础研究的机会有助于塑造和培养下一代科学家。此外，外展计划有助于实习生的研究和教学。 这些教育项目为K-12教师提供专业发展的机会，并为本科生提供参与中小学学生探究式教学模块开发的机会。超分子和纳米化学计划支持教授的研究小组。可以将共价键结合到聚合物体系中以使聚合物拓扑结构具有可转换性并赋予热响应性能。 该项目的具体目标是：1）合成新的Diels-Alder化学成分，包括富烯和二氰基烯烃; 2）开发聚合策略，用于在聚合物基质中精确放置新的Diels-Alder键，以研究解离和重组过程; 3）演示使用可互换的Diels-Alder键来反转聚合物结构的组成成分。

项目成果

Unraveling Polymer Structures with RAFT Polymerization and Diels–Alder Chemistry

• DOI: 10.1021/acs.macromol.8b01967
• 发表时间: 2019-01
• 期刊: Macromolecules
• 影响因子: 5.5
• 作者: E. Wilborn;C. Gregory;Craig A. Machado;Taylor M. Page;W. Ramos;McKenzie A. Hunter;Kiersten M. Smith

Trials and adventures of the synthesis and evaluation of amphiphilic graft copolymers with dynamic topology

• DOI: 10.1002/pol.20220247
• 发表时间: 2022-08-01
• 期刊: JOURNAL OF POLYMER SCIENCE
• 影响因子: 3.4
• 作者: Kumler, Margaret S.;Skinner, Nicole M.;Costanzo, Philip J.
• 通讯作者: Costanzo, Philip J.