CAS: Terpene-Derived Polymers as Platforms for Structure-Property Studies of Sustainable Materials

CAS：萜烯衍生聚合物作为可持续材料结构性能研究的平台

• 批准号: 2206955
• 负责人: Johnathan Brantley
• 金额: $ 40.96万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2206955&HistoricalAwards=false
• 关键词: CAS; Terpene; Derived; Polymers; Platforms

NON-TECHNICAL SUMMARY:There is a critical need to understand the intrinsic relationships between chemical structure and the bulk physical properties of bio-based polymers. This is especially true so that biologically-derived materials can be designed to mirror the properties of petroleum-based plastics. Terpenes, which display a rich variety of structures, are valuable building blocks for preparing polymers that lend themselves to such systematic structure-property studies. This proposal entails the synthesis of novel polymers that are derived from terpene feedstocks, as well as the characterization of their fundamental properties in order to connect molecular and mesoscale structure to performance. Emphasis will be devoted to understanding how backbone connectivity and orientation modulate the thermal and mechanical properties of terpene-based (co)polymers. The insights achieved during this work will accelerate the development of biologically-derived plastics with precisely tailored properties and functions. Moreover, this work could shed new light on how unique structural elements can be leveraged to design a wide range of polymers with targeted properties. This research will be integrated with a broader effort to promote science literacy and engage academic and public communities at the state and national levels. A multifaceted plan will develop new curriculum initiatives, promote collaborative learning, and promote science literacy through web-based platforms (i.e., YouTube) by connecting research outcomes to real-world applications and challenges.TECHNICAL SUMMARY:There is a critical need to understand the intrinsic relationships between the rich structural complexity of bio-based polymers and their physical properties. This is especially true in the context of designing biologically-derived materials that can mirror the properties of petroleum-based plastics. Terpenoids, which display a wide range of carbocyclic structures, are valuable platforms for preparing polymers that lend themselves to systematic structure-property studies. Indeed, polymers comprised of rigid carbocyclic motifs (e.g., cyclic-olefin copolymers) are enticing materials that exhibit unique (and, in certain cases, predictable) physical properties. Unfortunately, the limited scope of carbocycles that can be incorporated within macromolecular architectures has significantly hindered efforts to systematically probe more subtle structure-property relationships. This research seeks to elucidate the interplay between constitutional isomerism, backbone stereochemistry, and bulk thermomechanical properties in terpenoid analogues of cyclic olefin (co)polymers. The work is expected to dramatically expand the chemical space available to polymer science and reveal fundamental insights into an unexplored family of biologically-derived polymers. The insights gained from this research will accelerate the development of biologically-derived plastics (including thermoplastic elastomers) with precisely tailored properties and functions. This research will be integrated with a broader effort to promote science literacy and engage academic and public communities at the state and national levels. A multifaceted plan will develop new curriculum initiatives, promote collaborative learning, and promote science literacy through web-based platforms (i.e., YouTube) by connecting research outcomes to real-world applications and challenges..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.

非技术性总结：迫切需要了解生物基聚合物的化学结构和本体物理性质之间的内在关系。尤其是生物衍生材料可以设计成反映石油基塑料的特性。萜烯类化合物具有丰富的结构，是制备聚合物的重要组成部分，可用于此类系统的结构-性质研究。该建议需要合成衍生自萜烯原料的新型聚合物，以及表征其基本性质，以将分子和介观结构与性能联系起来。重点将致力于了解如何骨干连接和取向调制的热和机械性能的三元共聚物为基础的（共）聚合物。在这项工作中获得的见解将加速开发具有精确定制特性和功能的生物衍生塑料。此外，这项工作可以揭示如何利用独特的结构元素来设计具有目标特性的各种聚合物。这项研究将与更广泛的努力相结合，以促进科学素养，并在州和国家一级参与学术和公共社区。一个多方面的计划将制定新的课程倡议，促进协作学习，并通过基于网络的平台（即，技术概要：我们迫切需要了解生物基聚合物丰富的结构复杂性与其物理性能之间的内在关系。在设计可以反映石油基塑料特性的生物衍生材料时尤其如此。萜类化合物具有广泛的碳环结构，是制备聚合物的有价值的平台，可用于系统的结构-性质研究。实际上，包含刚性碳环基序的聚合物（例如，环烯烃共聚物）是具有独特（和在某些情况下可预测的）物理性质的诱人材料。不幸的是，有限的范围内的碳环，可以纳入大分子结构显着阻碍了努力，系统地探测更微妙的结构-性质的关系。本研究旨在阐明环烯烃（共）聚合物的萜类化合物类似物的结构异构性，骨架立体化学和本体热机械性能之间的相互作用。这项工作预计将大大扩展聚合物科学的化学空间，并揭示对生物衍生聚合物未开发家族的基本见解。从这项研究中获得的见解将加速开发具有精确定制特性和功能的生物衍生塑料（包括热塑性弹性体）。这项研究将与更广泛的努力相结合，以促进科学素养，并在州和国家一级参与学术和公共社区。一个多方面的计划将制定新的课程倡议，促进协作学习，并通过基于网络的平台（即，YouTube）通过将研究成果与现实世界的应用和挑战联系起来。该奖项反映了NSF的法定使命，并被认为是值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估的支持。

项目成果

Exploring the influence of rigid carbocycles on terpenoid copolymer properties

探讨刚性碳环对萜类共聚物性能的影响

• DOI: 10.1002/pol.20230125
• 发表时间: 2023
• 期刊: Journal of Polymer Science
• 影响因子: 3.4
• 作者: Galan, Nicholas J.;Fried, Alan D.;Cromer, Chase E.;Fish, Abigail;Coughlin, Dominic R.;Brantley, Johnathan N.
• 通讯作者: Brantley, Johnathan N.