RUI: Collaborative Research: Greener Processes for the Sustainable Development of Bio-Based Polyesters

RUI：合作研究：生物基聚酯可持续发展的绿色工艺

• 批准号: 1934368
• 负责人: Lindsay Soh
• 金额: $ 16.2万
• 依托单位: Lafayette College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1934368&HistoricalAwards=false
• 关键词: RUI; Collaborative; Research; Greener; Processes; RUI; Collaborative; Research; Greener; Processes

The development of green separation and processing strategies to produce bio-based polymers is beneficial to ensure environmentally sustainable materials for future generations. Current monomer production methods typically use petroleum and require hazardous processes. Biomass offers diverse alternate starting materials for polymer chemistries. However, current strategies for isolating monomers from biomass and their polymerizations are limited and often not sustainable in practice. The development of sustainable bio-based polymers requires a holistic approach that tackles key sustainability issues associated with monomer sourcing and extraction, polymer creation, and end-point feedback. This project seeks to utilize residual biomass sources, green extraction techniques, and appropriate polymer syntheses to incorporate structurally rigid monomers (i.e. pentacyclic triterpenols) into the backbones of polymer networks and elucidate the fundamental relationship between processing, structure, and properties of these polyesters derived from natural feedstocks. Key considerations include the methodologies by which feedstocks are sourced, separated, and subsequently translated into useful polymers. Ultimately, knowledge gained will provide impetus for and education in the transformation of bio-refined products into macromolecules that meet the diverse needs of society.Specific objectives target a fundamental understanding of the processing-structure-property relationships of bio-based polymers derived from green separation techniques. The project will holistically consider the choice of feedstock, extraction technique, polymer synthesis, and polymer degradation to ultimately produce environmentally sustainable processes and products. An iterative approach will use sustainability metrics throughout and will evaluate these metrics to determine the overall process viability from economic and environmental perspectives. By integrating process sustainability metrics into traditional processing-structure-property relationship methodology used in polymer development, the approach will shift the conventional polymer design paradigm to comprehensively address both polymer function and sustainability via the following interconnected, concurrent aims: (I) Leverage green solvent extraction to produce enriched monomer fractions from renewable feedstocks, (II) Sustainably develop polyester thermoplastics and thermosets derived from fractionated biomass, and (III) Evaluate process technoeconomic and life cycle sustainability.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.

制定生产基于生物的聚合物的绿色分离和加工策略有益于确保对子孙后代的环境可持续材料。当前的单体生产方法通常使用石油，需要危险过程。生物质为聚合物化学分配提供了多种替代起始材料。但是，当前将单体与生物量隔离及其聚合的策略有限，并且在实践中通常是不可持续的。可持续生物的聚合物的开发需要一种整体方法，可以解决与单体采购和提取，聚合物创建和终点反馈相关的关键可持续性问题。该项目旨在利用残留的生物量来源，绿色提取技术和合适的聚合物合成，以将结构上的刚性单体（即五边形三甲醇）纳入聚合物网络的骨架中，并阐明从这些天然饲料的处理，结构，结构，结构，结构，结构，结构和属性之间的基本关系。主要考虑因素包括将原料采购，分离和随后转化为有用聚合物的方法。最终，获得的知识将为满足社会各种需求的生物精制产品转化为大分子的转化提供动力和教育。特定的目标是针对对从绿色分离技术衍生的基于生物的聚合物的加工结构 - 培训关系的基本了解。该项目将整体考虑原料，提取技术，聚合物合成和聚合物降解的选择，以最终产生环境可持续的过程和产品。一种迭代方法将在整个过程中使用可持续性指标，并将评估这些指标，以确定从经济和环境的角度来确定整体过程的可行性。通过将过程的可持续性度量集成到聚合物开发中使用的传统加工结构 - 培训关系方法中，该方法将转移传统的聚合物设计范式，以全面地解决聚合物功能和可持续性，通过以下相互联系的，同意的目的：（i）绿色溶液的供应（I II），从源自分馏的生物质和（iii）评估过程经济和生命周期可持续性的热固体。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响评估标准，认为值得通过评估来支持。