LEAPS-MPS: Photodynamic Hybrid Polymer Network Sponges and their Structure-Property Relationships

LEAPS-MPS：光动力杂化聚合物网络海绵及其结构-性能关系

基本信息

批准号：
2137672
负责人：
Joseph Furgal
金额：
$ 24.71万
依托单位：
Bowling Green State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-01 至 2025-08-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2137672&HistoricalAwards=false
关键词：
LEAPS MPS Photodynamic Hybrid Polymer

项目摘要

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).NON-TECHNICAL SUMMARY:The goal of this research is to develop a fundamental understanding of a series of selective, light activated smart material sponges useful for environmental remediation of omnipresent toxic pollutants such as perfluoroalkyl (PFAS) “forever chemicals.” This project will also meld together a diverse team of researchers to carry out this work and to influence, train, and mentor a broad representation of middle, high school and undergraduate students to recruit and train them for future success in the U.S. science workforce.Specifically the PI's group will synthesize silicon-based light-responsive sponges that can capture specific substances and undergo unique reversible shrinking phenomena to then expel them on demand with certain light wavelengths and energies. This light-driven process is quite complex in solid materials such as silicon networks and this research will aid in gaining an understanding of how these responsive sponges behave when having different building blocks that either change shape or break apart using light. The investigation will also determine how the structures of the material influence their behavior and ability to selectively soak up and release explicit substances on demand. Lastly, their abilities and efficiencies in remediation of PFAS type compounds, which are difficult to selectively isolate from water sources, will be detailed. Racially and ethnically diverse high school and undergraduate students will have the opportunity to contribute to the development of this project and gain laboratory training with scientists at BGSU to aid in the diversification of the student body toward science-based careers. A series of workshops focused on smart light responsive materials, environmental remediation and health priorities as well as the opportunity to spend time shadowing student scientists in the laboratory will be conducted in local areas with high concentrations of under-represented minorities (Warren, MI / Toledo, OH). These opportunities will assist in both attracting and retaining an expansive array of scientists. TECHNICAL SUMMARY:The PI and his group will develop reusable and robust high porosity "smart" sponges that can experience large volume changes after light irradiation to ultimately be used for environmental remediation of persistent pollutants (e.g. PFAS). Gels and solids of Q-silsesquioxane networks will be cross-linked with designed photoswitchable and dynamic groups that feature allyl or vinyl functionalization. Structure-property relationships of these novel photoresponsive materials will be determined to improve photoresponsive behaviors, determine what makes a high-performance material and its substance uptake/release ability (i.e. petrochemicals). Silsesquioxanes’ use as dynamic materials remains less explored than traditional polymers due to the intricacies of functionalization and silsesquioxanes’ inherent rigidity, despite the prevalence of silicone materials in a variety of household and industrial products. These materials offer advantages over typical photodynamic sponges (i.e. hydrogels, organogels), by overcoming synthetic, structural, and actuation limitations. These include increased environmental stabilities and better mechanical properties due to siloxane cores, excellent control of tunability to work with many target substances, and facile structural assembly. This research will also expand the exploration of improved methods for the capture of cancer-causing persistent “forever chemicals” such as perfluoroalkyl substances (PFAS) for the improvement of human and environmental health. For educational initiatives, university students will participate in scientific endeavors with regional companies to build career development relationships and experience real-world scientific challenges as part of public impact outreach. Mentorship will be given to a diverse set of middle and high school students as they participate in polymer workshops and laboratory research experiences to provide insight on the importance of science and how the proposed research may impact society on an individual and broader scale. These initiatives aim to increase youth involvement in the STEM fields by hands-on interactions, connections, and working with a diverse group of scientists from various backgrounds..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.

该病房是根据2021年《美国救援计划法》的全部或部分资助的。没有技术摘要：o对一系列选择性的，光激活的智能材料的了解的目的是对环境修复全能污染物（如纯氟烷基）有用的。（PFAS）此Proj还将融合一个多样化的研究人员，以综合基于硅的光海绵，以捕获物质，并在某些光线和一定的光线上进行Xpel能量在硅网络等固体材料中非常复杂，这项研究将有助于了解这些响应式海绵的行为，当具有不同的构建块，以改变形状或使用光线破裂还可以详细介绍材料的能力和效率，并详细介绍材料的行为和有选择性的物质的能力。响应材料，环境修复和健康优先事项以及实验室中的学生科学家的合适时间，将由少数群体的地点群体集中，俄亥俄州MI / TOLEDO，俄亥俄州）。 Pi和他的小组将避开可重复使用的高孔“智能”海绵，在光照射后会经历大量变化，以最终用于环境补救剂污染物（例如，PFAS）。。（即水凝胶，有机凝胶），由于siloxane核心，出色的核心，可调性目标物质和娱乐性的结构组件，通过合成，结构和驱动限制。 “永远的化学物质”，例如对人类和环境健康的改善，用于建立职业发展的现实科学挑战。中学和高中生作为在聚合物研讨会上的故事和实验性的经验，以提供洞察力的经济状况，以及拟议的研究如何在个人和更广泛的规模上影响社会。联系，并与来自各种背景的各种科学家一起工作。该奖项反映了NSF'SF'SSF'SSSSION D通过基金会的知识分子优点和更广泛的影响评估标准，通过评估通过评估来取消支持。