Determination of Fundamental Structure-Topology-Morphology-Properties for Naturally-derived Recyclable Polymer Materials Designed to Address Environmental and Societal Challenges

确定旨在应对环境和社会挑战的天然可回收聚合物材料的基本结构-拓扑-形态-性能

基本信息

批准号：
1905818
负责人：
Karen Wooley
金额：
$ 75万
依托单位：
Texas A&M University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-08-01 至 2025-07-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1905818&HistoricalAwards=false
关键词：
Determination Fundamental Structure Topology Morphology

项目摘要

PART 1: NON-TECHNICAL SUMMARYThe global plastics pollution problem is at a critical point. Polymer materials (plastics) impact society in everyday products that facilitate safety, health and welfare, and also beauty, pleasure and convenience. Although some plastic materials are meant to be durable and possess long-term stability (e.g. tires, plastic parts for automobiles, helmets, etc.), the full polymer life cycle should be considered during the initial design stages, to incorporate mechanisms for recyclability once the function of the material has been completed. The negative environmental effects of plastic accumulation and persistence are becoming of increasing importance. The expected broad impact of this work will be in the advancement of naturally-derived polymer materials that are designed to possess complexities that allow for them to exhibit unique properties, and have in-built mechanisms for their depolymerization and recycling. A focus will be upon constructing the materials to behave as super-absorbent and tough hydrogels, and rigorous studies will be conducted to determine the effectiveness of the polymer materials to meet needs associated with global water resource challenges, and technological challenges of reducing friction, biofouling, and ice formation. Significant outcomes of this work are expected to be an advanced knowledge and awareness by future generations of scientists who will consider the full life cycle of the technologies that they develop. PART 2: TECHNICAL SUMMARYThe overall objective is to conduct fundamental studies that lead to advanced understanding of the composition-structure-topology-morphology effects for dual covalently and non-covalently (supramolecularly) crosslinked polymer materials, with an interest in developing mechanically-robust functional polymers that are derived from natural feedstocks and designed to exhibit hydrogel, anti-fouling, anti-icing, pollutant sequestering and other behaviors for diverse applications that address societal challenges, while also being recyclable to limit adverse environmental impacts of the materials long-term. Glucose will serve as the primary building block from which topologically-complex slide-ring polymer networks will be constructed, having both covalent and supramolecular interactions to result in dynamic, mechanically-robust hydrogel behaviors, with further extension to polymeric high internal phase emulsion (polyHIPE) materials for superabsorbency and high porosity. Fundamental studies will be performed to determine the properties of the intact materials, followed by investigation of their intentional depolymerization-based recyclability and long-term hydrolytic degradability. It is hypothesized that systematic investigation of networks that combine components of covalent linkages, supramolecular host-guest interactions, slide-ring topology and polyHIPE morphology will enhance the fundamental understanding of composition-structure-topology-morphology-properties relationships and lead to advanced materials that are capable of ultra-high water uptake kinetics and capacity, while exhibiting dynamic, responsive physicochemical and mechanical behaviors for broad applications. Importantly, techniques to build such materials from naturally-sourced feedstocks and with in-built depolymerization and disassembly routes will be developed to advance sustainability and recyclability.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：非技术摘要全球塑料污染问题正处于关键时刻。聚合物材料（塑料）通过日常产品影响社会，促进安全、健康和福利，以及美观、愉悦和便利。尽管某些塑料材料应该耐用并具有长期稳定性（例如轮胎、汽车塑料部件、头盔等），但在初始设计阶段应考虑整个聚合物生命周期，一旦使用后就应纳入可回收机制材料的功能已经完成。塑料积累和持久性对环境的负面影响变得越来越重要。这项工作的预期广泛影响将是促进天然衍生聚合物材料的发展，这些材料被设计为具有复杂性，使其能够表现出独特的性能，并具有解聚和回收的内置机制。重点将放在构建具有超吸收性和坚韧水凝胶的材料，并将进行严格的研究以确定聚合物材料的有效性，以满足与全球水资源挑战以及减少摩擦、生物污垢等技术挑战相关的需求。和冰的形成。这项工作的重大成果预计将是未来几代科学家的先进知识和意识，他们将考虑他们开发的技术的整个生命周期。第 2 部分：技术摘要总体目标是进行基础研究，以深入了解双共价和非共价（超分子）交联聚合物材料的组成-结构-拓扑-形态效应，并有兴趣开发机械鲁棒的功能性材料源自天然原料的聚合物，旨在表现出水凝胶、防污、防冰、污染物隔离和其他行为，适用于解决社会问题的各种应用挑战，同时还可以回收利用，以限制材料的长期不利环境影响。葡萄糖将作为主要构建块，构建拓扑复杂的滑环聚合物网络，具有共价和超分子相互作用，从而产生动态、机械鲁棒的水凝胶行为，并进一步扩展到聚合物高内相乳液（polyHIPE））具有超吸收性和高孔隙率的材料。将进行基础研究以确定完整材料的性能，然后研究其基于有意解聚的可回收性和长期水解降解性。据推测，对结合了共价键、超分子主客体相互作用、滑环拓扑和polyHIPE形态的网络进行系统研究将增强对成分-结构-拓扑-形态-性质关系的基本理解，并产生先进的材料具有超高的吸水动力学和容量，同时表现出动态、响应性的物理化学和机械行为，适合广泛的应用。重要的是，将开发利用天然原料和内置解聚和拆卸路线制造此类材料的技术，以提高可持续性和可回收性。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势进行评估，被认为值得支持以及更广泛的影响审查标准。

项目成果

期刊论文数量（12）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Metal-free polypeptide redox flow batteries

无金属多肽氧化还原液流电池

DOI：
10.1039/d2ma00498d
发表时间：
2022
期刊：
Materials Advances
影响因子：
5
作者：
Liang, Zhiming;Nguyen, Tan P.;Attanayake, N. Harsha;Easley, Alexandra D.;Lutkenhaus, Jodie L.;Wooley, Karen L.;Odom, Susan A.
通讯作者：
Odom, Susan A.

In Situ Production of Ag/Polymer Asymmetric Nanoparticles via a Powerful Light-Driven Technique

DOI：
10.1021/jacs.9b10205
发表时间：
2019-12-18
期刊：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
影响因子：
15
作者：
Li, Richen;Wang, Hai;Wooley, Karen L.
通讯作者：
Wooley, Karen L.

Degradable sugar-based magnetic hybrid nanoparticles for recovery of crude oil from aqueous environments

DOI：
10.1039/d0py00029a
发表时间：
2020-08-14
期刊：
POLYMER CHEMISTRY
影响因子：
4.6
作者：
Dong, Mei;Song, Yue;Wooley, Karen L.
通讯作者：
Wooley, Karen L.

Design of nanoconstructs that exhibit enhanced hemostatic efficiency and bioabsorbability

DOI：
10.1039/d2nr02043b
发表时间：
2022-07-22
期刊：
NANOSCALE
影响因子：
6.7
作者：
Eissa, Rana A.;Saafan, Hesham A.;Wooley, Karen L.
通讯作者：
Wooley, Karen L.

Topological Design of Highly Anisotropic Aligned Hole Transporting Molecular Bottlebrushes for Solution-Processed OLEDs

用于溶液加工 OLED 的高度各向异性对齐空穴传输分子瓶刷的拓扑设计

DOI：
10.1021/jacs.2c00420
发表时间：
2022
期刊：
Journal of the American Chemical Society
影响因子：
15
作者：
Kang, Nari;Cho, Sangho;Leonhardt, Eric E.;Liu, Chun;Verkhoturov, Stanislav V.;Woodward, William Henry;Eller, Michael J.;Yuan, Tianyu;Fitzgibbons, Thomas C.;Borguet, Yannick P.
通讯作者：
Borguet, Yannick P.