Two-way shape-memory polymer design based on periodic dynamic crosslinks inducing supramolecular nanostructures
基于周期性动态交联诱导超分子纳米结构的双向形状记忆聚合物设计
基本信息
- 批准号:2342272
- 负责人:
- 金额:$ 45万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2024
- 资助国家:美国
- 起止时间:2024-01-01 至 2026-12-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
PART 1: NON-TECHNICAL SUMMARY Shape memory polymers (SMPs) have many potential applications, including aerospace, biomedical, soft robotics, and others. Current limitations of SMPs including low energy density, which means the material cannot be subjected to a large load. Furthermore, they do not have high robustness and have poor reversibility. The PI's work addresses limitations of SMPs through a new mechanism of strain-induced long-range ordered nanostructures formed from supramolecular assembly. The PI and her group will advance the state of knowledge in materials chemistry and polymer science through understanding novel materials design and structure-property relationships specific to two-way SMP (2WSMP) design. By integrating synthesis, processing, and advanced characterization, they will aim to enable a new generation of 2WSMPs with unprecedented energy densities synthesized from low-cost and scalable commercial starting chemicals. Compared to current widely used liquid-crystal elastomer shape-actuation materials, these 2WSMPs would actuate under much larger loads at a much lower material cost. This should allow more widespread testing and adoption, and help advance research on soft actuators. The collection of curated, high-quality experimental datasets produced from this project can potentially be used to benchmark theory and simulation models. With the potential applications and visual effects of 2WSMP behaviors, this work also offers appealing opportunities for recruiting and training students as next-generation workforce and research leaders. PART 2: TECHNICAL SUMMARY Polymer networks formed through dynamic noncovalent or covalent bonds exhibit a range of interesting and tunable mechanical properties (e.g., tough, elastic, self-healable, stimuli-responsive, and reconfigurable). In nature, hierarchically ordered structures are formed through weak but cooperative interactions to perform precise functions. This work will investigate a new molecular design concept of high energy-density shape memory polymers through strain-induced large range order of supramolecular nanostructure formation. The hypothesis is that the ability to form strain-induced supramolecular structures in periodic dynamic polymers (PDPs) may stabilize polymer chain alignment under large strains through non-covalent and covalent crosslinks and as a result crystallite alignment in the prepared two-way shape memory polymers (2WSMPs). The planned work will focus on addressing fundamental questions related to molecular design, polymer thin film and fiber morphology control and crystalline domain orientation, and ultimately their impact on the new designs of SMP behaviors. This study will lead to high energy density 2WSMPs synthesized from low cost and scalable reagents. The resulting 2WSMPs are aimed to have high stroke, actuation under large loads, and minimal cycling hysteresis..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:非技术摘要形状记忆聚合物 (SMP) 具有许多潜在应用,包括航空航天、生物医学、软机器人等。目前形状记忆聚合物的局限性包括能量密度低,这意味着材料无法承受大负载。此外,它们不具有高鲁棒性并且可逆性差。 PI 的工作通过超分子组装形成的应变诱导长程有序纳米结构的新机制解决了 SMP 的局限性。 PI 和她的团队将通过了解新型材料设计和双向 SMP (2WSMP) 设计特有的结构-性能关系,推进材料化学和聚合物科学的知识水平。通过整合合成、加工和先进表征,他们的目标是使新一代 2WSMP 具有前所未有的能量密度,由低成本和可扩展的商业起始化学品合成。与目前广泛使用的液晶弹性体形状驱动材料相比,这些 2WSMP 可以在更大的负载下以更低的材料成本进行驱动。这应该允许更广泛的测试和采用,并有助于推进软执行器的研究。 该项目生成的精选的高质量实验数据集可用于对理论和模拟模型进行基准测试。凭借 2WSMP 行为的潜在应用和视觉效果,这项工作还为招募和培训学生作为下一代劳动力和研究领导者提供了诱人的机会。 第 2 部分:技术摘要 通过动态非共价键或共价键形成的聚合物网络表现出一系列有趣且可调节的机械性能(例如坚韧、弹性、自修复、刺激响应和可重构)。在自然界中,层次有序的结构是通过弱但协作的相互作用形成的,以执行精确的功能。这项工作将通过应变诱导大范围有序的超分子纳米结构形成来研究高能量密度形状记忆聚合物的新分子设计概念。假设在周期性动态聚合物(PDP)中形成应变诱导的超分子结构的能力可以通过非共价和共价交联在大应变下稳定聚合物链排列,从而在制备的双向形状记忆聚合物中实现微晶排列(2WSMP)。 计划的工作将重点解决与分子设计、聚合物薄膜和纤维形态控制以及晶域取向相关的基本问题,以及最终它们对SMP行为新设计的影响。这项研究将导致由低成本且可扩展的试剂合成高能量密度的 2WSMP。由此产生的 2WSMP 旨在具有高冲程、大负载下驱动和最小循环滞后。该奖项反映了 NSF 的法定使命,并通过使用基金会的智力优点和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
专利数量(0)
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Zhenan Bao其他文献
Isotropic transport in an oligothiophene derivative for single-crystal field-effect transistor applications
用于单晶场效应晶体管应用的低聚噻吩衍生物中的各向同性传输
- DOI:
10.1063/1.3129162 - 发表时间:
2009 - 期刊:
- 影响因子:4
- 作者:
C. Reese;M. Roberts;S. Parkin;Zhenan Bao - 通讯作者:
Zhenan Bao
Etanercept/tocilizumab
依那西普/托珠单抗
- DOI:
10.1007/s40278-020-84576-5 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
J. Wilcox;Zhenan Bao;Jiajun He - 通讯作者:
Jiajun He
Fine printing
- DOI:
10.1038/nmat1079 - 发表时间:
2004-03 - 期刊:
- 影响因子:41.2
- 作者:
Zhenan Bao - 通讯作者:
Zhenan Bao
Process design kit for flexible hybrid electronics
适用于柔性混合电子产品的工艺设计套件
- DOI:
- 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
Leilai Shao;Tsung;Ting Lei;Zhenan Bao;R. Beausoleil;K. Cheng - 通讯作者:
K. Cheng
Micrometer-sized DNA-single-fluorophore-DNA supramolecule: synthesis and single-molecule characterization.
微米级 DNA-单荧光团-DNA 超分子:合成和单分子表征。
- DOI:
- 发表时间:
2009 - 期刊:
- 影响因子:13.3
- 作者:
Jungkyu K. Lee;F. Jäckel;W. Moerner;Zhenan Bao - 通讯作者:
Zhenan Bao
Zhenan Bao的其他文献
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{{ truncateString('Zhenan Bao', 18)}}的其他基金
EAGER: Superlattice-induced polycrystalline and single-crystalline structures in conjugated polymers
EAGER:共轭聚合物中超晶格诱导的多晶和单晶结构
- 批准号:
2203318 - 财政年份:2022
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
FMRG: Genetically-targeted chemical assembly (GTCA) of functional structures in living cells, tissues, and animals
FMRG:活细胞、组织和动物功能结构的基因靶向化学组装 (GTCA)
- 批准号:
2037164 - 财政年份:2020
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
SenSE: Artificial Intelligence-enabled Multimodal Stress Sensing for Precision Health
SenSE:人工智能支持的多模态压力传感,实现精准健康
- 批准号:
2037304 - 财政年份:2020
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
DMREF: High-Throughput Morphology Prediction for Organic Solar Cells
DMREF:有机太阳能电池的高通量形态预测
- 批准号:
1434799 - 财政年份:2014
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
Patterning of Large Array Organic Semiconductor Single Crystals
大阵列有机半导体单晶的图案化
- 批准号:
1303178 - 财政年份:2013
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
Liquid phase organic transistor sensor platform based on surface sorted semiconducting carbon nanotubes for small molecules and biological targets
基于表面排序半导体碳纳米管的用于小分子和生物目标的液相有机晶体管传感器平台
- 批准号:
1101901 - 财政年份:2012
- 资助金额:
$ 45万 - 项目类别:
Continuing Grant
Materials World Network: Understanding the Design and Characterization of Air-Stable N-Type Charge Transfer Dopants for Organic Electronics
材料世界网络:了解有机电子器件空气稳定 N 型电荷转移掺杂剂的设计和表征
- 批准号:
1209468 - 财政年份:2012
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
2010 Electronic Processes in Organic Materials Gordon Research Conference; Mount Holyoke College; South Hadley, MA; July 25-30, 2010
2010年有机材料电子过程戈登研究会议;
- 批准号:
0968209 - 财政年份:2010
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
Single Molecule Devices with Self-Aligned Contacts
具有自对准接触的单分子器件
- 批准号:
1006989 - 财政年份:2010
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
Mechanistic Studies of Carbon Naotube Sorting on Functional Surfaces
功能表面碳纳米管分选机理研究
- 批准号:
0901414 - 财政年份:2009
- 资助金额:
$ 45万 - 项目类别:
Standard Grant
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