Ionoelastomer heterojunctions at the micro- and nano-scale

微米和纳米尺度的离子弹性体异质结

基本信息

  • 批准号:
    2104892
  • 负责人:
  • 金额:
    $ 46.07万
  • 依托单位:
  • 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 2024-08-31
  • 项目状态:
    已结题

项目摘要

NON-TECHNICAL SUMMARY:Soft polymer networks that can conduct currents through motion of ionic species hold potential for the development of new classes of materials and devices. Recent work has focused on the interface formed when one material bearing fixed positive (and therefore mobile negative) ions is placed in contact with another bearing fixed negative (and mobile positive) ions. Such interfaces act much like the electronic gates found in modern electronic devices, which allow current to pass in one direction, but not the other. However, interfaces based on soft ion-conducting polymers offer other interesting properties, such as the ability to reversibly stick and release with the application of a small voltage, and the ability to generate currents when mechanically deformed. This project seeks to deepen our understanding of this emerging class of materials, and to thereby open the door to new types of devices built from them. To do so, it will develop a library of ion-conducting polymers and characterize how the behavior of the resulting interfaces depends on the polymer characteristics. It will provide insight into the tendency of these oppositely charged polymers to mix, or not mix, and use this knowledge to engineer systems that spontaneously assemble into junctions with improved performance. The project will provide opportunities for training and mentoring of students and researchers from the high school to post-doctoral levels, and will partner with nearby high schools and several organizations at the University of Colorado Boulder to engage, recruit, and retain a diverse group of participants.TECHNICAL SUMMARY:Crosslinked networks of polyelectrolytes with low glass transition temperatures formed from ionic liquid monomers, or ‘ionoelastomers’, have recently emerged as a promising class of soft ion conductors. While recent work has shown that heterojunctions between polyanionic and polycationic materials serve as inherently stretchable ionic diodes, enabling the formation of transistors, low-voltage electroadhesives, and electro-mechanical transducers, much remains to be understood about their operation. This project will establish a library of copolymers with varying content of different ionic charge carriers and different backbone chemistries, and characterize how the behavior of the resulting ionoelastomer heterojunctions depends on these characteristics. It will characterize the tendency of poly(ionic liquid) blends and block copolymers to mix, or undergo micro- or macro-phase separation, as a function of these parameters as well. Finally, it will establish routes based on self-assembly and photochemical patterning of ionic species to yield high surface area nano- and micro-scale heterojunctions, offering potentially dramatic improvements in the performance of the resulting devices. .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.
非技术总结:可以通过离子种类的运动传导电流的软聚合物网络具有开发新类别材料和设备的潜力。最近的工作集中在当一种承载固定的正离子(因此移动的负离子)的材料与另一种承载固定的负离子(和移动的正离子)的材料接触时形成的界面上。这种接口的作用很像现代电子设备中的电子门,允许电流沿一个方向通过,但不允许另一个方向通过。然而,基于软离子导电聚合物的界面提供了其他有趣的特性,例如在施加小电压的情况下可逆地粘附和释放的能力,以及在机械变形时产生电流的能力。该项目旨在加深我们对这类新兴材料的理解,从而为由它们构建的新型设备打开大门。为此,它将开发一个离子导电聚合物库,并表征所得界面的行为如何取决于聚合物特性。它将提供对这些带相反电荷的聚合物混合或不混合的趋势的洞察,并使用这些知识来设计自发组装成具有改进性能的结的系统。该项目将为学生和研究人员提供从高中到博士后水平的培训和指导机会,并将与附近的高中和科罗拉多大学博尔德分校的几个组织合作,吸引、招募和留住不同的参与者。技术概要:由离子液体单体或“离子交换剂”形成的具有低玻璃化转变温度的聚电解质交联网络最近已成为一类有前途的软离子导体。虽然最近的工作已经表明,聚阴离子和聚阳离子材料之间的异质结作为固有的可拉伸离子二极管,使晶体管,低压电粘合剂和机电换能器的形成,许多仍然是了解他们的操作。该项目将建立一个具有不同离子电荷载体和不同骨架化学成分的共聚物库,并表征所得离子弹性体异质结的行为如何取决于这些特性。它将表征聚(离子液体)共混物和嵌段共聚物混合的趋势,或经历微观或宏观相分离,作为这些参数的函数。最后,它将建立基于离子物种的自组装和光化学图案化的路线,以产生高表面积的纳米和微米级异质结,从而可能显著改善所得器件的性能。 该奖项反映了NSF的法定使命,并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,被认为值得支持。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Ionoelastomers at Electrified Interfaces: Differential Electric Double-Layer Capacitances of Cross-Linked Polymeric Ions and Mobile Counterions
  • DOI:
    10.1021/acs.macromol.3c01092
  • 发表时间:
    2023-09
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    Heewoon Shin;Jowon Shin;R. C. Hayward;H. Kim
  • 通讯作者:
    Heewoon Shin;Jowon Shin;R. C. Hayward;H. Kim
Pendent Sulfonylimide Ionic Liquid Monomers and Ionoelastomers via SuFEx Click Chemistry
  • DOI:
    10.1021/acs.chemmater.3c02038
  • 发表时间:
    2023-11
  • 期刊:
  • 影响因子:
    8.6
  • 作者:
    Owen A. Lee;M. K. McBride;Matthew Ticknor;Joshua Sharpes;R. C. Hayward
  • 通讯作者:
    Owen A. Lee;M. K. McBride;Matthew Ticknor;Joshua Sharpes;R. C. Hayward
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Ryan Hayward其他文献

Solving <math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll" class="math"><mn>7</mn><mo>×</mo><mn>7</mn></math> Hex with domination, fill-in, and virtual connections
  • DOI:
    10.1016/j.tcs.2005.09.042
  • 发表时间:
    2005-12-14
  • 期刊:
  • 影响因子:
  • 作者:
    Ryan Hayward;Yngvi Björnsson;Michael Johanson;Morgan Kan;Nathan Po;Jack van Rijswijck
  • 通讯作者:
    Jack van Rijswijck
Federal Reserve Bank of Philadelphia Working Paper No. 03-1 Data Revisions and the Identification of Monetary Policy Shocks Data Revisions and the Identification of Monetary Policy Shocks Data Revisions and the Identification of Monetary Policy Shocks
费城联邦储备银行工作文件第 03-1 号 数据修订和货币政策冲击的识别 数据修订和货币政策冲击的识别 数据修订和货币政策冲击的识别
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
    D. Croushore;Charles L. Evans;Ryan Hayward;James Sherma;Judy Yoo
  • 通讯作者:
    Judy Yoo
Optimizing weakly triangulated graphs
  • DOI:
    10.1007/bf01787477
  • 发表时间:
    1990-03-01
  • 期刊:
  • 影响因子:
    0.600
  • 作者:
    Ryan Hayward;Chính T. Hoàng;Frédéric Maffray
  • 通讯作者:
    Frédéric Maffray
Expected Work Search: Combining Win Rate and Proof Size Estimation
预期工作搜索:结合获胜率和证明大小估计
  • DOI:
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Owen Randall;Martin Müller;T. Wei;Ryan Hayward
  • 通讯作者:
    Ryan Hayward
A note on the circle containment problem

Ryan Hayward的其他文献

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{{ truncateString('Ryan Hayward', 18)}}的其他基金

Collaborative Research: Design and Reconfiguration of Curved Surfaces for Targeted Wave Propagation
合作研究:用于目标波传播的曲面设计和重构
  • 批准号:
    2247094
  • 财政年份:
    2023
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Standard Grant
Shape Morphing Polymer Networks Based on Ion Gels
基于离子凝胶的形状变形聚合物网络
  • 批准号:
    2105825
  • 财政年份:
    2020
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Continuing Grant
Shape Morphing Polymer Networks Based on Ion Gels
基于离子凝胶的形状变形聚合物网络
  • 批准号:
    1609972
  • 财政年份:
    2016
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Continuing Grant
Beyond wrinkles and creases: Generalized and tailored instabilities of polymer films
除了皱纹和折痕:聚合物薄膜的普遍和定制的不稳定性
  • 批准号:
    1309331
  • 财政年份:
    2013
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Standard Grant
Using instabilities of fluid interfaces to assemble amphiphilic block copolymers
利用流体界面的不稳定性来组装两亲性嵌段共聚物
  • 批准号:
    0931616
  • 财政年份:
    2009
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Standard Grant
Travel Support for Young Faculty and Graduate Students to Attend the Symposium on "Active and Responsive Surfaces" at the ACS National Meeting, 3/22-26/09, Salt Lake City, UT
为年轻教师和研究生参加 ACS 全国会议“主动和响应表面”研讨会提供差旅支持,2009 年 3 月 22 日至 26 日,犹他州盐湖城
  • 批准号:
    0838022
  • 财政年份:
    2008
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Standard Grant
CAREER: Creasing of Surface-Attached Polymer Gels
职业:表面附着的聚合物凝胶的折皱
  • 批准号:
    0747756
  • 财政年份:
    2008
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Continuing Grant
Design of nano- and microparticles by controlled micro-scale fluid flows
通过受控微尺度流体流动设计纳米和微米颗粒
  • 批准号:
    0741885
  • 财政年份:
    2007
  • 资助金额:
    $ 46.07万
  • 项目类别:
    Standard Grant

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更新:克服有机体异质结的能量损失
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