Ionic and Molecular Materials of High Thermal Stability: Design, Structure, and Function

高热稳定性离子和分子材料：设计、结构和功能

• 批准号: 1800122
• 负责人: James Davis
• 金额: $ 33万
• 依托单位: University of South Alabama
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-06-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1800122&HistoricalAwards=false
• 关键词: Ionic; Molecular; Materials; Thermal; Stability

In this project, funded by the Chemical Structure, Dynamics and Mechanism B Program of the Chemistry Division, Professor James Davis and his students of the Department of Chemistry at the University of South Alabama are exploring the synthesis, characterization, and properties of a new type of ionic liquid salts. The salts being investigated are expected are highly resistant to heat and retain their liquid character, without evaporation, decomposition, or flammability, for long periods of time. Salts of this type can be used as substitutes for more traditional liquids in applications ranging from heat transfer fluids and high-performance lubricants to biomass processing and the synthesis of important electronic materials such as semiconductors. The project brings together elements of chemical synthesis as well as material science and engineering, and offers engaged students a broad opportunity for gaining experience from a spectrum of activities. Since the institution at which the research is taking place serves a high proportion of individuals from groups underrepresented in the sciences and engineering, the project provides important opportunities to engage in the professional training of individuals from these communities. Ionic liquid salts are materials of considerable fundamental interest and growing practical utility. Because of their non-volatility, ionic liquids can be used in applications requiring high temperatures, such as in heat transfer, lubrication, or high-temperature materials synthesis. Although typical ionic liquid salts have relatively high degrees of thermal stability, many of them are still incapable of being used for long durations at temperatures above 200 degrees Celsius. By exploiting tetraarylphosphonium and triarylsulfonium salts, ionic liquid salts capable of remaining stable at temperatures of 300 degrees Celsius for periods over three months have been achieved by Professor Davis' group. New strategies are being pursued to improve their thermal stability profile. These strategies include the use of thermally stable anions, cross-linking of the molecules, the incorporation of graphene, and blending with oligophenylene ethers.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.

在这个项目中，由化学结构，动力学和机制B计划资助，詹姆斯·戴维斯教授及其南阿拉巴马大学化学系的学生正在探索一种新型的综合，表征和财产离子液体盐。预计所研究的盐具有很大的耐热和保持液体特性的高度耐药性，而没有蒸发，分解或易燃性长时间。这种类型的盐可以用作更传统液体的替代品，从传热液和高性能润滑剂到生物质加工以及重要的电子材料（例如半导体）的替代品。该项目汇集了化学合成的元素以及材料科学和工程，并为敬业的学生提供了从各种活动中获得经验的广泛机会。由于研究的机构为科学和工程中人数不足的团体提供了很大比例的个人，因此该项目为从事这些社区的个人的专业培训提供了重要的机会。离子液体盐是具有基本兴趣和实用实用性不断增长的材料。由于其不挥发性，离子液体可用于需要高温（例如在传热，润滑或高温材料合成）的应用中。尽管典型的离子液体盐具有相对较高的热稳定性，但其中许多仍然无法在200摄氏度以上的温度下长时间使用。 通过利用四边菌和三硫硫硫磺化盐，戴维斯教授组达到了三个月的时间，能够在300摄氏度的温度下保持300摄氏度的温度稳定。 正在采取新的策略来改善其热稳定性概况。 这些策略包括使用热稳定的阴离子，分子的交联，石墨烯的掺入以及与寡苯基醚的融合。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛的评估来支持的。影响审查标准。

项目成果

Ionic Liquids with Benzenesulfonate Anions: Nonfluorinated, Thermally Stable Anion Options

具有苯磺酸根阴离子的离子液体：非氟化、热稳定阴离子选项

• DOI: 10.1021/acsaenm.2c00229
• 发表时间: 2023
• 期刊: ACS Applied Engineering Materials
• 作者: Soltani, Mohammad;Siu, Benjamin;Vo, Matthew;West, Kevin N.;Adu, Clinton;Mirjafari, Arsalan;Davis, James H.
• 通讯作者: Davis, James H.

Cyclopropane as an Unsaturation “Effect Isostere”: Lowering the Melting Points in Lipid-like Ionic Liquids

环丙烷作为不饱和度“等排效应”：降低类脂离子液体的熔点

• DOI: 10.1021/acs.jpcb.2c07872
• 发表时间: 2023
• 期刊: The Journal of Physical Chemistry B
• 作者: O’Brien, Richard A.;Hillesheim, Patrick C.;Soltani, Mohammad;Badilla-Nunez, Kelly J.;Siu, Ben;Musozoda, Muhammadiqboli;West, Kevin N.;Davis, James H.;Mirjafari, Arsalan
• 通讯作者: Mirjafari, Arsalan

Making good on a promise: ionic liquids with genuinely high degrees of thermal stability

• DOI: 10.1039/c8cc01716f
• 发表时间: 2018-05-18
• 期刊: CHEMICAL COMMUNICATIONS
• 影响因子: 4.9
• 作者: Rabideau, Brooks D.;West, Kevin N.;Davis, James H., Jr.
• 通讯作者: Davis, James H., Jr.

Unorthodox crystalline drug salts via the reaction of amine-containing drugs with CO 2

通过含胺药物与 CO 2 反应生成非正统结晶药物盐

• DOI: 10.1039/c9cc06429j
• 发表时间: 2019
• 期刊: Chemical Communications
• 影响因子: 4.9
• 作者: Soltani, Mohammad;Mash, Brandon L.;Henseler, Julian;Badri, Sharhzad;Zeller, Matthias;Salter, E. Alan;Wierzbicki, Andrzej;Stenson, Alexandra C.;Davis, James H.
• 通讯作者: Davis, James H.

Tuning the melting point of selected ionic liquids through adjustment of the cation's dipole moment

• DOI: 10.1039/d0cp01214a
• 发表时间: 2020-06-07
• 期刊: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
• 影响因子: 3.3
• 作者: Rabideau, Brooks D.;Soltani, Mohammad;Davis, James H., Jr.
• 通讯作者: Davis, James H., Jr.