Thermogravimetric Analysis Instrument

热重分析仪

• 批准号: RTI-2017-00741
• 负责人: Adronov, Alex
• 金额: $ 10.93万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=616757
• 关键词: Thermogravimetric; Analysis; Instrument

This application requests a thermogravimetric analysis (TGA) instrument that is capable of analyzing air sensitive samples, and can perform mass analysis on evolved gases to allow identification of decomposition products. The requested instrument, a TA Instruments Discovery TGA 550 with a benchtop Discovery Quadrupole mass spectrometer, will be used by at least 10 research groups at McMaster university, and is critically needed for the research being carried out. It will be a unique instrument at McMaster with no other instrument being available that can perform this type of analysis. The research that will be supported by this instrument extends across numerous fields, ranging from polymer chemistry to nano-materials, inorganic complexes, energy storage devices, and biomaterials. It will be used by researchers from multiple faculties, including Science and Engineering. In particular, this instrument will be critically important to a number of projects involving carbon nanotube purification, where conjugated polymers are used to selectively isolate semiconducting and metallic structures. This research effort will build on recent advances in the Adronov group, who showed that polymer electronics affects the selectivity toward specific carbon nanotubes in a predictable manner. In this work, determination of the polymer:nanotube weight ratio is a required component of this work, and must be reported in all publications, making this instrument critically important. Similarly, TGA analysis is required to determine water content within fuel cell membranes, which dictates their proton transport capacity. This analysis aids the development of membranes that will result in higher efficiency fuel cells, and will decrease our dependence on fossil fuels. In addition, TGA will be used to determine the composition within polymer-grafted cellulose nanocrystals, as well as the components within hydrogel-based drug delivery agents. Finally, this instrument will be used to analyze decomposition temperatures of organometallic complexes that are air-sensitive, which is extremely difficult without the requested equipment. Currently, no TGA instrument with the capability to measure air-sensitive samples, carry out mass analysis, and handle milligram-scale samples is available at McMaster, making it an absolutely indispensible piece of equipment for multiple research groups.

该应用要求热重分析（TGA）仪器能够分析空气敏感样品，并且能够对释放的气体进行质量分析以允许识别分解产物。所要求的仪器，TA仪器发现TGA 550与台式发现四极杆质谱仪，将使用至少10个研究小组在麦克马斯特大学，是迫切需要的研究正在进行。这将是McMaster的独特仪器，没有其他仪器可以进行这种类型的分析。该仪器将支持的研究跨越许多领域，从聚合物化学到纳米材料，无机复合物，储能设备和生物材料。它将被来自多个学院的研究人员使用，包括科学和工程。特别是，这种仪器将是至关重要的一些项目涉及碳纳米管纯化，共轭聚合物用于选择性地隔离半导体和金属结构。这项研究工作将建立在Adronov小组的最新进展基础上，该小组表明聚合物电子学以可预测的方式影响对特定碳纳米管的选择性。在这项工作中，聚合物：纳米管重量比的测定是这项工作的一个必要组成部分，必须在所有出版物中报告，使该仪器至关重要。类似地，需要TGA分析来确定燃料电池膜内的水含量，这决定了它们的质子传输能力。这种分析有助于开发膜，从而提高燃料电池的效率，并减少我们对化石燃料的依赖。此外，TGA将用于确定聚合物接枝纤维素纳米晶体内的组成，以及基于水凝胶的药物递送剂内的组分。最后，该仪器将用于分析对空气敏感的有机金属络合物的分解温度，如果没有所需的设备，这是非常困难的。目前，McMaster还没有能够测量空气敏感样品、进行质量分析和处理毫克级样品的TGA仪器，这使得它成为多个研究小组绝对不可或缺的设备。