MRI Track 1: Acquisition of Differential Scanning Calorimeter (DSC)

国王学院的Isaac VonRue教授及其同事Julie Belanger、Karen Vavrek、Ronald Supkowski和Trent Snider将获得化学专业研究仪器项目颁发的这一奖项，他们将获得差示扫描量热仪(DSC)。该建议旨在加强所有层面的研究和教育，特别是在以下领域：(A)用于聚合物表征的聚合物科学，以研究热可逆凝胶化作用并测量新聚合物的玻璃化转变温度和熔化温度；(B)用于表征新的脂类和脂质体的生物化学；以及(C)用于催化剂科学的二氧化硅表征，用于研究以化学和物理方式结合在表面上的水分子。DSC仪器允许测量升高样品温度所需的热量的差异，并作为温度的函数作为参考。这项技术提供了各种材料的化学成分的信息。这项技术的基本原理是，当样品经历熔化或冻结等物理变化时，需要比基准更多或更少的热量才能将两者保持在相同的温度。流向样品的热量是更少还是更多取决于过程是释放还是需要热量(分别是放热过程还是吸热过程)。该仪器测量热通量随温度或时间的变化。这些信息可以用来计算过程的热焓。该仪器不仅将用于研究，还将用于本科生的研究、培训和教学。

With this award from the Chemistry Major Research Instrumentation Program, Professor Isaac VonRue from King's College and colleagues Julie Belanger, Karen Vavrek, Ronald Supkowski and Trent Snider will acquire a differential scanning calorimeter (DSC). The proposal is aimed at enhancing research and education at all levels, especially in areas such as (a) polymer science for polymer characterization to investigate thermoreversible gelation and measure glass transition and melting temperatures of new polymers; (b) biochemistry for characterization of new lipids and liposomes; and (c) silica characterization for catalyst science to study water molecules that are chemically and physically attached to the surface.The DSC instrument allows the measurement of the difference in the amount of heat required to increase the temperature of a sample and reference as a function of temperature. This technique provides information on the chemical composition of various materials. The basic principle for this technique is that when a sample undergoes a physical transformation such as melting or freezing more or less heat will need to flow to it than the reference to maintain both at the same temperature. Whether less or more heat must flow to the sample depends on whether the process releases or needs heat (exothermic or endothermic processes, respectively). The instrument measures the heat flux versus temperature or versus time. This information can be used to calculate enthalpies of the processes. The instrumentation will be used not only in research but also in research training and teaching of undergraduate students.