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Assessment of the Quartz Crystal Microbalance (QCM) as a Molecular Weight

石英晶体微天平 (QCM) 作为分子量的评估

基本信息

批准号：
1243916
负责人：
Isiah Warner
金额：
$ 28.8万
依托单位：
Louisiana State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-08-15 至 2014-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1243916&HistoricalAwards=false
关键词：
Assessment Quartz Crystal Microbalance QCM

项目摘要

This award by Chemical Measurement and Imaging (CMI) program supports work by Professor Isiah Warner and his collaborators at Louisiana State University & Agricultural and Mechanical College to explore the theoretical foundation of using quartz crystal microbalance (QCM) for both mass and molecular weight determination of volatile organic compounds at the presence of a group of uniform materials based on organic salts (GUMBOS) and cellulose acetate (or other polymers). This research is based upon the researcher's recent discovery that in the presence of aforementioned composite sensing materials, the ratio of two parameters, which are simultaneously acquired during QCM measurements, can provide molecular weight estimates of absorbed molecules. In the proposed studies, the research groups will (1) conduct a detailed examination of sensing composites to achieve a full understanding of their characteristics to provide an appropriate ratio of df to dR; (2) develop computational methods and theoretical models to better understand how these composites function at a fundamental level; and (3) evaluate overall morphology and other properties of composites that contribute to optimal use in QCM measurements and analytical applications. Professor Warner will continue to actively engage undergraduate and graduate students of diverse backgrounds in science, technology, engineering, and mathematics (STEM) education.

化学测量和成像（CMI）计划的这一奖项支持路易斯安那州立大学农业和机械学院的Isiah Warner教授及其合作者的工作&，以探索在存在一组基于有机盐（GUMBOS）和醋酸纤维素的均匀材料的情况下使用石英晶体微天平（QCM）测定挥发性有机化合物的质量和分子量的理论基础。（或其他聚合物）。这项研究是基于研究人员最近的发现，在上述复合传感材料的存在下，在QCM测量过程中同时获得的两个参数的比率，可以提供被吸收分子的分子量估计。在拟议的研究中，研究小组将（1）对传感复合材料进行详细检查，以充分了解其特性，从而提供适当的df与dR比率;（2）开发计算方法和理论模型，以更好地了解这些复合材料在基本水平上的功能;以及（3）评估有助于QCM测量和分析应用中的最佳使用的复合材料的总体形态和其它性质。华纳教授将继续积极参与科学，技术，工程和数学（STEM）教育的不同背景的本科生和研究生。