Engineering Research Equipment: Solid-State NMR Spectrometer Upgrade for Polymers

CTS-9411656麻省理工学院P.I: Karen Gleason麻省理工学院化学工程系要求支持购买现成的组件，以升级现有的光谱仪，使其具备执行最先进的核磁共振（NMR）的能力。特别需要支持购买一个动态角度旋转核磁共振探头，一个用于产生形脉冲的脉冲编程器，一个用于建立核磁共振实验和分析多维核磁共振实验的商业软件，一个用于氘光谱的放大器和滤波器以及一个超导磁体。这包括：1)无溶剂处理聚丙烯酸-共丙烯酸薄膜和纤维纺丝制备高性能液晶芳香族聚酯引起的分子组织各向异性的研究。（Prof. Gregory C. Rutledge） 2)颗粒改性尼龙共聚物和共混物的变形和增韧机制的阐明。（Prof. Robert E. Cohen） 3)化学扩增抗蚀剂聚合物基质中光敏盐偏析的定量研究。（Karen K. Gleason教授）此外，该设备将支持我们部门目前正在进行的电子、光学和生物固体的研究。这些组件将赋予自制光谱仪现有射频系统新的先进功能，并增强其用户友好性，以便创建一个多产的多用户仪器，专门用于聚合物材料和其他技术重要固体的工程研究。

ABSTRACT CTS-9411656 MIT P.I.: Karen Gleason The Chemical Engineering Department at MIT requests support to purchase off-the-shelf components to upgrade an existing spectrometer with the capabilities to perform state-of-the-art nuclear magnetic resonance (NMR). In particular, support is requested for the purchase of a dynamic angle spinning NMR probe, a pulse programmer for generating shaped pulses, commercial software for setting-up NMR experiments and analyzing multi-dimensional NMR experiments, an amplifier and filter for deuterium spectroscopy and a superconducting magnet. This including: 1) Study of the anisotropy of molecular organization induced by solventless process- ing of thin films of poly(acrylate-co-acrylic acid)s and by fiber-spinning of high performance liquid crystal aromatic polyesters. (Prof. Gregory C. Rutledge) 2) Elucidation of deformation and toughening mechanisms in particle-modified nylon copolymers and blends. (Prof. Robert E. Cohen) 3) Quantification of photosensitive salt segregation within the polymeric matrices of chemically amplified resists. (Prof. Karen K. Gleason) In addition, this equipment will support research on electronic, optical, and biological solids which is currently active within our department. These components will impart new advanced capabilities to and enhance the user friendliness of the existing radiofrequency system of a homebuilt spectrometer in order to create a productive multi-user instrument dedicated to engineering research on polymeric materials and other technologically significant solids.