Engineering Research Equipment Grant: High Temperature Gel Permeation Chromatograph

工程研究设备资助：高温凝胶渗透色谱仪

• 批准号: 8704664
• 负责人: Paul Ehrlich
• 金额: $ 3.54万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1988-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8704664&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Temperature

Research Summary: This is an Engineering Research Equipment Grant. A gel permeation chromatograph (gpc) capable of operation from ambient to 150oC is provided by NSF. This instrument is capable of measuring the molecular weight distribution of important crystalline polymers that are insoluble at room temperature, such as polyethylene and polypropylene. It provides the most efficient means that is currently available for characterizing molecular weights of polymers. The instrument is to be used in several projects under way in this department, including one aiming at the fractionation of crystalline polymers in supercritical solvents. Innovation: The fractionation of crystalline polymers in supercritical solvents, to be analyzed by means of the high temperature gpc, represents a novel concept. The other analytical tasks outlined in the proposal that require use of the gpc also represent novel research. Practical Significance: The practical significance of the research which requires use of the instrument includes the design of more efficient fractionation processes for crystalline polymers, the development and study of polymer blends with new physical properties, and the assessment of a new process for coal liquefaction. More specifically, polymer fractionation of the type described might be applicable to high pressure polyethylene processes and the purification of isotactic polypropylene. In addition, novel and useful polymer morphologies might be generated by precipitation from supercritical solution. The high temperature gpc will be necessary for the analysis of the products generated in most of the studies referred to. Recommendation: An award of $35,445 in FY 1987 is recommended, with SUNY-Buffalo providing $19,085 in matching funds.

研究概述：这是一种工程研究设备 格兰特. 一种凝胶渗透色谱仪（GPC）， 从环境温度到150 oC的温度范围由NSF提供。 本仪器是 能够测量以下物质的分子量分布 在室温下不溶的重要结晶聚合物 温度，例如聚乙烯和聚丙烯。 它提供 目前最有效的方法， 表征聚合物的分子量。 仪器 将用于本部门正在进行的几个项目， 包括一种旨在分离结晶聚合物的方法 在超临界溶剂中。 创新：结晶聚合物的分级， 超临界溶剂，以分析的手段，高 温度GPC代表了一个新的概念。 另 建议书中概述的需要使用 GPC也代表新颖的研究。 现实意义： 需要使用仪器的研究包括设计 更有效的分离工艺， 聚合物，开发和研究聚合物共混物与新的 物理性质，并评估了一种新的工艺， 液化 更具体地说，聚合物的聚合物分级分离 所述类型可适用于高压聚乙烯 全同立构聚丙烯的制备方法和纯化。 在 此外，新的和有用的聚合物形态可能是 通过从超临界溶液中沉淀产生。 高 温度GPC将是必要的分析， 在所提到的大多数研究中产生的产品。 建议：建议在1987财政年度赔偿35，445美元， 纽约州立大学布法罗分校提供了19,085美元的配套资金。