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.

研究摘要：这是一项工程研究设备赠款。 NSF提供了从环境到150oC的操作的凝胶渗透色谱法（GPC）。 该仪器能够测量在室温下（例如聚乙烯和聚丙烯）在室温下不溶的重要晶体聚合物的分子量分布。 它提供了目前可用于表征聚合物分子量的最有效手段。 该工具应在该部门正在进行的几个项目中使用，其中包括一种针对超临界溶剂中晶体聚合物分馏的一种。 创新：通过高温GPC分析超临界溶剂中晶体聚合物的分馏，代表了一个新颖的概念。 提案中概述了需要使用GPC的其他分析任务也代表了新的研究。 实际意义：需要使用该仪器的研究的实际意义包括设计更有效的晶体聚合物分级过程，具有新物理性能的聚合物混合物的开发和研究以及评估新的煤炭液化过程。 更具体地说，所述类型的聚合物分馏可能适用于高压聚乙烯过程和同骨聚丙烯的纯化。 此外，超临界溶液的降水可能会产生新颖和有用的聚合物形态。 高温GPC对于在大多数研究中产生的产品进行分析是必需的。 建议：建议1987财年奖励$ 35,445，SUNY-BUFFALO提供$ 19,085的匹配资金。