Acquisition of GPC/Static Light Scattering System for Polymer, Membrane and Colloid Science Research Program

购置 GPC/静态光散射系统用于聚合物、膜和胶体科学研究计划

• 批准号: 9703973
• 负责人: Saad Khan
• 金额: $ 8.5万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9703973&HistoricalAwards=false
• 关键词: Acquisition; GPC; Static; Light; Scattering

9703973 Khan The Chemical Engineering Department at North Carolina State University (NCSU) will purchase a Gel Permeation Chromatography /Static Light Scattering system to obtain critically needed information in polymer, membrane and colIoid science research. The equipment will be used for several funded projects, including (1) The Influence of Chain Configuration and Composition on the Extraordinary Permeation Properties of Substituted Polyacetylene Vapor Separation Membrane Materials; (2) Gas Transport and Barrier Properties of Novel Aromatic Polyamides; (3) Enzymatic modification of water soluble polymers; (4) Composite Polymer Electrolytes Using Fumed Silica; (5) Synthesis Rheology and Microstructure of Polymer Grafted Latex Systems for Water-borne Inks; and (6) Asphaltene and Discotic Mesogen Aggregation in Model Solvent System: Effect of Aggregat on Emulsion Stability. To sustain these strong research program and provide for new and innovative research, a modern gel permeation chromatograph (GPC) / static light scattering system (SLS) is essential. The GPC/SLS system would provide the capability to determine molecular weight, molecular weight distribution and chain configuration of block copolymers substituted polyacetylenes that are being developed as membrane materials, enzymatically modified guar galactomannans for use in food and oil/gas applications, and graft comb polymers that are being synthesized as low water-borne inks. The success and completion of each of these projects hinges on information obtained using the acquired instrumentation. A sensitive GPC/S is required to characterize microstructures resulting from polymer-fumed silica-lithium ion interactions in novel polymer electrolyte materials. This instrument will also have the capability to measure the size, topology, and fractal dimension of asphaltene aggregates. These new capabilities will provide crucial information for the growing interdisciplinary research program in polymer rh eology, membrane, and colloid sciences at NCSU and enable it to remain strong and vital in the years ahead. The acquired equipment would also play a major role in training undergraduates in the newly-created polymer and colloid science track in the BS Chemical Engineering program. ***

9703973可汗北卡罗来纳州立大学化工系将购买凝胶渗透色谱/静态光散射系统，以获得聚合物、膜和胶体科学研究中急需的信息。该设备将用于几个获得资助的项目，包括(1)链结构和组成对取代聚乙炔蒸气分离膜材料非凡渗透性能的影响；(2)新型芳香族聚酰胺的气体传输和阻隔性能；(3)水溶性聚合物的酶改性；(4)使用气相二氧化硅的复合聚合物电解质；(5)水性油墨用聚合物接枝乳液体系的合成流变学和微观结构；以及(6)模型溶剂体系中沥青质和盘状介元聚集：聚集态乳液稳定性的影响。为了维持这些强大的研究计划并提供新的和创新的研究，现代凝胶渗透色谱仪(GPC)/静态光散射系统(SLS)是必不可少的。GPC/SLS系统将能够确定正在开发的作为膜材料的嵌段共聚物取代的聚乙炔、用于食品和石油/天然气应用的酶修饰的瓜尔豆半乳甘露聚糖以及作为低水油墨合成的接枝梳状聚合物的分子量、分子量分布和链结构。每一个项目的成功和完成都取决于使用所获得的仪器所获得的信息。在新型聚合物电解质材料中，需要灵敏的凝胶渗透色谱/S来表征聚合物-气相二氧化硅-锂离子相互作用产生的微结构。该仪器还将具有测量沥青质聚集体的大小、拓扑和分维的能力。这些新能力将为NCSU在聚合物流变学、膜和胶体科学方面不断发展的跨学科研究计划提供关键信息，并使其在未来几年保持强大和至关重要。收购的设备还将在BS化学工程项目中新创建的聚合物和胶体科学轨道上培训本科生方面发挥重要作用。***