Engineering Research Equipment Grant: Light Scattering Characterization of Polymer Solutions and Dispersions

工程研究设备补助金：聚合物溶液和分散体的光散射表征

• 批准号: 9112622
• 负责人: David Hunkeler
• 金额: $ 6.22万
• 依托单位: Vanderbilt University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9112622&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Light

Light scattering photometry is an absolute characterization method which can be used to investigate the dilute solution behavior of macromolecules and the colloidal properties of suspensions, emulsions and dispersions. A light scattering photometer and laser differential refractometer will be purchased by the School of Engineering at Vanderbilt University. These complementary instruments will both employ Argon Ion lasers (488 nm) with the differential refractometer used to provide optical parameters for the scattering measurements. The light scattering photometer will operate over a broad angular and temperature range and function in both the static and dynamic modes. Both pieces of equipment will be computer interfaced. They are intended for an interdisciplinary polymer program which includes projects involving several academic departments. They will be principally dedicated to research in Chemical Engineering including the molecular measurement of water soluble polymers, kinetic and latex characterization of heterophase polymerizations, and in analyses aimed at improving the precision of light scattering. The photometer will also be used for engineering education in the laboratory component of a graduate polymer course. Additionally, it will be applied to the investigation of research areas in polymer science and engineering including the conformation of polymer chains prior to degradation, the mechanism of polymer separation inside a sorbent pore of a Gel Permeation Chromatograph, and determination of structure-property indices to improve the quality of biomaterials such as those used in artificial organs.

光散射光度法是一种绝对表征 可用于研究稀溶液的方法 大分子的行为和胶体性质 悬浮液、乳液和分散体。 光散射光度计和激光微分 折射计将由工程学院购买 在范德比尔特大学。 这些补充文书 都将采用氩离子激光器（488 nm）， 用于提供光学参数的差示折射计 用于散射测量。 光散射 光度计将在广泛的角度和温度下工作 静态和动态模式下的范围和功能。 两 这些设备将与计算机连接。 他们是 用于跨学科聚合物计划， 包括涉及多个学术部门的项目。 他们将主要致力于化学研究 包括水的分子测量在内的工程学 可溶性聚合物，动力学和胶乳表征 多相聚合，并在分析，旨在 提高光散射的精度。 光度计 也将用于实验室的工程教育 一个研究生聚合物课程的组成部分。 此外，它将 应用于聚合物研究领域的调查 科学与工程，包括聚合物的构象 链降解前，聚合物的机理 凝胶渗透的吸附剂孔内的分离 色谱分析和结构-性能指标测定 为了提高生物材料的质量， 人造器官