Industry-University Cooperative Program: Characterization and Application of Penetrant-Induced Conditioning of Glassy Polymers

产学合作项目：玻璃态聚合物渗透剂诱导调理的表征及应用

• 批准号: 8516148
• 负责人: William Koros
• 金额: $ 10.05万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-03-15 至 1989-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8516148&HistoricalAwards=false
• 关键词: Industry; University; Cooperative; Program; Characterization

Fundamental thermodynamic properties such as gas solubility are measured at pressures up to 1000 psia for both components in several gas/polymer binary mixtures. The systems to be studied are either important in engineering applications or have been chosen for their specific physical properties to determine the effects of size and polarity on polymer-penetrant interactions. Typical systems may include carbon dioxide, methane, ethane, nitrogen, polycarbonate, polysulfone, and silicone rubber. Direct determination of both gas uptake and volume dilation of a penetrant-laden polymer sample are performed using equipment previouly developed. The equipment allows actual measurement of changes in film sample dimensions in all three coordinate directions as a function of gas pressure. A video-assisted micrometry system is used to measure the changes in the film thickness, while a precision cathetometer system provides the measurements of the length and width dimensional changes.

基本的热力学性质，如气体溶解度， 两种组分在几种压力下的测量值均高达1000 psia 气体/聚合物二元混合物。 要研究的系统是 在工程应用中很重要，或者因为其 特定的物理性质，以确定尺寸和 聚合物-渗透剂相互作用的极性。 典型的系统可以 包括二氧化碳、甲烷、乙烷、氮气、聚碳酸酯 聚砜和硅橡胶。 直接测定两种气体 负载有助溶剂的聚合物样品的吸收和体积膨胀 使用以前开发的设备进行。 该设备允许 所有三种薄膜样品尺寸变化的实际测量 坐标方向作为气体压力的函数。 电视辅助 测微系统用于测量膜厚度的变化， 而精确的经纬度计系统提供了 长度和宽度尺寸变化。