Polyimide-Silica Hybrid Membranes

作者：vjohn在nsf18日期：7/21/98 9：00 AM优先级：正常至：Adthoma主题：9811146三月摘要-摘要建议书编号：9811146提案类型：调查员发起的首席调查员：伊娃·马兰德隶属关系：弗吉尼亚理工学院这笔赠款是通过界面的分离和纯化计划子要素授予的，化学和运输系统司的运输和分离计划。首席研究员是弗吉尼亚理工学院和州立大学的伊娃·马兰德博士。该项目涉及开发可用作气体分离膜的聚合物-陶瓷复合材料。加入陶瓷组分的目的是提高聚合物的自由体积，其中陶瓷组分充当被迫延伸的聚合物链的支架。陶瓷颗粒共价连接到聚合物上，并通过溶胶-凝胶反应生成。聚合物-陶瓷膜在分离技术方面具有巨大的潜力。陶瓷部件可以带来结构和运输方面的改进。这项工作的结果对各种气体分离应用具有一定的指导意义。

Author: vjohn at nsf18 Date: 7/21/98 9:00 AM Priority: Normal TO: adthomas Subject: 9811146 Marand abstract ------------------------------- Message Contents ------------------------------- Abstract Proposal No: 9811146 Proposal Type: Investigator Initiated Principal Investigator: Eva Marand Affiliation: Virginia Polytechnic Institute This grant is awarded through the Separations and Purification Program sub-element of the Interfacial, Transport and Separations Program of the Chemical and Transport Systems Division. The principal investigator is Dr. Eva Marand at Virginia Polytechnic Institute and State University. The project involves the development of polymer-ceramic composites that have applications as membranes for gas separations. The objective of incorporating the ceramic component is to enhance the free volume of the polymer where the ceramic component acts as a scaffold for the polymer chains which are forced to extend. The ceramic particles are covalently linked to the polymer and are generated through sol-gel reactions. Polymer-Ceramic membranes have a tremendous potential in separations technologies. The ceramic component can impart both structural and transport improvements. The results of this work has implications in a variety of gas separation applications.