Polymer-Ceramic Pervaporation Membranes for Organic-Organic Liquid Separation (TSE99-D)

用于有机-有机液体分离的聚合物陶瓷渗透汽化膜 (TSE99-D)

• 批准号: 9985532
• 负责人: Yoram Cohen
• 金额: $ 10.33万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2003-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9985532&HistoricalAwards=false
• 关键词: Polymer; Ceramic; Pervaporation; Membranes; Organic

ABSTRACTCTS-9985532Y. Cohen, University of California, Los Angeles There is a growing need in chemical manufacturing and pollution prevention for new processes capable of selectively separating and concentrating target species from organic liquid mixtures to increase product purity and for in-process recycling. In recent years, membrane systems have been touted as an efficient means to achieve difficult liquid-phase separations, especially from dilute solutions, at a reduced energy consumption level relative to conventional technologies (e. g., distillation, extraction). Despite the attractiveness of membrane technology, selective membrane technology, selective membranes for organic-organic liquid separations with adequate structural integrity and longevity are lacking. In order to meet the above challenge, the proposed project will focus on the development and demonstration of novel class of robust hybrid polymer, ceramic (PolyCer) membranes for organic-organic separations. The proposed PolyCer membranes will be fabricated by a surface-graft polymerization process resulting in a molecular layer of polymer chains which are terminally and covalently anchored to the pore surface of the porous ceramic support. Given the covalent anchoring of the active polymer chains, the PolyCer membrane will retain its structural integrity and performance even when the polymer phase is exposed to organics that are good solvents for the polymer. Through the selection of the polymer most appropriate for the desired separation task, the polymer surface layer can be synthesized to impact specific separation properties to the membrane. It is expected that this project will lead to the demonstration of a new technology for the tailor design of a new class of selective and robust ceramic-supported polymer membranes. The new approach will allow the rapid deployment of task-specific membranes for in-processes separation for recovery and recycle a selective replacement of energy intensive separation processes (e.g., distillation) in a variety of industrial applications.Mary,

摘要-9985532 Y。科恩，加州大学，洛杉矶在化学制造和污染预防方面，对能够从有机液体混合物中选择性地分离和浓缩目标物质以提高产品纯度和过程中再循环的新工艺的需求日益增长。 近年来，膜系统已被吹捧为实现困难的液相分离的有效手段，特别是从稀溶液中分离，相对于传统技术（例如，例如，在一个实施例中，蒸馏、萃取）。 尽管膜技术、选择性膜技术具有吸引力，但缺乏具有足够的结构完整性和寿命的用于有机-有机液体分离的选择性膜。 为了应对上述挑战，拟议项目将专注于开发和展示新型耐用的杂化聚合物陶瓷（PolyCer）膜，用于有机-有机分离。 所提出的PolyCer膜将通过表面接枝聚合工艺制造，从而产生聚合物链的分子层，所述聚合物链的分子层在末端共价锚定到多孔陶瓷载体的孔表面。 鉴于活性聚合物链的共价锚定，即使聚合物相暴露于聚合物的良好溶剂有机物，PolyCer膜也将保持其结构完整性和性能。 通过选择最适合于所需分离任务的聚合物，可以合成聚合物表面层以影响膜的特定分离性能。 预计该项目将导致一种新技术的示范，用于定制设计一类新的选择性和鲁棒性陶瓷支撑聚合物膜。 新方法将允许快速部署用于过程中分离的任务特定的膜，以用于回收和再循环，选择性地替代能量密集型分离过程（例如，蒸馏）在各种工业应用中。玛丽，