SGER: Phantom Couplers in 2-D Polymerization

摘要 提案编号： 9727165 提案类型： SGER主要研究者： Josef Michl所属机构： 科罗拉多大学 该补助金通过化学和运输系统司界面，运输和分离计划的分离和纯化计划子要素授予。首席研究员是博尔德市科罗拉多大学的约瑟夫·米歇尔博士。这项研究将测试一个新的概念，在二维交联聚合的分子模块成共价分子网格。这将允许交联是可逆转的，从而允许退火成高度规则的2-D晶体结构，并且是不可逆的，使得网格非常坚固并且可用于应用。这些看似矛盾的要求将通过将通过弱且可逆结合（“幻影”）耦合器的网格的初始可逆组织与通过强且不可逆结合的真实的耦合器的网格的最终固定及时分离来满足。 具有可控开口尺寸和可选择的化学功能化的纳米分子网格的制备将为膜科学开辟新的视野。这种2-D分子筛将能够处理极高的通量，并且孔堵塞也将最小化。成功的研究可能对分离技术产生重大影响。

Abstract Proposal No: 9727165 Proposal Type: SGER Principal Investigator: Josef Michl Affiliation: University of Colorado 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. Josef Michl of the University of Colorado at Boulder. The research will test a new concept in the two-dimensional cross-linking polymerization of molecular modules into covalent molecular grids. This will permit the crosslinking to be both revsersible, thus permitting annealing to highly regular 2-D crystalline structures, and irreversible, making the grids very sturdy and useful for applications. These seemingly contradictory requirements will be met by separating the initial reversible organization of the grid through weakly and reversibly binding ("phantom") couplers in time from the final fixing of the grid through strongly and irreversibly binding real couplers. The preparation of ultrathin molecular grids with controllable opening dimensions and selectable chemical functionalization would open new horizons in membrane science. Such 2-D molecular sieves would be capable of handling extremely high fluxes and pore blockage would also be minimized. Successful research could have a major impact on separations technology.