Arylation of Diorganochalcogen Compounds with Diaryliodonium Triflates: Metal Catalysts Are Unnecessary
摘要:
Diaryliodonium triflates transfer an aryl group to the chalcogen atom of organic sulfides, selenides, and tellurides (but not ethers), in the absence of transition-metal catalyst, simply upon heating in chloroform or dichloroethane solution.
Compositions and Methods Incorporating Photocatalysts
申请人:Baker Ellen Schmidt
公开号:US20090285768A1
公开(公告)日:2009-11-19
The various embodiments provide a composition including an active material having functional groups capable of covalent attachment to a substrate in the presence of an acid or a base, a photocatalyst capable of generating an acid or a base upon exposure to light, and a vehicle. The compositions may also include surfactants, emulsifiers, oxidants, and other components. A method for treating a substrate is also disclosed. The method includes the steps of applying at least one active material having functional groups to the substrate, applying a photocatalyst to the substrate, and exposing the photocatalyst and the at least one active material to light for forming covalent attachments between the functional groups and constituent groups on the substrate. The compositions and methods described herein are useful in personal care product and consumer care product applications, for example.
[EN] CYCLOPROPENIUM POLYMERS AND METHODS FOR MAKING THE SAME<br/>[FR] POLYMÈRES DE CYCLOPROPÉNIUM ET LEURS PROCÉDÉS DE FABRICATION
申请人:UNIV COLUMBIA
公开号:WO2014022365A1
公开(公告)日:2014-02-06
The present invention provides, inter alia, a process for incorporating a cyclopropenium ion into a polymeric system. Processes for making cross-linked polymers, linear polymers, and dendritic polymers, as well as for incorporating a cyclopropenium ion onto a preformed polymer are also provided. Further provided are stable, polycationic compounds, various polymers that contain stable cyclopropenium cations, and substrates containing such polymers. The use of these polymers in water purification systems, antimicrobial coatings, ion-transport membranes, cell supports, drug delivery vehicles, and gene therapeutic vectors are also provided.
CROSSLINKABLE SILOXANES BY ACID-CATALYZED POLYMERIZATION OF OXASILACYCLES
申请人:Wacker Chemie AG
公开号:US20150175749A1
公开(公告)日:2015-06-25
Compounds of the general formula (4) are prepared by polymerization of oxasilacycles in the presence of an acid catalyst.
通式为(4)的化合物是在酸催化剂存在下聚合氧硅杂环化合物制备的。
OLIGOFLUORINATED CROSS-LINKED POLYMERS AND USES THEREOF
申请人:Esfand Roseita
公开号:US20110091508A1
公开(公告)日:2011-04-21
The invention features oligofluorinated cross-linked polymers and their use in the manufacture of articles and coating surfaces.
该发明涉及寡聚氟交联聚合物及其用于制造物品和涂覆表面的用途。
CYCLOPROPENIUM POLYMERS AND METHODS FOR MAKING THE SAME
申请人:THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
公开号:US20150175727A1
公开(公告)日:2015-06-25
The present invention provides, inter alia, a process for incorporating a cyclopropenium ion into a polymeric system. Processes for making cross-linked polymers, linear polymers, and dendritic polymers, as well as for incorporating a cyclopropenium ion onto a preformed polymer are also provided. Further provided are stable, polycationic compounds, various polymers that contain stable cyclopropenium cations, and substrates containing such polymers. The use of these polymers in water purification systems, antimicrobial coatings, ion-transport membranes, cell supports, drug delivery vehicles, and gene therapeutic vectors are also provided.