Abstract:
The present application provides a composite material that comprises a solid and solid-supported non-polymeric switchable moiety, wherein the switchable moiety comprises a functional group that is switchable between a first form and a second form, said first form being neutral and hydrophobic, and said second form being ionized and hydrophilic. The composite material converts to, or is maintained in, said second form when the switchable moiety is exposed to CO2 at amounts sufficient to maintain the ionized form. The composite material converts to, or is maintained in, said first form when CO2 is removed or reduced to an amount insufficient to maintain the ionized form. CO2 is removed or reduced by exposing the composite material to heat and/or a flushing inert gas such as N2, Ar, or air. Envisioned uses of these composite materials includes removing water from non-aqueous solvents, removing water vapour from gaseous mixtures, and cleaning industrial reaction vessels and/or pipelines.
Abstract:
A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.
Abstract:
The present application provides precursor compounds useful for deposition of a group 11 metal on a substrate, for example, a microelectronic device substrate, as well as methods of synthesizing such precursor compounds. The precursor compounds provided are mono-metallic compounds comprising a diaminocarbene (DAC) having the general formula: “DAC-M-X”, where the diaminocarbene is an optionally substituted, saturated N-heterocyclic diaminocarbene (sNHC) or an optionally substituted acyclic diaminocarbene, M is a group 11 metal, such as copper, silver or gold; and X is an anionic ligand. Also provided are methods of synthesizing the precursor compounds, metal deposition methods utilizing such precursor compounds, and to composite materials, such as, e.g., microelectronic device structures, and products formed by use of such precursors and deposition methods.
Abstract:
The present application provides salen indium catalysts of the following general structure and the corresponding dimers. The salen indium catalysts are particularly useful in catalyzing ring-opening polymerizations of cyclic ester monomers, such as lactides. Also provided herein are methods of using the salen indium complexes to catalyze polymerization of cyclic ester monomers. Of particular interest is the successful polymerization of lactides using the present salen indium catalysts to produce poly(lactic acid) having high isotacticity.
Abstract:
The present application provides switchable, homogeneous paint composition and methods of painting and/or forming films or coatings using the composition. The composition includes a liquid having an aqueous solution and dissolved acid gas (e.g., carbonated water), and a switchable polymer. The switchable polymer converts from a protonated, water-soluble form in the liquid to a water-insoluble unprotonated form following removal or substantial removal of the liquid and acid gas.
Abstract:
A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.
Abstract:
A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.
Abstract:
The present application provides compound of Formula X wherein A is an optionally substituted aliphatic or an optionally substituted aryl, and B is a moiety that stabilizes the partial positive charge at the carbon adjacent the divalent sulfur. The compound of Formula X is useful as a reversible antioxidant in a variety of applications. Also provided are methods of synthesizing the compound of Formula X.