Abstract: A turbine engine having a compressor section, a combustor section, a turbine section, and a rotatable drive shaft that couples a portion of the turbine section and a portion of the compressor section. A bypass conduit couples the compressor section to the turbine section while bypassing at least the combustion section. At least one particle separator is located in the turbine engine having a separator inlet that receives a bypass stream, a separator outlet that receives a reduced-particle stream flows, and a particle outlet that receives a concentrated-particle stream comprising separated particles. A conduit, fluidly coupled to the particle outlet, extends through an interior of at least one stationary vane.

Abstract: The present disclosure provides an article including an isoporous membrane disposed on a porous substrate. The iso-porous membrane includes a triblock copolymer or a pentablock copolymer. The isoporous membrane has a thickness and is isoporous throughout its thickness. A method of making an article is also provided, which does not require a solvent exchange process. The method includes depositing a composition on a porous substrate, thereby forming a fdm, and removing at least a portion of the solvent from the film, thereby forming an isoporous membrane having numerous pores. The composition contains a solvent and solids including a triblock copolymer or a pentablock copolymer. The article advantageously can be hydrophilic and provides sharp molecular weight cut-offs and high flux.

Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.

Abstract: Phosphate-containing copolymers, medical compositions containing the phosphate-containing copolymers, and methods of suppressing microbial virulence are provided. By suppressing virulence, administration and/or application of the medical compositions can be used to prevent, mitigate, or treat a microbial infection. The phosphate-containing copolymers are prepared by phosphorylating either a random copolymer or a random copolymeric block that contains monomeric units of propylene oxide and glycidol.

Abstract: Cationic polymers are provided that comprise monomeric units of Formula (V). (V) Each asterisk (*) indicates an attachment position to another monomeric unit; R is hydrogen or methyl; each R2 is each independently an alkyl, aryl, or a combination thereof; L is a linking group comprising an alkylene group; and +R3 is a cationic nitrogen-containing group free of any N—H bonds. Membranes formed from said cationic polymers, devices including such membranes, and methods of making such cationic polymers are also provided.

Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.

Abstract: Cationic polymers are provided that comprise monomeric units of Formula (V). (V) Each asterisk (*) indicates an attachment position to another monomeric unit; R is hydrogen or methyl; each R2 is each independently an alkyl, aryl, or a combination thereof; L is a linking group comprising an alkylene group; and +R3 is a cationic nitrogen-containing group free of any N—H bonds. Membranes formed from said cationic polymers, devices including such membranes, and methods of making such cationic polymers are also provided.

Abstract: Presently described is a monomer having the formula: wherein n ranges from 2 to 8; Y is F or CmF2m+1; a is 0, or averages 1 to 2; m is independently 1, 2, 3, or 4; and X is F or OH. Also described is a method of making such monomer, various compounds prepared during while making the monomer, fluoropolymers comprising polymerized units of such monomer, fuel cell membranes, membrane electrode assemblies, and methods of making fluoropolymers.

Abstract: A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a Tg of ?110° C. C is a rubbery block present in a range from 10 to 70 weight percent, based on the total weight of the copolymer and has a Tg?25° C. A is substantially incompatible with both the B and C blocks and is derived from ring-opening polymerization. B+C is present in a range from 70 to 95 weight percent, based on the total weight of the copolymer.

Abstract: The present disclosure provides a composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing homo-copolymer combined with the core/shell nanoparticle, the stabilizing (co)polymer comprising styrene monomer units and functionalized with phosphine, arsine or stibine groups.

Abstract: A porous membrane, The porous membrane includes a triblock copolymer of the formula ABC, the porous membrane comprising a plurality of pores; wherein the A block has a Tg of 90 degrees Celsius or greater and is present in an amount ranging from 30% to 80% by weight, inclusive, of the total block copolymer; wherein the B block has a Tg of 25 degrees Celsius or less and is present in an amount ranging from 10% to 40% by weight, inclusive, of the total block copolymer and wherein the C block is a water miscible hydrogen-bonding block immiscible with each of the A block and the B block; wherein the porous membrane comprising a first major surface and an opposed second major surface, wherein the first major surface is a nanostructured surface.

Abstract: Described herein are nitrogen-containing multi-block copolymers, as well as methods for making such multi-block copolymers, and articles comprising such multi-block copolymers. The nitrogen-containing multi-block copolymers contains at least one A block comprising polyisoprene; and at least one B block comprising amino-functionalized polybutadiene, the amino-functionalized polybutadiene comprising nitrogen-containing pendant groups.

Abstract: The present disclosure provides a porous membrane made of pentablock copolymer. The porous membrane includes an ABCBA block copolymer and has a number of pores. The A block is immiscible with each of the B block and the C block, the B block has a glass transition temperature (Tg) of 90 degrees Celsius or greater, and the C block has a Tg of 25 degrees Celsius or less. The A block comprises a poly(alkylene oxide), a substituted epoxide, a polylactam, or a substituted carbonate; B block comprises a vinyl aromatic monomer or a polyalkylmethacrylate and C block comprises a polyacrylate, a polysiloxane or a polyisoprene. A method of making a porous membrane is also provided. The method includes forming a film or a hollow fiber from a solution including a solvent and solids containing an ABCBA block copolymer. The method further includes removing at least a portion of the solvent from the film or the hollow fiber and contacting the film or the hollow fiber with a nonsolvent.

Abstract: The present disclosure provides a composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing homo- or copolymer combined with the core/shell nanoparticle, the stabilizing (co)polymer comprising styrene monomer units and functionalized with phosphine, arsine or stibine groups.

Abstract: An isoporous membrane includes a multiblock copolymer film. The multiblock copolymer is crosslinked, and the film has a toughness of at least 50 kJ/m3 as a free-standing film when wet, as measured by integrating the area under a stress-strain curve for the film. Methods of forming isoporous membranes are also included.

Abstract: A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a Tg of ?110° C. C is a rubbery block present in a range from 10 to 70 weight percent, based on the total weight of the copolymer and has a Tg?25° C. A is substantially incompatible with both the B and C blocks and is derived from ring-opening polymerization. B+C is present in a range from 70 to 95 weight percent, based on the total weight of the copolymer.

Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.

Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.

Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.

Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.