Abstract: Embodiments of the present disclosure feature an intrinsically microporous ladder-type Tröger's base polymer including a repeat unit based on a combination of W-shaped CANAL-type and V-shaped Tröger's base building blocks, methods of making the intrinsically microporous ladder-type Tröger's base polymer, and methods of using the intrinsically microporous ladder-type Tröger's base polymer to separate a chemical species from a fluid composition including a mixture of chemical species. Embodiments of the present disclosure further include ladder-type diamine monomers for reacting to form a Tröger's base in situ, and methods of making the ladder-type diamine monomers using catalytic arene-norbornene annulation.

Abstract: Embodiments of the present disclosure provide a carbon molecular sieve membrane (and precursors therefor) including a pyrolysis product of an oxygen-free ladder polymer of intrinsic microporosity. Embodiments of the present disclosure further provide a method of gas separation including contacting a fluid including one or more gas components with a carbon molecular sieve membrane, wherein the carbon molecular sieve membrane includes a pyrolysis product of an oxygen-free ladder polymer of intrinsic microporosity, and separating at least one of said gas components from the fluid. Embodiments of the present disclosure further provide a method of preparing a carbon molecular sieve membrane including heating an oxygen-free ladder polymer of intrinsic microporosity to a pyrolysis temperature in an oxygen-free atmosphere to form, optionally without producing any oxygen-containing gas, a pyrolysis product.

Abstract: Embodiments of the present disclosure generally describe ethano-Tröger's base-amine monomers, ethano-Tröger's base polyimides of intrinsic microporosity, membranes based on ethano-Tröger's base polyimides of intrinsic microporosity, methods of making ethano-Tröger's base-amine monomers, methods of making ethano-Tröger's base polyimides of intrinsic microporosity prepared from ethano-Tröger's base-amine monomers, methods of separating chemical species, and the like.

Abstract: Embodiments include methods of fabricating thin film composite carbon molecular sieve membranes by exposing a polymer layer to a vapor-phase metal-organic precursor under vapor phase infiltration conditions such that the vapor-phase metal- organic precursor diffuses into the polymer layer and reacts with a functional group of the polymer to form an inorganic-organic complex; exposing the polymer layer to a vapor-phase co-reactant under vapor phase infiltration conditions such that the vapor- phase co-reactant diffuses into the polymer layer and oxidizes the organic-inorganic complex to form a metal oxide; and subjecting the polymer layer to inert-atmosphere or vacuum pyrolysis. Embodiments further include thin film composite carbon molecular sieves, and methods of separating one or more chemical species using the carbon molecular sieve membranes.

Abstract: Embodiments of the present disclosure describe polyimide blend compositions, methods of making polyimide blend compositions, methods of using polyimides, membranes including polyimide blends, methods of making membranes including polyimide blends, methods of separating mixtures using the membranes including polyimide blends, and the like.

Abstract: Embodiments of the present disclosure feature an intrinsically microporous ladder-type Tröger's base polymer including a repeat unit based on a combination of W-shaped CANAL-type and V-shaped Tröger's base building blocks, methods of making the intrinsically microporous ladder-type Tröger's base polymer, and methods of using the intrinsically microporous ladder-type Tröger's base polymer to separate a chemical species from a fluid composition including a mixture of chemical species. Embodiments of the present disclosure further include ladder-type diamine monomers for reacting to form a Tröger's base in situ, and methods of making the ladder-type diamine monomers using catalytic arene-norbornene annulation.

Abstract: Aspects of the present disclosure provide for bridgehead-substituted triptycene-based diamines and methods of making bridgehead-substituted triptycene-based diamines.

Abstract: Embodiments of the present disclosure generally describe ethano-Tröger's base-amine monomers, ethano-Tröger's base polyimides of intrinsic microporosity, membranes based on ethano-Tröger's base polyimides of intrinsic microporosity, methods of making ethano-Tröger's base-amine monomers, methods of making ethano-Tröger's base polyimides of intrinsic microporosity prepared from ethano-Tröger's base-amine monomers, methods of separating chemical species, and the like.

Abstract: Embodiments of the present disclosure provide compounds derived by Troger's amine as shown below, microporous structures, membranes, methods of making said compounds, structures, and membranes, methods of use for gas separation, and the like (Formula A1).

Abstract: Embodiments of the present disclosure include, a dianhydride monomer, a polyimide, a method of making a dianhydride, a method of making a polyimide, and the like. Embodiments of the present disclosure can be used in membrane-based gas separation applications.

Abstract: Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.

Abstract: Embodiments of the present disclosure describe pseudo Tröger's base-derived dianhydrides. Embodiments of the present disclosure also describe polyimides based on pseudo Tröger's base-derived dianhydrides, including intrinsically microporous polyimides. Embodiments of the present disclosure further describe a method of separating chemical species in a fluid composition comprising contacting a polymeric membrane with a fluid composition including at least two chemical species, wherein the polymeric membrane includes one or more of an intrinsically microporous polyimide, and capturing at least one of the chemical species from the fluid composition.

Abstract: Embodiments of the present disclosure describe a method of fabricating a thin-film composite membrane comprising immersing a porous support in an aqueous solution containing a diamine; contacting the immersed porous support with an organic solution containing a multifunctional acyl chloride for at least 5 minutes and at a temperature of at least 50° C. to form via interfacial polymerization a polyamide thin film on the porous support; and drying the thin-film composite membrane at about room temperature. Embodiments of the present disclosure further describe a method of separating fluids comprising contacting a defect-free polyamide-thin-film composite membrane with a fluid composition and capturing one or more chemical species from the fluid composition.

Abstract: Embodiments of the present disclosure describe carbocyclic pseudo Tröger's base (CTB) amines. Embodiments of the present disclosure further describe microporous polymers derived from pseudo CTB amines, including, but not limited to, polyimides, CTB ladder polymers, and network porous polymers. Other embodiments describe a method of separating chemical species in a fluid composition comprising contacting a microporous polymer membrane with a fluid composition including at least two chemical species, wherein the microporous polymer membrane includes one or more of a ladder polymer of intrinsic microporosity, a microporous polyimide, and a microporous network polymer; and capturing at least one of the chemical species from the fluid composition.

Abstract: Described herein are ortho-dimethyl-substituted and tetramethyi-substituted triptycene-containing diamine monomers and microporous triptycene-based poiyimides and poiyamides, and methods of making the monomers and polymers.

Abstract: Embodiments of the present disclosure describe polyimide blend compositions, methods of making polyimide blend compositions, methods of using polyimides, membranes including polyimide blends, methods of making membranes including polyimide blends, methods of separating mixtures using the membranes including polyimide blends, and the like.

Abstract: Embodiments of the present disclosure describe, among other things, methods of separating fluids comprising contacting a defect-free polyamide-thin-film composite membrane with a fluid composition and capturing one or more chemical species from the fluid composition.

Abstract: Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.

Abstract: Embodiments of the present disclosure describe a method of fabricating a thin-film composite membrane comprising immersing a porous support in an aqueous solution containing a diamine; contacting the immersed porous support with an organic solution containing a multifunctional acyl chloride for at least 5 minutes and at a temperature of at least 50° C. to form via interfacial polymerization a polyamide thin film on the porous support; and drying the thin-film composite membrane at about room temperature. Embodiments of the present disclosure further describe a method of separating fluids comprising contacting a defect-free polyamide-thin-film composite membrane with a fluid composition and capturing one or more chemical species from the fluid composition.

Abstract: Aspects of the present disclosure provide for bridgehead-substituted triptycene-based diamines and methods of making bridgehead-substituted triptycene-based diamines.