The present disclosure provide a nitrogen-containing compound, which includes a segment I with a formula of

##STR00001##

wherein a represents number of methylene groups, a is a positive integer, Ar.sub.1 is an aryl structural unit, and R.sub.1 and R.sub.2 are each independently selected from H, a hydrocarbyl group, or a substituted hydrocarbyl group, or, R.sub.1 and R.sub.2 are connected and form a poly-membered ring together with a N atom to which they are connected.

An anion exchange branched co-polymer includes poly(aryl) and a branched compound and quinuclininuium side chains. The co-polymer may include xanthene or bibenzofuran. The anion exchange branched co-polymer may be more durable and have less creep and may have a higher ion exchange capacity (IEC) due to the structure and because some of the side chains may have multiple functional sites. The co-polymer may be cross-linked and may also include free radical inhibitors. The co-polymer may be incorporated into a support material and used in an anion exchange membrane or membrane electrode assembly.

An anion exchange branched co-polymer includes poly(aryl) and a branched compound and quinuclininuium side chains. The co-polymer may include xanthene or bibenzofuran. The anion exchange branched co-polymer may be more durable and have less creep and may have a higher ion exchange capacity (IEC) due to the structure and because some of the side chains may have multiple functional sites. The co-polymer may be cross-linked and may also include free radical inhibitors. The co-polymer may be incorporated into a support material and used in an anion exchange membrane or membrane electrode assembly.

An anion exchange membrane is made by mixing 2 trifluoroMethyl Ketone [nominal] (1.12 g, 4.53 mmol), 1 BiPhenyl (0.70 g, 4.53 mmol), methylene chloride (3.0 mL), trifluoromethanesulfonic acid (TFSA) (3.0 mL) to produce a pre-polymer. The pre-polymer is then functionalized to produce an anion exchange polymer. The pre-polymer may be functionalized with trimethylamine in solution with water. The pre-polymer may be imbibed into a porous scaffold material, such as expanded polytetrafluoroethylene to produce a composite anion exchange membrane.

An anion exchange membrane is made by mixing 2 trifluoroMethyl Ketone [nominal] (1.12 g, 4.53 mmol), 1 BiPhenyl (0.70 g, 4.53 mmol), methylene chloride (3.0 mL), trifluoromethanesulfonic acid (TFSA) (3.0 mL) to produce a pre-polymer. The pre-polymer is then functionalized to produce an anion exchange polymer. The pre-polymer may be functionalized with trimethylamine in solution with water. The pre-polymer may be imbibed into a porous scaffold material, such as expanded polytetrafluoroethylene to produce a composite anion exchange membrane.

The present disclosure relates to compositions including a first polymeric structure having a structure of Formula (I), (II), (III), (IV), or (V): ##STR00001##
or a salt thereof, and a second polymeric structure having a structure of Formula (X) or Formula (XI): ##STR00002##
or a salt thereof, in which at least one of these can include an ionizable moiety or an ionic moiety, for use in an electrochemical cell. Materials, devices, and methods using such compositions are also described.

The present disclosure relates to compositions including a first polymeric structure having a structure of Formula (I), (II), (III), (IV), or (V): ##STR00001##
or a salt thereof, and a second polymeric structure having a structure of Formula (X) or Formula (XI): ##STR00002##
or a salt thereof, in which at least one of these can include an ionizable moiety or an ionic moiety, for use in an electrochemical cell. Materials, devices, and methods using such compositions are also described.

A copolymer latex for sealant. The said composition may be used in various applications such as non-pigmented and pigmented sealants for gap filling, waterproofing, in construction and other applications. The copolymer latex composition includes an organic acid fraction, an amide derivative fraction, an acrylic monomer fraction, and a surfactant fraction. The copolymer latex composition may include at least 55% solids of polymerization product of one or more monomers. The said composition is such that the copolymer latex shows properties such as self-thickening ability and good water repellence. The said composition at dry film thickness of about 2 mm provides transparency. In addition, the copolymer latex provides properties like hydrophobicity, tensile strength, elongation efficiency, and low foaming.

A copolymer latex for sealant. The said composition may be used in various applications such as non-pigmented and pigmented sealants for gap filling, waterproofing, in construction and other applications. The copolymer latex composition includes an organic acid fraction, an amide derivative fraction, an acrylic monomer fraction, and a surfactant fraction. The copolymer latex composition may include at least 55% solids of polymerization product of one or more monomers. The said composition is such that the copolymer latex shows properties such as self-thickening ability and good water repellence. The said composition at dry film thickness of about 2 mm provides transparency. In addition, the copolymer latex provides properties like hydrophobicity, tensile strength, elongation efficiency, and low foaming.

The present disclosure relates to a carbazole-based anion exchange material, a preparation method therefor and use thereof, and more particularly, to an anion exchange material used in membranes for water electrolysis, redox flow batteries, fuel cells, carbon dioxide reduction, electrochemical ammonia production and decomposition, electrodialysis (ED), reverse electrodialysis (RED) or capacitive deionization (CDI), a separator comprising the same, a preparation method therefor and use thereof. According to the present disclosure, it is possible to prepare a separation membrane with improved mechanical and chemical stability and durability by remarkably improving the molecular weight together with solubility in solvent by providing the anion exchange material in which all bonds between monomers in the main chain are CC bonds based on the carbazole-based material with high stability.