Curable compositions for dynamic epoxy-based thermoset adhesives and/or sealants are provided. Methods of applying the compositions to form strong, low-stress, cured adhesive polymer films are also provided. The cured polymer films use crosslinkers that include disulfide and carbon-nitrogen bonds, wherein the disulfide bonds impart dynamic chemistry to the polymer network structure in order to the achieve adaptable thermoset adhesives and sealants.

The present disclosure relates to synthesis of porous polymer networks and applications of such materials. The present disclosure relates to a method of fabricating of a porous polymer network comprising: (a) providing: (i) a first reactant comprising a plurality of compounds comprising at least one acetyl group, said plurality of compounds comprising at least one compound type, and (ii) a second reactant comprising an alkylsulfonic acid, and (b) creating a solution of said reactants, (c) casting said solution in a form, and (d) treating said solution under such conditions so as to produce a porous polymer network. In one embodiment, the invention relates to a porous polymer network which has a basic structure selected from the group consisting of ##STR00001##

A resin composition includes 100 parts by weight of an unsaturated C═C double bond-containing polyphenylene ether resin; 15 parts by weight to 40 parts by weight of a hydrogenated styrene-butadiene-styrene triblock copolymer; 1 part by weight to 20 parts by weight of a compound of Formula (1); and 0.001 part by weight to 0.5 part by weight of a compound of Formula (2), a compound of Formula (3), a compound of Formula (4) or a combination thereof. Moreover, an article may be made from the resin composition, including a prepreg, a resin film, a laminate or a printed circuit board.

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Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

The present specification relates to a compound including an aromatic ring, a polymer electrolyte membrane including the same, a membrane-electrode assembly including the polymer electrolyte membrane, a fuel cell including the membrane-electrode assembly, and a redox flow battery including the polymer electrolyte membrane.

A polyphenylene ether resin of Formula (1) and a resin composition including the polyphenylene ether resin of Formula (1) are provided. The resin composition is useful for making different articles, including a prepreg, a resin film, a laminate or a printed circuit board, which may achieve excellent multi-layer board thermal resistance and excellent height of impact whitening, in addition to the desirable properties such as fully dissolvable varnish, absence of branch-like pattern or dry board on laminate appearance, high glass transition temperature, low dissipation factor, low Z-axis ratio of thermal expansion and high copper foil peeling strength.

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An electrochemical compressor utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer. The compressor may be part of a refrigeration system that pumps the working fluid in a closed loop through a condenser and an evaporator.

This invention relates to a supported polymer heterostructure and methods of manufacture. The heterostructure is suitable for use in a range of applications which require semiconductor devices, including photovoltaic devices and light-emitting diodes.

The present invention provides an anion exchange resin capable of producing an electrolyte membrane for a fuel cell, a binder for forming an electrode catalyst layer and a battery electrode catalyst layer. The anion exchange resin of the present invention has a hydrophobic unit, a hydrophilic unit and divalent fluorine-containing groups. The hydrophobic unit has divalent hydrophobic groups composed of one aromatic ring or a plurality of aromatic rings that are repeated via carbon-carbon bond. The hydrophilic unit has divalent hydrophilic groups composed of one aromatic ring or a plurality of aromatic rings, at least one of which has an anion exchange group, that are repeated via carbon-carbon bond. The divalent fluorine-containing groups have a specific structure and are bonded via carbon-carbon bond to the hydrophobic unit and/or the hydrophilic unit and/or a moiety other than these units.

Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formulae (I), (II), or (III):

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