The present invention relates to hyper-branched compounds, a method of synthesizing the hyper-branched compounds and applications of the hyper-branched compounds. The hyper-branched compounds of the present invention include hyper-branched fluorinated compounds, hyper-branched fluorinated graphene and hyper-branched amine functionalized graphene oxide.

Asymmetric porous films, methods of making, and devices. An asymmetric porous film may have a surface layer, which may be an isoporous surface layer, disposed on a substructure, which may be a graded porous substructure that may have mesopores throughout. An asymmetric porous film may be a hybrid asymmetric porous film comprising one or more precursor(s). An asymmetric porous film may include one or more carbon material(s), one or more metalloid oxide(s), one or more metal(s), one or more metal oxide(s), one or more metal nitride(s), one or more metal oxynitride(s), one or more metal carbide(s), one or more metal carbonitrides, or a combination thereof. A method of making an asymmetric porous film may comprise formation of an asymmetric porous film using CA a mixture comprising a multiblock copolymer that can self-assemble and one or more precursor(s).

A composite that includes graphene and an interfacially-polymerized polyamide, where the composite is in the form of a self-supporting membrane having a graphene side opposite to a polyamide side, or the composite is in the form of a microparticle comprising a graphene core and a polyamide shell, a method of manufacture of the composites by interfacial polymerization and methods of use of the composite are described.

A method of making a hollow fiber carbon molecular sieve is comprised of heating a hollow polymer fiber to a carbonization temperature in an atmosphere that is non-oxidizing to form a hollow fiber carbon molecular sieve, wherein during at least a portion of the heating a tensile force is applied to the hollow polymer fiber. The method may improve the separation of gases similar in size such a propylene from propane.

Composite materials for removing hydrophobic components from a fluid include a porous matrix polymer, carbon nanotubes grafted to surfaces of the porous matrix polymer, and polystyrene chains grafted to the carbon nanotubes. Examples of porous matrix polymer include polyurethanes, polyethylenes, and polypropylenes. Membranes of the composite material may be enclosed within a fluid-permeable pouch to form a fluid treatment apparatus, such that by contacting the apparatus with a fluid mixture containing water and a hydrophobic component, the hydrophobic component absorbs selectively into the membrane. The apparatus may be removed from the fluid mixture and reused after the hydrophobic component is expelled from the membrane. The composite material may be prepared by grafting functionalized carbon nanotubes to a porous matrix polymer to form a polymer-nanotube composite, then polymerizing styrene onto the carbon nanotubes of the polymer-nanotube composite.

A porous graphene film, its manufacturing method and an electronic product are provided. The method of manufacturing the porous graphene film includes: mixing a dispersion liquid of graphene with a dispersion liquid of particles, and performing a film-forming process to form a mixed film of graphene and particles; and removing the particles in the mixed film of graphene and particles to form the porous graphene film. The porous graphene film prepared by the method has a large specific surface area and an excellent electroconductivity.

In view of above problems, an object of the invention is to provide a primary containment vessel venting system having a structure capable of continuously discharging vapor in a primary containment vessel out of the system and continuously reducing pressure of the primary containment vessel without discharging radioactive noble gases to the outside of the containment vessel and without using an enclosing vessel or a power source. In order to achieve the above object, an nuclear power plant of the invention includes a primary containment vessel which includes a reactor pressure vessel, a radioactive substance separation apparatus which is disposed inside the primary containment vessel and through which the radioactive noble gases do not permeate but vapor permeates, a vent pipe which is connected to the radioactive substance separation apparatus, and an exhaust tower which is connected to the vent pipe and discharges a gas, from which a radioactive substance is removed, to the outside.

Compositions made of laminate comprised of porous carbon nanotube (CNT) are disclosed. Uses of the Compositions, particularly for reducing a formation of a load of a microorganism or of a biofilm, are also disclosed.

A carbon molecular sieve (CMS) membrane having improved separation characteristics for separating olefins from their corresponding paraffins is comprised of carbon with at most trace amounts of sulfur and a group 13 metal. The CMS membrane may be made by pyrolyzing a precursor polymer devoid of sulfur in which the precursor polymer has had a group 13 metal incorporated into it, wherein the metal is in a reduced state. The pyrolyzing for the precursor having the group 13 metal incorporated into it is performed in a nonoxidizing atmosphere and at a heating rate and temperature such that the metal in a reduced state (e.g., covalently bonded to carbon or nitrogen or in the metal state).

A product includes a nanoporous membrane having a plurality of carbon nanotubes and a fill material in interstitial spaces between the carbon nanotubes for limiting or preventing fluidic transfer between opposite sides of the nanoporous membrane except through interiors of the carbon nanotubes. The longitudinal axes of the carbon nanotubes are substantially parallel, an average inner diameter of the carbon nanotubes is about 20 nanometers or less, and both ends of at least some of the carbon nanotubes are open. Moreover, the fill material is impermeable or having an average porosity that is less than the average inner diameter of the carbon nanotubes.