An oxidation and grafting method for grafting a bioactive polymer, such as polyNaSS, onto an article, in particular a polymer or ceramic article. The method comprises a step of oxidation by ozonation and a step of grafting by radical polymerisation in a polymerisation station having a first reactor. The two steps of oxidation and grafting are carried out consecutively in different solutions in the reactor of the polymerisation station.

A thermoplastic polymeric nanocomposite particle made by a method comprising: forming a polymer by polymerizing a reactive mixture comprising at least one of a monomer, an oligomer, or combinations thereof; said monomer and oligomer having two reactive functionalities, said polymerizing occurring in a medium also containing dispersed nanofiller particles possessing a length that is less than 0.5 microns in at least one principal axis direction, wherein said nanofiller particles comprise at least one of dispersed fine particulate material, fibrous material, discoidal material, or combinations of such materials, whereby said nanofiller particles become incorporated into the polymer.

A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.

A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.

Herein presented is a high electrical conductivity, uniform, material based on nanoparticles-Li.sup.+-polycarboxylate grafted few-layer graphene oxide including perovskite type nanoparticles for filler in polymeric matrices, in direct and reverse osmosis membranes, in lithium batteries, among others. The material is obtained by a method comprising the step of: preparation of a composite material having polymers with mono- or di-acid groups covalently bonded to graphene; optionally further comprising the preparation of a composite material with graphene covalently bonded to polymers having mono- or di-acid groups that have been replaced by lithium ion; and optionally further comprising the preparation of a composite material with graphene covalently bonded to polymers having mono- or di-acid groups that have been replaced by lithium ion in addition to grafted nanoparticles, including nanoparticles perovskite type.

Electro-responsive hydrogel particles are flowed into a first wellbore formed in a subterranean formation. An electric circuit is established between the first wellbore and a second wellbore formed in the subterranean formation. An electric current is applied through the electric circuit, thereby exposing the electro-responsive hydrogel particles to an electric field and causing at least one of swelling or aggregation of the electro-responsive hydrogel particles to form a flow-diverting plug within the subterranean formation. Water is flowed into the first wellbore to increase hydrocarbon production from the second wellbore.

Nanostructures and associated compositions, systems, and methods are provided. In some embodiments, a nanostructure may comprise polymers, intermolecular bonding groups, and a particle. The polymers may be associated with the particle and the intermolecular bonding groups may be associated with at least some of the polymers. In some embodiments, at least some of the intermolecular bonding groups may have a different chemical composition and/or chemical property than the polymers. In some embodiments, nanostructures may reversibly associate with each other via the intermolecular bonding groups to form a material. In some such cases, the intermolecular bonding groups on different nanostructures may reversibly associate with each other. In some embodiments, the nanostructures may be designed, such that the energy required to disassociate at least a portion of the nanostructures in the material is greater than the energy required to dissociate a single association between intermolecular bonding groups.

Nanostructures and associated compositions, systems, and methods are provided. In some embodiments, a nanostructure may comprise polymers, intermolecular bonding groups, and a particle. The polymers may be associated with the particle and the intermolecular bonding groups may be associated with at least some of the polymers. In some embodiments, at least some of the intermolecular bonding groups may have a different chemical composition and/or chemical property than the polymers. In some embodiments, nanostructures may reversibly associate with each other via the intermolecular bonding groups to form a material. In some such cases, the intermolecular bonding groups on different nanostructures may reversibly associate with each other. In some embodiments, the nanostructures may be designed, such that the energy required to disassociate at least a portion of the nanostructures in the material is greater than the energy required to dissociate a single association between intermolecular bonding groups.

A rubber-steel cord composite in which a rubber composition and a steel cord are vulcanized and adhere to each other, wherein the rubber composition contains 1 to 10 parts by mass of a vulcanizing agent, 0.1 to 5 parts by mass of N,N-dibenzylbenzothiazole-2-sulfenamide, a melamine derivative, and a resorcinol compound, with respect to 100 parts by mass of diene rubber containing natural rubber.

A rubber-steel cord composite in which a rubber composition and a steel cord are vulcanized and adhere to each other, wherein the rubber composition contains 1 to 10 parts by mass of a vulcanizing agent, 0.1 to 5 parts by mass of N,N-dibenzylbenzothiazole-2-sulfenamide, a melamine derivative, and a resorcinol compound, with respect to 100 parts by mass of diene rubber containing natural rubber.