Abstract: Disclosed is preparation of a freestanding ion gel having high stability and high ionic conductivity based on surface-activity ionic liquids. Further, disclosed is a solid electrolyte using the ion gel. A method for preparing the freestanding ion gel include mixing a surface-activity ionic liquid having an alkyl group having 8 or greater carbon atoms, a crosslinking agent, water and oil with each other to form a bicontinuous microemulsion mixture; ii) adding an initiator to the mixture; and iii) curing the mixture using ultraviolet (UV) or thermal energy to form a freestanding ion gel.

Abstract: Proposed are a non-aqueous freestanding ion conductive gel for application to an electrolyte of a lithium secondary battery and a preparation method thereof. The non-aqueous freestanding ion conductive gel including: a matrix including a hydrophobic polymer famed through polymerization of monomers having an unsaturated double-bond; a domain dispersed in the matrix and including a hydrophilic ionic liquid; and a surface active layer including an ionic liquid having surface activity, in which a portion of a hydrophobic segment in a chain of the ionic liquid having surface activity is positioned in the matrix, and a portion of a hydrophilic segment in the chain is positioned in the domain. The gel has high ionic conductivity, high lithium ion transference number, and excellent mechanical strength.

Abstract: The present invention relates to a fiber composite for a strain sensor and a method for producing the same. The composite includes a stretchable fiber; a conductive elastic polymer layer coated on the stretchable fiber; polymer beads disposed on the stretchable fiber or on the elastic polymer layer; and a conductive elastic polymer layer covering the polymer beads. The fiber composite is durable and stable. Therefore, a strain sensor produced using the fiber composite exhibits excellent durability, recoverability, repeatability and sensitivity, and a fast sensing speed.

Abstract: A method for preparing porous inorganic particles is disclosed. The method includes the steps of: (a) preparing an emulsion comprising an inorganic precursor and a polar solvent; (b) adding an organic solvent to the emulsion of step (a) to swell emulsion particles; (c) mixing the swollen emulsion of step (b) with polymer particles having a positive charge on the surface thereof; (d) adding a surfactant to the mixture of step (c) and removing the organic solvent; (e) adding an initiator to the result of step (d) to polymerize the same; and (f) firing the result of step (e) to remove the polymer particles so as to form macropores.

Abstract: The present specification describes a method for manufacturing porous inorganic particles and a light-reflecting composition comprising porous inorganic particles. According to an embodiment of the present disclosure it is possible to provide a method for manufacturing porous inorganic particles capable of selective transmission or scattering of light having a specific wavelength range by controlling pore size and shell thickness.

Abstract: A method for preparing porous inorganic particles is disclosed. The method includes the steps of: (a) preparing an emulsion comprising an inorganic precursor and a polar solvent; (b) adding an organic solvent to the emulsion of step (a) to swell emulsion particles; (c) mixing the swollen emulsion of step (b) with polymer particles having a positive charge on the surface thereof; (d) adding a surfactant to the mixture of step (c) and removing the organic solvent; (e) adding an initiator to the result of step (d) to polymerize the same; and (f) firing the result of step (e) to remove the polymer particles so as to form macropores.

Abstract: Disclosed is preparation of a freestanding ion gel having high stability and high ionic conductivity based on surface-activity ionic liquids. Further, disclosed is a solid electrolyte using the ion gel. A method for preparing the freestanding ion gel include mixing a surface-activity ionic liquid having an alkyl group having 8 or greater carbon atoms, a crosslinking agent, water and oil with each other to form a bicontinuous microemulsion mixture; ii) adding an initiator to the mixture; and iii) curing the mixture using ultraviolet (UV) or thermal energy to form a freestanding ion gel.

Abstract: The present invention relates to a fiber composite for a strain sensor and a method for producing the same. The composite includes a stretchable fiber; a conductive elastic polymer layer coated on the stretchable fiber; polymer beads disposed on the stretchable fiber or on the elastic polymer layer; and a conductive elastic polymer layer covering the polymer beads. The fiber composite is durable and stable. Therefore, a strain sensor produced using the fiber composite exhibits excellent durability, recoverability, repeatability and sensitivity, and a fast sensing speed.

Abstract: One embodiment of the present disclosure provides a method for producing an angle-independent colloidal particles-based structure, the method having: preparing two or more types of hollow colloidal particles, wherein the types are distinguished based on a size of the hollow colloidal particles thereof, wherein the types have different particle sizes; and dispersing the at least two types of hollow colloidal particles to produce an amorphous structure, wherein the amorphous structure realizes the same color independently of an angle of an incident light thereto.

Abstract: One embodiment of the present disclosure provides a method for producing an angle-independent colloidal particles-based structure, the method having: preparing two or more types of hollow colloidal particles, wherein the types are distinguished based on a size of the hollow colloidal particles thereof, wherein the types have different particle sizes; and dispersing the at least two types of hollow colloidal particles to produce an amorphous structure, wherein the amorphous structure realizes the same color independently of an angle of an incident light thereto.

Abstract: Provided are a silver nanowire conductive film coated with an oxidation protection layer and a method for fabricating the same. A silver nanowire conductive film coated with an oxidation protection layer includes: a substrate; silver nanowires disposed on the substrate; and an oxidation protection layer coated on the silver nanowires, wherein the oxidation protection layer comprises an oxide.

Abstract: Provided is a manufacturing method of uniformly spherical gold nanoparticles using a synthesis method for controlling a size and a shape by repeating an etching and growing.

Abstract: Disclosed is a method for preparing rod-like silica fine particles including carbon, the method including: a first step of preparing a mixed solvent by mixing a surfactant with alcohol, and then preparing a mixed solution by adding water, ethanol, ammonia water and a salt to the mixed solvent; a second step of forming rod-like silica fine particles by adding a silica precursor to the mixed solution; and a third step of carbonizing the rod-like silica fine particles, and through a sol-gel reaction of the silica precursor and a carbonization process thereof.

Abstract: Provided is a manufacturing method of uniformly spherical gold nanoparticles using a synthesis method for controlling a size and a shape by repeating an etching and growing.

Abstract: Disclosed is a method for preparing rod-like silica fine particles including carbon, the method including: a first step of preparing a mixed solvent by mixing a surfactant with alcohol, and then preparing a mixed solution by adding water, ethanol, ammonia water and a salt to the mixed solvent; a second step of forming rod-like silica fine particles by adding a silica precursor to the mixed solution; and a third step of carbonizing the rod-like silica fine particles, and through a sol-gel reaction of the silica precursor and a carbonization process thereof.

Abstract: Disclosed is an adjuvant for use in simultaneous polishing of a cationically charged material and an anionically charged material, wherein the adjuvant comprises a polyelectrolyte salt containing: (a) a mixture of a linear polyelectrolyte having a weight average molecular weight of 2,000˜50,000 with a graft type polyelectrolyte that has a weight average molecular weight of 1,000˜20,000 and comprises a backbone and a side chain; and (b) a basic material. CMP (chemical mechanical polishing) slurry comprising the above adjuvant and abrasive particles is also disclosed. The adjuvant comprising a mixture of a linear polyelectrolyte with a graft type polyelectrolyte makes it possible to increase polishing selectivity as compared to CMP slurry using the linear polyelectrolyte alone, and to obtain a desired range of polishing selectivity by controlling the ratio of the linear polyelectrolyte to the graft type polyelectrolyte.

Abstract: Provided are a silver nanowire conductive film coated with an oxidation protection layer and a method for fabricating the same. A silver nanowire conductive film coated with an oxidation protection layer includes: a substrate; silver nanowires disposed on the substrate; and an oxidation protection layer coated on the silver nanowires, wherein the oxidation protection layer comprises an oxide.

Abstract: Disclosed is an adjuvant for use in simultaneous polishing of a cationically charged material and an anionically charged material, wherein the adjuvant comprises a polyelectrolyte salt containing: (a) a mixture of a linear polyelectrolyte having a weight average molecular weight of 2,000˜50,000 with a graft type polyelectrolyte that has a weight average molecular weight of 1,000˜20,000 and comprises a backbone and a side chain; and (b) a basic material. CMP (chemical mechanical polishing) slurry comprising the above adjuvant and abrasive particles is also disclosed. The adjuvant comprising a mixture of a linear polyelectrolyte with a graft type polyelectrolyte makes it possible to increase polishing selectivity as compared to CMP slurry using the linear polyelectrolyte alone, and to obtain a desired range of polishing selectivity by controlling the ratio of the linear polyelectrolyte to the graft type polyelectrolyte.

Abstract: Disclosed is an adjuvant for use in simultaneous polishing of a cationically charged material and an anionically charged material, which forms an adsorption layer on the cationically charged material in order to increase polishing selectivity of the anionically charged material, wherein the adjuvant comprises a polyelectrolyte salt containing: (a) a mixture of a linear polyelectrolyte having a weight average molecular weight of 2,000˜50,000 with a graft type polyelectrolyte that has a weight average molecular weight of 1,000˜20,000 and comprises a backbone and a side chain; and (b) a basic material. CMP (chemical mechanical polishing) slurry comprising the above adjuvant and abrasive particles is also disclosed.

Abstract: Disclosed is an adjuvant for controlling polishing selectivity when polishing a cationically charged material simultaneously with an anionically charged material. CMP slurry comprising the adjuvant is also disclosed. The adjuvant comprises: (a) a polyelectrolyte that forms an adsorption layer on the cationically charged material in order to increase the polishing selectivity of the anionically charged material; (b) a basic material; and (c) a fluorine-based compound. when the adjuvant for controlling polishing selectivity of CMP slurry according to the present invention is applied to a CMP process, it is possible to increase the polishing selectivity of a silicon oxide layer, to obtain a uniform particle size of CMP slurry, to stabilize variations in viscosity under an external force and to minimize generation of microscratches during a polishing process.