A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.

A colored resin particle dispersion and an inkjet ink are provided which preferably exhibit excellent rub fastness and alcohol resistance, and yield printed items having high image density. Specifically, a colored resin particle dispersion includes colored resin particles, a basic dispersant and a non-aqueous solvent. The colored resin particles include a colorant, a thermoplastic solid resin and a liquid organic compound having an acidic group, and the thermoplastic solid resin has a polar parameter p and a hydrogen bonding parameter h from the Hansen solubility parameters that satisfy p=2.5 to 11.0 and h=5.0 to 12.0 respectively is provided.

A resin composite in which a fiber-reinforced resin material comprising fibers and a resin, and a resin expanded body are integrally laminated, wherein the resin expanded body has a hole opened at the interface with the fiber-reinforced resin material and resin of the fiber-reinforced resin material is caused to flow into the hole.

A hydrogel composition includes 0.1 to 10 wt % of a cross-linking agent, 0.2 to 6 wt % of a gelling polymer, 0.5 to 20 wt % of a polyhydric alcohol, and 70 to 90 wt % of purified water to maintain a form without a supporter, be stable without fluidization even when a hydrogel is immersed in cosmetics or pharmaceuticals, and allow the cosmetics or the pharmaceuticals to be uniformly delivered to skin.

A copolymer, a method for producing the copolymer, a porous structure formed by the copolymer, a method for producing the porous structure, and a porous carbon sphere formed by carbonizing the porous structure are shown. The copolymer has a chemical structure of formula (1) or (2): ##STR00001##
wherein the molecular weight of the copolymer structure is 120,000 or less g/mole, m and t are both greater than 0, 8%p80%, y0, z0, and X is selected from Cl, Br and I.

A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.

A resin composite in which a fiber-reinforced resin material comprising fibers and a resin, and a resin expanded body are integrally laminated, wherein the resin expanded body has a hole opened at the interface with the fiber-reinforced resin material and resin of the fiber-reinforced resin material is caused to flow into the hole.

The present invention discloses an electrospinning composition comprising a catalyst and a functionalized polymer or copolymer bearing one or more epoxy ring. The mixture further comprises an anhydride, preferably phthalic anhydride as a cross-linking agent. Wherein a molar ratio of epoxy to anhydride in the electrospinning composition is within the range of 1:1 to 50:1. The present invention further discloses a preparation method of the electrospinning composition and an electrospun nano-/submicrostructures prepared using the method and composite material comprising the electrospun nano-/submicrostructures.

A method of forming an organic polymeric particle, comprising (i) forming a core of an organic hydrophilic polymer with monomers that contains an acid group, a latent acid group, or a combination thereof; (ii) forming a shell that comprises an organic polymer with monomers that contains an acid group, a latent acid group, or a combination thereof to encapsulate the core, where the shell has an initial size; expanding the core to form a hollow porous structure from the shell, where the hollow porous structure has an expanded size larger than an initial size of the shell; and (iii) hydrolyzing the acid group, the latent acid group or the combination thereof of the hollow porous structure and the organic hydrophilic polymer to give the organic polymeric particle a void volume fraction of 40 percent to 85 percent.

The present invention provides a method of producing core/shell-type fluorescent dye-containing nanoparticles for immunohistochemical staining or live cell imaging, the method including: the step 1 of polymerizing monomers for thermoplastic resin synthesis in the presence of a fluorescent dye and thereby preparing core particles composed of a thermoplastic resin containing the fluorescent dye; and the step 2 of coating the core particles each with a shell layer composed of a thermosetting resin. By the method of producing fluorescent dye-containing nanoparticles according to the present invention, fluorescent dye-containing nanoparticles having a high brightness, whose dye does not elutes into water, physiological saline, culture medium and the like, can be produced, and the fluorescent dye-containing nanoparticles can be effectively utilized in immunohistochemical staining and live cell imaging.