Abstract: Disclosed herein is a quantifying method of uncertainty of measured value by close match span calibration of measuring sensor comprising a step of: a quantifying using below equation I. u c ( x bag ) ? [ 1 f cyl ? u ? ( R bag ) ] 2 + [ 1 f cyl ? u ? ( R cyl ) ] 2 + u 2 ( x cyl ) ( I ) wherein, uc is a combined standard uncertainty, Xbag is a measured value of a test, xcyl is standard value, fcyl is standard response factor (sensitivity coefficient), Rbag is a signal value of a test, represents xbag·fbag, Rcyl represents xcyl·fcyl, and u is standard uncertainty.

Abstract: Thermoplastic elastomer compositions comprising acrylic multigraft copolymers are described. The multigraft copolymers comprise a rubbery polyacrylate backbone and a plurality of randomly spaced glassy polyacrylate side chains. The multigraft copolymers can be prepared using a facile grafting through method that can provide copolymers with enhanced purity. The acrylic multigraft copolymers exhibit microphase separated morphologies and “superelastomeric” properties, including an elongation at break, stress at break, and/or strain recovery behavior that exceeds that of conventional triblock copolymer polyacrylate thermoplastic elastomers.

Abstract: Disclosed herein is a quantifying method of uncertainty of measured value by close match span calibration of measuring sensor comprising a step of: a quantifying using below equation I. u c ? ( x bag ) ? [ 1 f cyl ? u ? ( R bag ) ] 2 + [ 1 f cyl ? u ? ( R cyl ) ] 2 + u 2 ? ( x cyl ) ( I ) wherein, uc is a combined standard uncertainty, Xbag is a measured value of a test, xcyl is standard value, fcyl is standard response factor (sensitivity coefficient), Rbag is a signal value of a test, represents xbag.fbag, Rcyl represents xcyl.fcyl, and u is standard uncertainty.

Abstract: The present invention relates to a method for determining loss of gas in a gas container. According to an embodiment of the present invention, the method for determining the loss of gas in the gas container is characterized by including the steps of (a) filling a first container (10) with a component gas and a balance gas, (b) measuring a gas pressure inside the first gas container (11), (c) allowing the first gas container and a second gas container having an evacuated inside to communicate and performing a first-stage gas pressure split, and (d) measuring a gas pressure inside the second gas container, wherein an amount of the component gas adsorbed inside the gas container is calculated through a difference between a measured value of step (b) and a measured value of step (d) and is determined as an amount of gas loss.

Abstract: Thermoplastic elastomer compositions comprising acrylic multigraft copolymers are described. The multigraft copolymers comprise a rubbery polyacrylate backbone and a plurality of randomly spaced glassy polyacrylate side chains. The multigraft copolymers can be prepared using a facile grafting through method that can provide copolymers with enhanced purity. The acrylic multigraft copolymers exhibit microphase separated morphologies and “superelastomeric” properties, including an elongation at break, strain at break, and/or strain recovery behavior that exceeds that of conventional triblock copolymer polyacrylate thermoplastic elastomers.

Abstract: The present invention relates to a method for determining loss of gas in a gas container. According to an embodiment of the present invention, the method for determining the loss of gas in the gas container is characterized by including the steps of (a) filling a first container (10) with a component gas and a balance gas, (b) measuring a gas pressure inside the first gas container (11), (c) allowing the first gas container and a second gas container having an evacuated inside to communicate and performing a first-stage gas pressure split, and (d) measuring a gas pressure inside the second gas container, wherein an amount of the component gas adsorbed inside the gas container is calculated through a difference between a measured value of step (b) and a measured value of step (d) and is determined as an amount of gas loss.

Abstract: Methods of preparing macromonomers, e.g., single- or double-tailed macromonomers, using radical polymerization of a first monomer in solution or in an emulsion are described. Methods of using the macromonomers in the preparation of multigraft copolymers are also described. For instance, the macromonomer prepared by radical polymerization can be used in an emulsion copolymerization with a second monomer to form a random multigraft copolymer. The random multigraft co-polymers can be superelastomers.

Abstract: Multigraft copolymers having various structures, e.g., comb and centipede structures, can be prepared from emulsion copolymerization of monomers and macromonomers. The emulsion copolymerization can be initiated by a thermally activated radical initiator or a redox initiation system. The multigraft copolymers can have high molecular weight and/or a large number of branch points. Elastomer or adhesive compositions of the copolymers can be prepared. Also described are poly(n-alkyl acrylate-graft-styrene) multigraft copolymers.

Abstract: Multigraft copolymers having various structures, e.g., comb and centipede structures, can be prepared from emulsion copolymerization of monomers and macromonomers. The emulsion copolymerization can be initiated by a thermally activated radical initiator or a redox initiation system. The multigraft copolymers can have high molecular weight and/or a large number of branch points. Elastomer or adhesive compositions of the copolymers can be prepared. Also described are poly(n-alkyl acrylate-graft-styrene) multigraft copolymers.

Abstract: Provided are a blue-light-emitting iridium complex, an iridium complex monomer, a phosphorescent polymer, and an organic electroluminescent device using same. The blue-light-emitting iridium complex contains a ligand having a low electron density structure, such as triazole or tetrazole. The iridium complex monomer containing a ligand having a polymerizable vinyl group produces a blue phosphorescent polymer through the polymerization with carbazole derivatives. The organic electroluminescent device comprises a first electrode, a second electrode, and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer contains the above-described iridium complex or polymer containing the iridium complex.

Abstract: An organic crystalline composition is provided. The organic crystalline composition includes a main material having ?-conjugated back bone and a functional group containing an atom having an unshared electron pair, and a linking material combining with the adjacent main material at the functional group by quaternization, organic material-metal interaction, ionic bonding, or hydrogen bonding.

Abstract: Provided are a blue-light-emitting iridium complex, an iridium complex monomer, a phosphorescent polymer, and an organic electroluminescent device using same. The blue-light-emitting iridium complex contains a ligand having a low electron density structure, such as triazole or tetrazole. The iridium complex monomer containing a ligand having a polymerizable vinyl group produces a blue phosphorescent polymer through the polymerization with carbazole derivatives. The organic electroluminescent device comprises a first electrode, a second electrode, and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer contains the above-described iridium complex or polymer containing the iridium complex.

Abstract: Provided are a vinyl-biphenylpyridine monomer and a polymer thereof. More particularly, the present invention provides a vinyl-biphenylpyridine monomer having a side chain of pyridine or phenylpyridine as a functional group, a homopolymer of which molecular weight and molecular weight distribution are controlled using the monomer, and a block copolymer of which molecular structure and molecular weight are controlled to facilitate synthesis of an organic metal complex. Accordingly, the present invention provides a vinyl-biphenylpyridine monomer and a polymer thereof which are effectively used as nano and optical functional materials.

Abstract: An anionic polymerization method for styrene derivative containing pyridine as functional group is provided. The method includes forming a complex of (vinylphenyl)-pyridine and lithium chloride and performing anionic polymerization. Accordingly, a polymer of styrene derivative containing pyridine can be obtained. The polymer has excellent optical properties, and its molecular weight and molecular weight distribution can be controlled.

Abstract: Provided is a crystalline organic polymer in which a main chain formed of amorphous polymer or monomer having a functional group is combined with a side chain by quaternization, cross-linking, hydrogen bonding or organic material-metal interaction. The main chain material having a functional group is combined with the side chain material to have crystallinity, and the organic polymer having crystallinity exhibits excellent diode characteristics.

Abstract: Disclosed are a monomer of iridium complex having a fluoro group as a functional group, a monomer of carbazole derivative having a hydroxy group as the functional group, and a copolymer containing the monomers in its main chain. The iridium complex used as a phosphorescent material and the carbazole derivative having an excellent hole transporting capability are synthesized as the monomer to form the copolymer. The content of iridium complex is easily controlled, and the carbazole derivative and iridium complex are contained in the main chain during the copolymer formation, thereby capable of manufacturing a light emitting device with higher heat resistance and chemical stability.

Abstract: An anionic polymerization method for styrene derivative containing pyridine as functional group is provided. The method includes forming a complex of (vinylphenyl)-pyridine and lithium chloride and performing anionic polymerization. Accordingly, a polymer of styrene derivative containing pyridine can be obtained. The polymer has excellent optical properties, and its molecular weight and molecular weight distribution can be controlled.

Abstract: Provided are a vinyl-biphenylpyridine monomer and a polymer thereof. More particularly, the present invention provides a vinyl-biphenylpyridine monomer having a side chain of pyridine or phenylpyridine as a functional group, a homopolymer of which molecular weight and molecular weight distribution are controlled using the monomer, and a block copolymer of which molecular structure and molecular weight are controlled to facilitate synthesis of an organic metal complex. Accordingly, the present invention provides a vinyl-biphenylpyridine monomer and a polymer thereof which are effectively used as nano and optical functional materials.

Abstract: Disclosed are a monomer of iridium complex having a fluoro group as a functional group, a monomer of carbazole derivative having a hydroxy group as the functional group, and a copolymer containing the monomers in its main chain. The iridium complex used as a phosphorescent material and the carbazole derivative having an excellent hole transporting capability are synthesized as the monomer to form the copolymer. The content of iridium complex is easily controlled, and the carbazole derivative and iridium complex are contained in the main chain during the copolymer formation, thereby capable of manufacturing a light emitting device with higher heat resistance and chemical stability.

Abstract: The present invention relates to vinyl-phenyl monomers and polymers prepared therefrom. More particularly, the present invention is to provide the vinyl-phenyl monomers expressed by formula (1) which are capable of various polymerization such as radical polymerization, cation polymerization, anion polymerization and metallocene catalyzed polymerization due to resonance effect of phenyl group and changing characteristics variously and thus, suitable in the synthesis of general-purpose polymers which can be used in photo-functional materials by forming a complex with a metal component having an optical characteristic.