Abstract: A copolymer and a dispersion using same, the copolymer including two or more monomers selected from among a monomer containing two or more substituted or unsubstituted aromatic rings, a monomer containing a straight-chain or branched aliphatic hydrocarbon having 5 to 22 carbon atoms, and a polar monomer containing any one selected from the group consisting of cyano (CN), pyrrolidone (NC4H6O) and carboxylic acid (COOH).

Abstract: Disclosed are a method of preparing an ethylene vinyl alcohol copolymer comprising hydrolyzing an ethylene vinyl acetate copolymer in the presence of a catalyst in a solvent containing alcohol and water to prepare a reaction product containing an ethylene vinyl alcohol copolymer, and a system for preparing an ethylene vinyl alcohol copolymer.

Abstract: Disclosed is a method of preparing ethylene vinyl acetate including adding a monomer containing ethylene and vinyl acetate and a solvent containing alkyl acetate to a reactor and performing polymerization.

Abstract: A copolymer and a dispersion using same, the copolymer including two or more monomers selected from among a monomer containing two or more substituted or unsubstituted aromatic rings, a monomer containing a straight-chain or branched aliphatic hydrocarbon having 5 to 22 carbon atoms, and a polar monomer containing any one selected from the group consisting of cyano (CN), pyrrolidone (NC4H6O) and carboxylic acid (COOH).

Abstract: Provided is a method of manufacturing an ethylene vinyl alcohol copolymer, the method including: introducing a monomer including ethylene and vinyl acetate, and a first solvent into a reactor to manufacture an ethylene vinyl acetate copolymer through polymerization; recovering unreacted ethylene after the polymerization; recovering unreacted vinyl acetate after the polymerization; introducing a second solvent different from the first solvent to manufacture an ethylene vinyl alcohol copolymer from the ethylene vinyl acetate copolymer through transesterification; and separating the second solvent-derived acetate produced from the transesterification by the method described herein.

Abstract: The present disclosure relates to a polymer electrolyte membrane containing polybenzimidazole for a fuel cell and to a method for manufacturing the same. In the polymer electrolyte membrane containing polybenzimidazole for a fuel cell according to the present disclosure, carbon black or a metal-grafted porous filler based on carbon black or carbon black and silica is efficiently dispersed in polybenzimidazole, and physically and chemically bound with polybenzimidazole, and thus the polymer electrolyte membrane has excellent mechanical and thermal properties, can improve impregnating efficiency of phosphoric acid to exhibit high proton conductivity, and can reduce deterioration in ion conductivity of the electrolyte membrane due to the leakage of phosphoric acid.

Abstract: Approaches presented herein enable to the interactive exploration of digital videos. The videos can include digital videos that have casually been captured by consumer devices, such as mobile phone cameras, tablets, and the like. Robust methods and systems are presented that enable such digital videos to be explored in interesting and advantageous ways, including transitions and other such features.

Abstract: A driving voltage supply circuit according to the present invention for an LCD panel which is capable of reducing the power consumption. The noise effect of the circuit is also reduced by reducing an operational frequency of the shift register to one half of an input clock frequency and driving the circuit by using the thusly one-half-reduced clock frequency. The circuit includes first and second input unit that separates and processes data into an (2n+1)th data and a (2n)th data and output the processed data in accordance with a control signal. A divider divides the input clock signal operating the first and second input unit, and a shift register controls the transmission of color signal data from the first and second input units in accordance with a shift register start pulse signal sequentially shifted through n-number of shift registers and the divided clock signal.