• Journal of the Korean Chemical Society
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• v.13 no.4
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• pp.347-353
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• 1969

trans-1, 4-Dideutero-2-butenedial ditosylhydrazone has been synthesized to investigate the path of the acetylene formation in the pyrolysis of the dry lithium salt. Mass spectra showed that three isotope isomers of acetylene which might come from the strained ring compound, tricyclo[1, 1, 0, ] butane, were formed.

• Bulletin of the Korean Chemical Society
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• v.26 no.10
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• pp.1617-1619
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• 2005

• The Transactions of the Korean Institute of Electrical Engineers
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• v.41 no.8
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• pp.875-882
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• 1992

Titanium carbide(TiC) films, known as having excellent characteristics of resistance to wear and corrosion, were deposited on SUS-304 sheets using HCD(Hollow Cathode Discharge) reactive ion plating with acetylene gas as the reactant gas. The characteristics of TiC films were examined by X-ray diffraction, micro-Vickers hardness tester, ${\alpha}$-step, SEM(Scanning Electron Spectroscopy), ESCA(Electron Spectroscopy for Chemical Analysis), and AES(Auger Electron Spectroscopy) and the results were discussed with regard to the changes of various deposition conditions(bias voltage, acetylene flow rate, temperature).

• Bulletin of the Korean Chemical Society
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• v.18 no.7
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• pp.703-706
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• 1997

Response surface method was applied to the predicting optimum conditions of benzene synthesis for radiocarbon dating. The weight of carbon dioxide, the temperature of lithium container for producing acetylene and the activation temperature of catalyst which was used for the cyclization of acetylene to benzene were used as experimental factors. The yields of benzene synthesis were measured from twelve experiments which were carried out under various experimental conditions. The polynomial equation was obtained by using three experimental factors and yields. The validity of polynomial equation was confirmed by comparing the calculated yields with the experimental ones.

• Elastomers and Composites
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• v.30 no.4
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• pp.282-297
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• 1995

• 월간산업보건
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• s.108
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• pp.17-17
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• 1997

• 월간산업보건
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• s.109
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• pp.25-25
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• 1997

• Elastomers and Composites
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• v.35 no.1
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• pp.53-62
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• 2000

Zinc plated steel tire cords were treated with RF plasma polymerization coating of acetylene or butadiene in order to enhance adhesion to rubber compounds. Plasma polymerization was carried out as a function of plasma power, treatment tune and gas pressure. In order to maximize adhesion, argon plasma etching was performed, with carrier gas such as argon, nitrogen and oxygen, while the adhesion of tire cords was evaluated via TCAT. Best results were obtained from a combination treatment of argon etching (90 W. 10 min, 30 mTorr) and acetylene plasma polymerization coating (10 W, 30 sec, 30 mTorr) with argon carrier gas (25/5:acetylene/argon). These samples exhibited a pull out force of 285N which is comparable to that obtained from the brass plated tire cords (290N).

• Journal of the Korean Vacuum Society
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• v.7 no.2
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• pp.127-134
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• 1998

Stainless steel is being used widely for various purposes due to its good corrosion resistance. There has been much research to produce a colored and corrosion-resistant stainless steel by several methods to use in decorating. In this experiment, we coated TiN(C,O,H)films on the SUS304 substrates with the DC magnetron sputtering system and then studied the texture and color of the films as a function of additional gases being inserted into the system. A (220) texture of TixN film changed to (200) by the addition of either hydrogen or the acetylene and changed further to (111) with an increase of the additional acetylene content. The addition of oxygen gas changed from the texture(220) to (111) to (200). The color of the TixN film changed from gold to gray to green with the increase of the content by the addition of oxygen gas, while it changed to pink and finally to gray with the increased of the content by the addition of acetylene gas. Reflectance increased in the region of short wavelength by the addition of hydrogen, but decreased with the increase of the oxygen and the acetylene content.

• Applied Chemistry for Engineering
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• v.30 no.1
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• pp.29-33
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• 2019

Carbon nanotubes, nanofibers and powders were used for acetylene adsorption experiments. A total of 15 different experiments were designed by 3-level of Box-Behnken Design (BBD) with 3 factors including the Pd concentration of 0 to 5%, adsorption temperature of 30 to $80^{\circ}C$ and $C_2H_2/CO_2$ of 3 to 10. Based on those data, a second order polynomial regression analysis was used to derive the adsorption amount prediction equation according to operating conditions. The adsorption temperature showed the greatest influence index while the $C_2H_2/CO_2$ ratio showed the smallest according to the F-value measurement of the ANOVA analysis. However, there was little interaction between major factors. In the adsorption optimization analysis, a 22.0 mmol/g was adsorbed under the conditions of Pd concentration of 3.0%, adsorption temperature of $47^{\circ}C$ and $C_2H_2/CO_2$ of 10 with 95.9% accuracy.