http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
손병청,임진남 한국화학공학회 1966 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.4 No.2
Vapor-liquid equilibrium data at atmospheric pressure were obtained for the acetic acid-water system containing magnesium nitrate, cupric nitrate or cadmium nitrate of various concentrations. These data were obtained with a view to ascertaining the possibility of separating acetic acid and water under condition of reversed relative volatility by extractive distillation with increasing salt concentration. The results show a considerable effect of magnesium nitrate or cudric nitrate addition, with a reversal taking place at approximately 10 weight % magnesium nitrate, and 11 weight % cupric nitrate in the liquid phase. A method of graphical representation which is facilitated the interpolation of salt concentration is proposed, and the data is examined by the simple empirical equation which correlates the salt effect.
메타크릴산 메틸과 디에탄올아민의 에스테르 교환반응에 대한 음이온 촉매의 영향
孫秉淸,朴根浩 弘益大學校 1987 弘大論叢 Vol.19 No.2
The transesterification between diethanolamine and methyl methacrylate was kinetically investigated in the presence of zinc compound catalysts at 120℃. The amount of reacted methyl methacrylate was measured by gas chromatography, and the reaction rate also measured from the amount of reactants under each catalyst. The transesterification was carried out in the first order with respect to the concentration of diethanolamine and methyl methacrylate, respectively. The over-all order was 2nd. The apparent rate constant(k') was found to obey first kinetics with respect to. the concentration of catalyst. It shows that according to an increase in basicity of anionic species the rate constant increase, and that a linear relationship exists between ln k and pKa.
孫秉淸 弘益大學校 1975 弘大論叢 Vol.7 No.-
The content of this paper is to present the formula to calculate easily the vapor pressure of liquid according to temperature and to estimate n satisfying equation (9) within ±5% error based on the experimental values ?? for the various groups of substances by means of digital computer, CDC 3200. In conclusion, the application ranges of the eq. (9) are summarized as follows: 1. P=10mmHg through 2 atm, a. For propanol, Butanol, and Pentanol, n=1.985 b. For Acetic acid, Propionitrile, and Butyronitrile, n=2.005 c. For Acetonitrile and capronitrile, n=2.015 d. For others, n=2.000 2. P=2 atm through 5 atm, for all materials, n=1.985 3. P=5 atm through 10 atm, n=1.970
진공 증착법에 의한 Eu ( TTA )3( phen ) 박막의 제작 및 특성 연구
손병청,김영관,황장환,권오관 한국유화학회 1998 한국응용과학기술학회지 Vol.15 No.1
Thin films of Eu(TTA)_3(phen), which was known to show red-light emitting properties, were deposited under various deposition condition. The thickness, surface morphology, and photoluminescence(PL) were measured with α-step profiler, Atomic Force Microscopy(AFM), and PL measurement apparatus. It was found that the thickness of Eu(TTA)_3(phen) film can be controlled precisely by adjusting the amounts of Eu(TTA)_3(phen) in the boat. As the thickness of these films increases, the surface roughness also increases. A structure of Al/Eu(TTA)_3(phen)*(50A°)/TPD(600A°)/ITO was fabricated, Electroluminescence(EL) spectrum of which shows the peak at the wavelength of 618nm.
( N-docosyl pyridinium ) - TCNQ ( 1 : 1 ) 착체의 합성과 Langmuir - Blodgett 초박막 제작
손병청,정순욱 ( Byoung Chung Sohn,Soon Wook Jeong ) 한국유화학회 1989 한국응용과학기술학회지 Vol.6 No.2
(N-docosyl pyridinium)-TCNQ(1:1) complex was synthesized by reacting N-docosyl pyridinium bromide and LiTCNQ. This complex was investigated and confirmed by elemental analysis. U.V.I.R spectra. A stability to the dispersion solvent, which is acetonitrile, dichloromethane, benzene, chloroform and acetonitrile-benzene (1:1, V/V) of (N-docosyl pyridinium)-TCNQ(1:1) complex was investigated by U.V spectrophotometer and was confirmed stabilized on acetonitrile, benzene and acetonitrile-benzene(1:1`V/V) for 7 hours. Using ultra pure water as subphase for L-B film deposition, the Y-type L-B film of (N-docosyl pyridinium)-TCNQ(1:1) complex was farbricated. The electrical conductivities on a perpendicular direction of the L-B film were measured to be 5×10exp(-5)∼5×10exp(-14) S/cm according to the number of layer.
Langmuir-Blodgett(LB)법을 이용한 (N-docosyl pyridinium)-TCNQ(1:2) 착체의 초박막 제작
손병청,정순욱,손태원,강훈,강도열,Shon, Byoung-Chung,Jeong, Soon-Wook,Shon, Tae-Won,Kang, Hun,Kang, Dou-Yol 한국전기전자재료학회 1988 電氣電子材料學會誌 Vol.1 No.4
본 논문에서는 Langmuir-Blodgett법으로 유기초박막을 제작하기 위하여 시료인 (N-docosyl pyridinium)-TCNQ(1:2) 작제를 합성하고 이를 초박막으로 제작한 다음, U.V측정, capacitance측정, 그리고 기판과 수직한 방향의 도전율등을 측정하여 막이 잘 이루어지고 있음을 확인하였다. 한편, 하부 전극을 Al로 할 경우 전극표면에 생기는 자연 산화막(Al$_{2}$O$_{3}$)의 두께는 37.1.angs.정도이었으며 기관과 수직한 방향의 도전율은 약 $10^{-14}$S/cm로 양호한 절연성이었다.
Dimethylphthalate 와 1 , 4-butanediol 의 에스테르 교환반응에 관한 연구
손병청,정순욱 한국유화학회 1992 한국응용과학기술학회지 Vol.9 No.1
The transesterification of dimethylphthalate by 1, 4-butanediol was kinetically investigated in the presence of various metal acetate catalysts at 180℃. The quantity of dimethylphthalate reacted in the reaction flask was measured by gas chromatography. The transesterification was assumed to obey first-order kinetics with respect to dimethylphthalate and 1, 4-butanediol, and a rate equation was derived. The linear relationship was shown between apparent rate constant and reciprocal absolute temperature, the activation energy has been calculated as 7.4kcal with lead acetate. The maximum reaction rate was appeared at the range of 1.5~1.6 of electronegativity of metal ions.
기능성 유기 초박막을 이용한 NO2 가스센서 개발을 위한 기초 연구
손병청,임병오,김용인,손태원,신동명,주재백,정귀영,김영관,강우형,이병호 ( B . C . Sohn,B . O . Rim,Y . I . Kim,T . W . Sohn,D . M . Shin,J . B . Ju,G . Y . Chung,Y . K . Kim,W . H . Kang,B . H . Lee ) 한국유화학회 1995 한국응용과학기술학회지 Vol.12 No.1
Ultra thin films of Tetra-3-hexadecylsulphamoylcopperphthalocyanine(HDSM-CuPc) were formed on various substrates by Langmuir-Blodgett method, where HDSM-CuPc was synthesized by attaching long-chain alkylamine(hexa-decylamine) to CuPc. The reaction product was identified with FT-IR, UV-visible absorption spectroscopies, elemental analysis and thin layer chromatography. The formation of Ultrathin Langmuir-Blodgett(LB) films of HDSM-CuPc was confirmed by FT-IR and UV-visible spectroscopies. A quartz piezoelectric crystal coated with LB films of HDSM-CuPc was examined as a gas sensor for NO_2 gas. HDSM-CuPc LB films were transferred to a quartz crystal microbalance(QCM) in the form of Z-type multilayers. Response characteristics of film-coated QCM to NO_2 gas concentrations over a range of 100~600ppm have been tested with a thickness of 5~20 layers of HDSM-CuPc. Changes in frequency by the response time was slow.