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RISS 인기검색어
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- 저자 : 배장순 ( Jang Sun Bae ) (검색결과 7 건)
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김진석,배장순,공명선,Kim, Jin-Seok,Bae, Jang-Sun,Gong, Myeong-Seon 한국재료학회 2001 한국재료학회지 Vol.11 No.2
The mutually reactive copolymers poly[(vinylbenzyl chloride)-co-(n-butyl acrylate)-co-(2-hydroxyethyl methacrylate)] and poly[(4-vinylpyridine)-co-(n-butyl acrylate)-co-(2-hydroxyethyl methacrylate)] were synthesized for the humidity sensitive material by forming simultaneous quaternization. The humidity sensor showed an average resistance of 8.6 M$\Omega$, 310 k$\Omega$ and 12 k$\Omega$ at 30%RH, 60%RH and 90%RH, respectively. The hysteresis and temperature coefficient were $\pm$3%RH and -0.37~-0.40%RH/$^{\circ}C$. The introduction of n-BA and HEMA increased the resistance of the humidity sensor however it enhanced the adherence to the alumina substrate. The response time was 54 seconds changing from 33%RH to 85%RH and the difference of resistance was +0.2%RH after soaking in water for 2 hr.
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Synthesis and Properties of Poly(2-ethynyl-N-propargylpyridinium bromide)
갈용순,이원철,귀태롱,이상섭,배장순,김봉식,장상희,진성호,Gal, Yong Sun,Lee, Won Cheol,Gwi, Tae Rong,Lee, Sang Seop,Bae, Jang Sun,Kim, Bong Sik,Jang, Sang Hui,Jin, Seong Ho Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.2
Ionic conjugated polymer, poly(2-ethynyl-N-propargylpyridinium bromide), was prepared by the cyclopolymerization of 2-ethynyl-N-propargylpyridinium bromide on using various transition metal catalysts, or by thermal methods without adding catalyst. The polymerization of 2-ethynyl-N-propargylpyridinium bromide catalyzed by PdCl2 gave the resulting polymers in relatively high yields. The polymer structure was characterized by various instrumental methods to confirm the conjugated polymer backbone structure carrying cumulated pyridine moiety. The polymers prepared by PdCl2 in DMSO or m-cresol were completely soluble in DMF, DMSO, and formic acid. The inherent viscosities of the resulting polymers were in the range of 0.07-0.19 dL/g. Thermal properties of the polymers were also discussed.
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초청총설논문 : Metal Fiber의 항균특성에 관한 연구
류현진 ( Lyu Hyeon Jin ),배장순 ( Bae Jang Sun ),오경근 ( O Gyeong Geun ) 한국공업화학회 2004 공업화학 Vol.15 No.1
Bacteria, fungi and various allergic materials in indoor air are generated by household goods and food. These pollutants are carriers of various diseases and level of indoor contamination by them revealed very high. Accordingly, the development of effective antimicrobial filters can be suggested to climinate the pollutants and improve indoor air quaiity. Some Metal fibers which have antimicrobial activity from the various metal fibers were selected. Especially copper fiber inhibited the growth of microorganisms on contact dramatically. For that reason, we confirmed the possibility of antimicrobial filter by using the copper fiber.
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초청총설논문 : 석탄회를 이용한 제올라이트의 합성 및 암모니아성 질소 흡착
류완호 ( Lyu Wan Ho ),박찬교 ( Park Chan Gyo ),배장순 ( Bae Jang Sun ) 한국공업화학회 2004 공업화학 Vol.15 No.1
Synthetic zeolite was prepared from coal fly ash which had been abandoned from a domestic power plant as wastes, and was investigated as an absorbent for removed of ammonia from the waste water. The results suggest that pH control step in the synthesis process was an important factor for the removal capacity due to the presence of alkaline materials such as CaO and MgO in fly ash. Accordingly the zeolite synthesized at 4 M-NaOH and 4 hrs under controlling the pH7-9.5 showed the removal efficiency of 80% as much as the commertial one at its highest ate.
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에너지/환경 : 석탄회로 합성한 제올라이트에 대한 암모니아성 질소 흡착특성 조사
류완호 ( Lyu Wan Ho ),이원묵 ( Lee Won Mug ),백일현 ( Baeg Il Hyeon ),배장순 ( Bae Jang Sun ) 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.4
Zeolite was synthesized from coal fly ash produced by a domestic power plant and applied for the removal of ammonia from waste water. Zeolite was synthesized using a hydrothermal method involving an akaline reaction with NaOH, and adsorption experiments and simulations were conducted. Adsorption experiments with the pelletized spherical zeolite were carried out. The experimental data obtained from adsorption isotherms agreed well with the Langmuir equation. Also, most of the correlated results for the fixed bed model based on surface diffusion and Sips adsorption isotherms equation were consistent with the experimental data.
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