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김진석,배장순,공명선,Kim, Jin-Seok,Bae, Jang-Sun,Gong, Myeong-Seon 한국재료학회 2001 한국재료학회지 Vol.11 No.2
4 차 암모늄염을 형성할 수 있는 공중합체들 poly[(vinylbenzyl chloride)-co-(n-butyl acrylate)-co-(2-hydroxyethyl methacrylate)]와 poly[(4-vinylpyridine)-co-(n-butyl acrylate)-co-(2-hydroxyethyl methacrylate)]를 고분자막 습도센서의 감습재료로 사용하기 위하여 합성하였다. 습도센서는 30%RH, 60%RH 그리고 90%RH에서 평균 저항 값은 각각 8.6 M $\Omega$, 310 k$\Omega$ 그리고 12 k$\Omega$을 보여 주었다. 또한 히스테리시스는 $\pm$3%RH 안에서 나타났으며, 온도의존성 계수는 -0.37~-0.407RH/$^{\circ}C$이었다. 감습막의 조성에서 공중합체 중 n-BA와 HEMA의 도입은 저항을 증가시키는 요인이 되나 기판과의 접착성은 크게 향상되었다. 33%RH에서 85%RH로 또는 역으로 변화할 때의 응답속도는 54초이며 수중에 2시간 침적 후 저항의 변화는 +0.2%RH 이내에서 존재하였다. The mutually reactive copolymers poly[(vinylbenzyl chloride)-co-(n-butyl acrylate)-co-(2-hydroxyethyl methacrylate)] and poly[(4-vinylpyridine)-co-(n-butyl acrylate)-co-(2-hydroxyethyl methacrylate)] were synthesized for the humidity sensitive material by forming simultaneous quaternization. The humidity sensor showed an average resistance of 8.6 M$\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.
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.
건강식품 소재화를 위한 신령버섯 균사체의 배양조건 최적화
백경숙 ( Baeg Gyeong Sug ),배장순 ( Bae Jang Sun ),오경근 ( O Gyeong Geun ) 한국산업식품공학회 2004 산업 식품공학 Vol.8 No.1
The optimization of conditions for the cultivation of Agaricus blazei was conducted in order to do mass production of mycelia by submerged cultivation. The carbon source and nitrogen source of medium were selected with high fructose syrup and soybean flak
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.
석탄회를 이용한 제올라이트의 합성 및 암모니아성 질소 흡착
류완호,박찬교,배장순 한국공업화학회 2004 공업화학 Vol.15 No.1
국내 석탄 화력발전소에서 폐기되는 석탄회를 이용하여 제올라이트를 합성하였으며, 이를 이용하여 폐수 중 암모니아성 질소 제거용 흡착제로서의 활용가능성을 조사하였다. 실험결과 산에 의한 전처리 과정이 중요하고, 4M-NaOH, 반응시간 4 h, pH 7~9.5에서 합성한 제올라이트가 가장 우수한 흡착성능을 보였으며, 이는 상업용 5A형 제올라이트와 비슷한 80%의 흡착성능을 보였다. 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.