• 제목/요약/키워드: 질산염에스테르

검색결과 3건 처리시간 0.019초

디니트라미드 염의 합성 (A Study on the Synthesis of Dinitramide Salts)

  • 정규현;심현호
    • 공업화학
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    • 제9권1호
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    • pp.155-157
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    • 1998
  • 디니트라미드 염은 질산 염보다 산소 함량이 증가되어 효과적인 고체 산화제로 쓰일 수 있다. $HNO_3$-TFAA(trifiluoroacetic anhydride)-$Br_2$를 이용하여 4-아자헵탄디산 에스테르에 니트로화 반응을 시킨 후 염기 처리하여 retro-Michael 반응으로 3-니트라미노프로판산 에스테르를 얻었다. 이 니트라미노 화합물에 $NO_2BF_4$를 반응시켜 디니트라미노 화합물을 얻고, 여기에 염기를 첨가하면 디니트라미드 염을 제조할 수 있다.

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무기 안정제 $CaCO_3$ 첨가에 따른 단기 추진제의 저장 수명에 관한 연구 (Research on the Storage Life of Single Base Propellant by Adding Inorganic Stabilizer $CaCO_3$)

  • 장일호;조기홍
    • 한국군사과학기술학회지
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    • 제10권3호
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    • pp.200-207
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    • 2007
  • Single base propellant using a nitrate ester compound NC decomposes naturally during storage time. Therefore, the research for storage life extension is necessary to single base propellant. In this research, $CaCO_3$ inorganic stabilizer had been added into single base propellants up to 0.3%, and the accelerated aging test of the propellant was started. And then, with applying the Arrhenius equation, the storage life of the test of the propellant was contrasted with that of reference propellant. As a result, the storage life of the propellant containing $CaCO_3$ inorganic stabilizer was about twice longer than the reference propellant.

디메틸프탈레이트와 에틸렌글리콜의 에스테르 교환반응에서 질산염 촉매의 영향 (The Effect of Nitrate Catalysts in Transesterification Reaction between Dimethyl Phthalate and Ethylene Glycol)

  • 박근호;손병청
    • 한국응용과학기술학회지
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    • 제10권1호
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    • pp.23-29
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    • 1993
  • Transesterification reaction between dimethyl phthalate and ethylene glycol was kinetically investigated in the presense of various metal nitrate catalysts at $170^{\circ}C$. The reaction rates measured by the amount of distilled methanol from the reaction vessel. The transesterification reaction was carried out under the first order conditions respect to the concentration of dimethyl phthalate and catalyst, respectively. The over all order was 2nd. By Arrhenius plot, the activation energy was calculated as 17.4kcal/mole and 17.2kcal/mole on the transesterification reaction with zinc nitrate and lead nitrate, respectively. Apparent rate constant, k' was appeared linear about concentration of catalyst.