• Title/Summary/Keyword: 탈브롬화반응

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Technical Development for Chemical Treatment of Brominated Flame Retardant Polybrominated Diphenyl Ethers (PBDEs) (브롬화 난연제인 Polybrominated Diphenyl Ethers (PBDEs)의 화학적처리 기술 개발)

  • Ryoo, Keon Sang;Hong, Yong Pyo;Hong, Sungwook
    • Journal of the Korean Chemical Society
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    • v.57 no.3
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    • pp.335-340
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    • 2013

  • A chemical reaction of PBDEs was implemented using the polyethylene glycols (PEGs) and KOH, along with different reaction conditions such as temperatures and times. Removal efficiencies of PBDEs before and after chemical reaction were examined by difference of concentration. PBDEs was not removed at lower temperatures of 25 and $50^{\circ}C$. However, under the increased temperature, removal efficiency of PBDEs in ${\sigma}$-xylene was gradually increased, showing completely removal of PBDEs containing 5-6 bromines on biphenyl frame. When increasing the reaction conditions to 4 hours and $150^{\circ}C$, removal efficiency of PBDEs reached almost 100%. In studying the reaction of PEGs with PBDEs, it confirmed that the PBDEs led to less brominated by PEGs through a stepwise process with the successive elimination of bromines.

  • https://doi.org/10.5012/jkcs.2013.57.3.335 인용 PDF KSCI KPUBS HTML

Debromination of 3-(1,2-Dibromo-2-methylpropyl)-1,2-isoxazolines to 3-(2-Methyl-1-propenyl)-1,2-isoxazolines by Sodium Thiolates (3-(1,2-디브로모-2-메틸프로필)-1,2-이속사졸린들의 나트륨 티올레이트들에 의한 탈브롬화 반응을 통한 3-(2-메틸-1-프로페닐)-1,2-티올레이트들에 의한 탈브롬화 반응을 통한 3-(2-메틸-1-프로페닐)-1,2-이속사졸린들로의 변환반응)

  • Kim, Hyeong Cheol;Jo, Su Yeon;Jeon, Dong Ju;Kim, Hyeong Rae
    • Journal of the Korean Chemical Society
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    • v.45 no.6
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    • pp.608-611
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    • 2001

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