가용성 또는 불용성 Polystyrene 에 결합된 수산기 함유 Polyetheramine 의 합성

정광보,고노유타가,도모이마사오 ( Kwang Bo Chung,Yutaka Kohno,Masao Tomoi ) 한국공업화학회 1995 공업화학 Vol.6 No.2

haloalkyl, tosyloxyalkyl, epoxy기를 함유하는 선형 또는 가교 polystyrene과 bis[2-(2-hydroxyelhoxy)ethyl]amine(ATEG)과의 반응에 의해 hydroxyl기 함유 polyelheramine 구조의 가용성, 불용성 polystyrene을 합성하였다. 고정화 ATEG의 친수성은 환치환율의 증가에 따라 증가하였고, 친유성은 반대경향을 나타내었다. Soluble or insoluble polystyrenes with hydroxyl-containing polyetheramine structures were prepared by the reaction of linear or crosslinked polystyrenes containing haloalkyl, tosyloxyalkyl or epoxy groups with bis[2-(2hydroxyethoxy)ethyl]amine(ATEG). The hydrophilicity of the immobilized ATEG increased with increasing ring substitution and the lipophilicity indicated an opposite tendency.

ATEG 잔기를 갖는 가용성 또는 불용성 Polystyrene 의 상이동촉매 활성

정광보,고노유타가,도모이마사오 ( Kwang Bo Chung,Yutaka Kohono,Masao Tomoi ) 한국공업화학회 1995 공업화학 Vol.6 No.2

bis(2-(2-hydroxyethoxy)ethyl)amine(ATEG) 구조를 갖는 가용성 또는 불용성 polystyrene의 상이동촉매 활성을 검토하였다. ATEG 구조를 갖는 가용성 polystyrene은 2상계에서 수용성 NaOH와 KOH와의 반응에 의해 alkoxides를 생성하였다. polymer 골격과 ATEG사이의 산소를 갖는 측쇄의 도입으로 상대 양이온이 ATEG와 측쇄의 산소 donor의 협동작용에 의해 결합되는 유사 cryptand alkoxides가 형성되었다. ATEG기를 갖는 가용성, 불용성 polymer는 각각 2상계, 3상계 조건하에서 2-bromoethylbenzene의 수용성 NaOH와 KOH와의 브롬화수소이탈 반응에서 고활성을 나타내었다. 측쇄잉여 산소 donors의 협동작용으로 촉매의 활성은 증가하였다. The phase-transfer catalytic activity of soluble or insoluble polystyrenes with bis(2-(2-hydroxyethoxy)ethyl)amine(ATEG) residue has been studied. The soluble polystyrenes with ATEG residue afforded polymeric alkoxides by the reaction with aqueous NaOH or KOH under two-phase conditions. The introduction of oxygen-containing spacer chains between ATEG residue and the polymer backbone resulted in the formation of cryptand-like alkoxides, in which the counter cations were bound by cooperative coordination of the oxygen donors in the ATEG residue and in the spacers. The soluble and insoluble polystyrenes with ATEG residue exhibited high catalytic activity for the dehydrobromination of 2-bromoethylbenzene with aqueous NaOH or KOH under two- and three-phase conditions, respectively. The extra coordination of the oxygen donors in the spacers resulted in increased catalytic activity.

수산기 함유 미세다공성 polystyrene 수지의 합성

정광보,김학희 ( Kwang Bo Chung,Hak Hee Kim ) 한국공업화학회 1995 공업화학 Vol.6 No.1

2-(vinylbenzyloxy)ethanol 또는 2-(2-vinylbenzyloxyethoxy)ethanol과 styrene, divinylbenzene(2 ㏖-%)과의 현탁 공중합법에 의해 각각 2-Hydroxyethoxymethyl화 또는 2-(2-hydroxyethoxy)ethoxymethyl화 미세다공성 polystyrene 수지를 합성하였다. 이들은 여러가지 시약, 리간드, 촉매부를 poly(oxyethylene)쇄에 의해 polystyrene담체에 고정화시키는 일반적인 담체가 될 것이다. 2-Hydroxyethoxymethylated or 2-(2-hydroxyethoxy)ethoxymethylated microporous polystyrene resins were synthesized by suspension copolymerization of 2-(vinylbenzyloxy)ethanol or 2-(2-vinylbenzyloxyethoxy)ethanol, respectively, with styrene and divinylbenzene(2 ㏖-%). These will be a convenient supports to immobilize various reagent, ligand, or catalyst moieties on polystyrene supports by poly(oxyethylene) spacers.

이민 - 케토 엔아민 호변이성 현상을 갖는 크라운 에테르의 합성과 그의 형광 특성

정광보(Kwang Bo Chung),장승현(Seung Hyun Chang) 한국화상학회 2000 한국화상학회지 Vol.6 No.2

New luminescent crown ethers(1-3) were synthesized. N-(4`-benzo-15-crown-5)-2-hydroxybenzene-1-imine (1) were prepared by reaction of 4`-aminobenfo-lS-crown-5 and 2-hydmxybenzaldehyde. N-(4`-berHo-15-cmwn-5) -2-hydrufraphthalene-1-imine and N-(4`-benzo-18-crown-6)-2-hydroxynaphthalene-1-imine (2, 3) were made by the reaction of 4`-aminobenzo-lS-crown-5, 4`-aminobenzo-18-crown-6 and 2-hydroxy-1-naphthaldehyde, respectively. Luminescence was increased by adding alkali metal ions. Luminescent 15-crown-5 render fluroscence emission intensity responsive to added Na^+ and, to a lesser extent, K^+.

이미다졸 및 피리딘을 포함하는 크라운 에테르의 합성 ( 2 )

정광보(Kwang Bo Chung),김창진(Chang Jin Kim),장승현(Seung Hyun Chang) 한국화상학회 2000 한국화상학회지 Vol.6 No.1

New crown ethers containing pyridine and imidazole (1-6) were synthesized. N-(4`-benzo-crown ethers)-4-pyridineimine (1, 2) were obitained from the reaction of 4`-aminobenfo-crown ethers and 4-pyridinecarboxaldehyde. N-(4`-benzo-crown ethers)-3-pyridineimine (3, 4) were prepared from the reaction of 4`-aminobenzo-crown ethers and 3-pyridinecarboxaldehyde. N-(4`-benfo-crown ethers)-2-pyridineimidazole 5, 6 were synthesized by the reaction of 4`-aminobenzo-crown ethers and 2-imidazolecarboxaldehyde. The synthesized crown ethers were characterized by IR, NMR, and GC-Mass, respectively.

고분자 물질로 지지된 크라운 에테르류(II) 상이동 촉매 효능

심재후,정광보,장승현,송대경,성용길,Jae Hu Shim,Kwang Bo Chung,Seung Hyun Chang,Dae Kyung Song,Yong Kiel Sung 대한화학회 1988 대한화학회지 Vol.32 No.6

크라운 에테르를 반복 사용 기능의 상이동 촉매(phase transfer catalyst ; PTC)로 유도하기 위해 고분자 물질로 지지된 크라운 에테르(polymer-supported crown ether ; Ps-CE)류를 합성하고, 이들 Ps-CE(solid phase)를 이용하여 액-고-액 3상 불균일계에서의 1-bromooctane(유기층)의 iodide(수용층) 친핵 치환 반응속도를 측정하고 그 상이동 촉매능을 연구검토하였다. Ps-CE류는 hydroxymethyl기를 지니는 크라운 에테르류를 합성한 후 이를 1∼2% cross-linked chloromethylated polystyrene 에그라프트시켜 제조하였다. 3상 불균일계치환반응은 반응기질의 농도에 의존하는 유사 일차반응이었고 반응속도상수$(k_{obsd})$는 사용한 촉매량에 비례하였으며, 가교밀도, 온도, 용매 등에 영향을 받음을 알 수 있었다. Ps-CE의 촉매능을 구조적으로 유사한 가용성 크라운 에테르의 촉매능과 비교하였으며, 반응 후 단순히 여과분리하고 이를 PTC로서 반복사용하였을때 촉매능의 감소없이 재사용이 가능함을 알 수 있었다. 반응의 활성화 엔탈피 및 엔트로피는 각각 10∼20kcal $mol^{-1}, 20~55eu.이었고 활성화 자유 에너지는 ∼30kcal mol^{-1}$,이었다. Polymer-supported crown ethers (Ps-CE) which can be used for phase-transfer catalyst (PTC) were synthesized for the purpose of allowing reusable function to ordinary crown ethers, and the kinetics of the liquid-solid-liquid triphase-catalyzed nucleophilic displacement reaction of iodide (aqueous phase) on 1-bromooctane (organic phase) using synthesized Ps-CE (solid) were studied. Ps-CE were obtained by grafting of hydroxymethyl crown ethers to 1~2% cross-linked chloromethylated polystyrene. All reactions followed a pseudo-first order dependency on the 1-bromooctane concentration and the observed rate constants $(k_{obsd})$ were linearly related to the molar equivalents of Ps-CE, and were subjected to the influence of cross-linking density of polymer backbone, solvent and the reaction temperature. The catalytic activity of Ps-CE was also compared with that of structurally similar soluble crown ethers, and used Ps-CE were easily recovered after the reaction by simple filtration and could be reused without loss of catalytic activity in the same anionic displacement reaction. Enthalpies and entropies of activation associated with the displacement were 10~20kcal $mol^{-1}, 20~55eu. respectively, and the free energy of activation was ~30kcal mol^{-1}$.

새로운 비스-크라운 에테르의 합성(제 2보) : 실옥산 사슬에 연결된 비스-크라운 에테르

장승현,김재용,정광보,Chang, Seung Hyun,Kim, Jae Yong,Chung, Kwang Bo 대한화학회 1996 대한화학회지 Vol.40 No.9

실옥산 사슬에 크라운 에테르가 연결된 유연성이 큰 새로운 비스-크라운 에테르를 합성하였다. 1, 3-Bis(trimethylsiloxy)-1, 3-dimethyl-1, 3-di(4'-ethylbenz-o-18-crown-6) disiloxane(1)은 백금촉매 존재하에서 1, 3-bis(trimethylsiloxy)-1, 3-dimethyl-1, 3-disiloxane과 4'-vinylbenzo-18-crown-6의 반응에 의해 합성하였다. New bis-crown ether containing siloxane chain was synthesized. 1,3-Bis(trimethylsiloxy)-1,3-dimethyl-1,3-di(4'-ethylbenzo-18-crown-6) disiloxane (1) was synthesized by reaction of 4'-vinylbenzo-18-crown-6 with 1,3-bis(trimethylsiloxy)-1,3-dimethyl-1,3-disiloxane in the presence of Pt catalyst. 4'-Vinylbenzo-18-crown-6 was prepared through five-step reaction which started from the reaction of catechol and acetic anhydride.

벤조티아졸기를 갖는 새로운 크라운 에테르의 합성

장승현,연애숙,정광보,Chang, Seung-Hyun,Yeon, Ae-Sook,Chung, Kwang-Bo 대한화학회 1996 대한화학회지 Vol.40 No.2

Crown 고리 근방에 질소, 황원자 를 포함하는 새로운2종의 crown ether를 합성하였다. 4'-Benzothiazolylbenzo-12-crown-4 (1) 4'-Benzothiazolylbenzo-15-crown-5 (2)는 각각 4'-formylbenzo-12-crown-4 (3)및4'-formylbenzo-15-crown-5 (4)와 2-aminothiophenol과의 반응에 의해 합성하였다. (3)과(4)는 3, 4-dihydroxybenzaidehyde와 tri-및 tetraethyleneglycolditosylate와의 반응에 의해 합성하였다. Triethyleneglycolditosylate와 tetraethyleneglycol ditosylate는 NaOH 존재하에서 triethyleneglycol, tetraethyyleneglyco.과 p-toluenesulfonyl chloride의 반응에 의해 합성하였다. Two new crown ethers containing nitrogen and sulfur atoms adjacent to the crown rings were prepared. 4'-Benzothiazolylbenzo-12-crown-4 (1) or 4'-benzothiazolylbenzo-15-crown-5 (2) were synthesized by reaction of 2-aminothiophenol with 4'-formylbenzo-12-crown-4 (3) or 4'-formylbenzo-15-crown-5 (4) respectively. (3) and (4) were obtained by reaction of 3, 4-dihydroxybenzaldehyde with tri- or tetraethyleneglycol ditosylate. Triethyleneglycol ditosylate or tetraethyleneglycol ditosylate were synthesized by reaction of p-toluenesulfonylchloride with triethyleneglycol or tetraethyleneglycol in the presence of sodium hydroxide.

유입하수에 따른 BNR에서의 N과 P 제거율에 관한 연구

이한섭(Han-Seob Lee),정광보(Kwang-Bo Chung),안성환(Sung-Hwan, Ahn),김경호(Kyung-Ho Kim),원성권(Sung-kwon Won) 한국유화학회 2014 한국응용과학기술학회지 Vol.31 No.4

The amount of waste water generated from the domestic sources is consistently increasing in proportion to economic growth, and the conventional activated sludge process is widely being used for general waste water treatment. But the ministry of environment becomes stringthent treatment standards of N and P (less than 20㎎/L of N, 2㎎/L of P) to prevent the eutrophication of lake water, and therefore highly advanced treatment technology is required not only in the existing treatment plants where the activated sludge process is being used, but also in newly constructed treatment plants for the treatment of N and P. This study is aimed at highly operating the engineering technology method was developed by domestic to eliminate N and P at the same time. Experiments were conducted in the treatment plant located in Yong In city. The bioreactor was started from the principal equipment for the elimination of N and P and the elimination of organic compounds. It consists of an internal recycle piping from the end of the aerobic tank to the anoxic tank and external recycle piping from the final settling basin to the denitrification tank. By experiment of 4 types separate inflow of waste water to the denitrification tank and the anaerobic tank, and changes in staying time at the anoxic tank and the aerobic tank, the elimination of organic compounds in each type and the relationship in the efficiency between the elimination of N and P were researched.

6. Lariat Azacrown Ether 의 상간이동촉매 활성

심재후(Jae Hu Shim),정광보(Kwang Bo Chung),마사오 도모이(Masao Tomoi) 한국고분자학회 1992 폴리머 Vol.16 No.3