• 센서학회지
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• 제5권2호
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• pp.55-60
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• 1996

The growth and microwave plasma assisted nitrogen doping of ZnSe by low pressure organometallic vapor phase epitaxy(OMVPE) has been investigated in a vertical downflow reactor equipped with a laser interferometer for in-situ growth rate measurements. Particular emphasis is placed on understanding growth characteristics of $H_{2}Se$ and the new adduct source dimethylzinc:triethyllamine($DMZn:NEt_{3}$) as compared with those obtained with $H_{2}Se$ and DMZn. At lower temperatures ($<300^{\circ}C$) and pressures(<30Torr), growth rates are higher with the adduct source and the surface morphology is improved relative to films synthesized with DMZn. Hall measurements and photoluminescence spectra of the grown films demonstrate that DMZn and $DMZn:NEt_{3}$ produce material with comparable electronic and optical properties. Microwave plasma decomposition of ammonia is investigated as a possible approach to increasing nitrogen incorporation in ZnSe and photoluminescence spectra are compared to those realized with conventional ammonia doping.

• 한국염색가공학회지
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• 제22권4호
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• pp.293-299
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• 2010

A methacrylate monomer having phospholipid polar group and cell membrane structure is known as highly biocompatible. Based on these properties, new biocompatible multi-functional textile finishing agent was developed using phospolipid copolymer. 2-Methacryloyloxyethyl phosphorylcholine (MPCE) was synthesized using 2-hydroxyethyl methacrylate (HEMA), 2-chloro-2-oxo-1,3,2-dioxaphospholane (COP) and triethylamine (TEA), and then polymerized to prepare MPCE copolymer by radical polymerization using azobisisobutyronitrile(AIBN). The structures of MPCE was characterized by FT-IR and 1H NMR and will be evaluated as textile finishing agent in further study.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1996년도 춘계학술대회
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• pp.159-159
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• 1996

6-Substituted exomethylene 기를 갖는 penam계 화합물이 $\beta$-lactamase 억제제로서 강력한 활성을 보여주고 있어서, 6-exomethylene기 도입에 필요한 1-substituted thioalkyl-1,2,3-triazole-4-carboxaldehyde를 합성하였다. Haloalkanol에 NaN$_3$를 반응시켜서 합성한 azidoalkanol과 propargyl alcohol을 산화시킨 propargyl aldehyde를 반응시켜서 1-(2-hydroxyalkyl-1,2,3-triazole-4-carboxaldehyde을 얻었다. 이것을 trifluoromethanesulfonic anhydride와 triethylamine 존재 하에 mercapto 화합물과 반응시켜서 목적물을 합성하였다.

• 한국환경보건학회지
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• 제22권2호
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• pp.19-24
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• 1996

Carbamates are generally used as insecticide, thus 5.7-dichloro-8~hydroxyquinolinyl- N-ethylcarbamate was newly synthesized. Its physical properties were determined and chemical structure was identified by means of I.R., nmr in addition to elemental analysis. The yield of addition, using triethylamine as catalyst, 5.7-dichloro-8-hydroxyquinoline and isocyanate was better than that of condensation of 5.7-dichloro-8-hydroxyquinoline with carbamoylchloride. The effct of the compound on rabbit's ileum, and antibacterial activity against Staphylococcus aureus, Salmonella typhi, Echerichia coli, and Pseudomonas aeruginosa were examined. The present organic synthesized compound showed the bacteriostatic action on salmonella typhi, escherichia coli, and pseudomonas aeruginosa, but no otherwise effect of contraction of rabbit's ileum in the concentration of $250 \mu g/ml$.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1997년도 춘계학술대회
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• pp.70-70
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• 1997

$\beta$-Lactamase 억제제로 6-Substituted exomethylene기를 갖는 penam계 화합물이 강력한 활성을 보여주고 있어서, $\beta$-lactamase억제제의 중간체 합성으로 6-exomethylene기에 도입 할 1-substituted thioalkyl-1,2,3-triazole-4-carboxaldehyde를 합성하였다. 2-Bromoethanol에 NaN$_3$를 반응시켜서 2-Azidoethanol을 합성하였고, 이것을 propargyl aldehyde와 반응시켜서 1-(2-hydroxyethyl)-1,2,3-triazole-4-carboxaldehyde를 합성하였다. 이것을 trifluoromethanesulfonic anhydride와 triethylamine존재 하에 heterocyclic mercapto화합물과 반응시켜서 hetorocyclic ring을 함유한 1-substituted thioalkyl-1,2,3-triazole-4-carboxaldehyde를 합성하였다.

• 분석과학
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• 제14권1호
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• pp.1-7
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• 2001

6,6-Dichlorobicyclo[3, 1, 0]hexane-3carboxylic acid를 phase transfer catalyst(PTC)로 benzyl triethylamine chloride(BTEA.Cl)를 사용하여 3-cyclopentenecarboxylic acid로부터 합성하였다. $^1H$ NMR과 $^{13}C$ NMR 분석을 통하여 이 화합물은 boat-like conformation을 갖는 것으로 나타났고 carboxyl group은 trans로 존재하는 것으로 나타났다.

• 한국응용과학기술학회지
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• 제17권2호
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• pp.76-82
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• 2000

The relative reactivities of branched and linear polycarbonates were investigated by measuring unreacted chloroformate concentration. It was found that the polymerization for the branched polymer proceeded ca. 10 times faster than that for the linear polymers. The effect of catalyst on a condensation step was studied by changing the amount of TEA (triethylamine) at $t_{0}$ and $t_{60}$ with keeping constant amount of TEA. The viscosity average molecular weight for the obtained branched polycarbonates were measured and compared with those of linear polycarbonates. It was found that the viscosity molecular weights of the obtained polymers decreased nonlinearly as wt % of added oligomer increased. The solution viscosities in methylenechloride for linear and branched polycarbonate increased nonlinearly as the content of polymer increased.

• 한국응용과학기술학회지
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• 제13권3호
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• pp.73-81
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• 1996

In this study, sensitizing dye was prepared by the reaction of 2-methyl-3-sulfopropyl-4,5-naphthothiazolium(inner salt) with triethyl orthobenzoate in the presence of triethylamine. The product was identified by using various analytical tools such as elemental analyzer, IR spectrophotometer, UV-Vis spectrophotometer, $^1H-NMR$ spectrometer, TGA and DSC. Therefore, it was concluded that 9-phenyl-3,3'-bis(3-sulfopropyl)-4,5,4',5'-naphthothiazolo carbocyanine triethyl ammonium salt can be used as red-sensitizing dye for the spectral sensitization of photographic emulsion.

• 한국응용과학기술학회지
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• 제23권2호
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• pp.125-129
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• 2006

Benzoxazolo carbocyanine compounds were synthesized by condensation of a suitable ortho-ester with an appropriately substituted 2-methylbenzoxazole in the presence of triethylamine. This compounds used as green sensitizing dyes in photographic emulsions. The compounds are characterized by fast atom bombardment mass spectrometry. The values(m/z) of structurally significant ions observed in FAB spectra. It was showed tentative fragmentation pattern in FAB spectroscopy of $HN(C_2H_5)_3$ cations in glycerol/trifluoroacetic acid matrix.

• Elastomers and Composites
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• 제32권1호
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• pp.11-19
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• 1997

[ ${\gamm}-Glycidoxy$ ] propyl trimethoxy silane, CTBN rubber(carboxyl terminated butadiene acrylonitrile rubber) and GMA(glycidyl methacrylate) were reacted on the surface of silica one by one in existence of TEA(triethylamine) or BPO(benzoyl peroxide). The amount of reactant was $2.5{\sim}5.8%$ of treated silica weight. The treated silica was mixed with epoxy resin and MTHPA(methyl tetrahydro phthalic anhydride) in the range of $0{\sim}60%$(wt.%) of total component. The thermal properties were tested for cured products. By using silica treated with silane/rubber or silane/rubber/vinyl, comparing with 3% of rubber mixed directly, it had 13% higher $T_g$ and 10% lower thermal expansion coefficient at $35{\sim}55%$ of silica contents.