• 한국세라믹학회지
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• 제33권7호
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• pp.755-760
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• 1996

Sol-gel processing was used to prepare PZT fibers. Titanium isopropoxide Zirconium n-butoxide and lead acetate trihydrate were used as starting materials and TEA(triethanolamine) was added to form stabilized Pb-Ti-Zr complex alkoxide, Effects of catalysts and various solvents on the state of precursor sol gelation reaction fiber spinnability pyrolysis and crystallization were also investiated.

• 대한화장품학회지
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• 제14권1호
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• pp.1-15
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• 1988

A new method for liquid chromatography with post column reaction is suggested for the separation and quantification of tertiary amines. A mixture of triethanolamine and N-ethyl diethanolamine was separated by a strong cation exchange column, followed by spectrophtometric detection of the blue colors generated from the reaction of each amine with the Folin-Ciocalteau reagent. The tertiary amines were properly separated when an eluent of pH 9.5 containing 0.5M sodium nitrate was used. Under this condition, calibration curve of triethanolamine in 2-10mg/100ml concentration range was attained. Good results were obtained when cream and shampoo preparations containing known amount of triethanolamine were analysed according to this method. In case the sample did not contain any other interfering reducing substances, the amine was quantitatively determined by the simple reaction of the samples with Folin-Ciocalteau reagent, and the subsequent spectrophotometric measurement.

• Bulletin of the Korean Chemical Society
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• 제25권10호
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• pp.1538-1544
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• 2004

Fragmentations and proton transfer reactions of mono-, di-, and triethanolamines were studied using FTMS. It was found that the most abundant fragment ion was $[M-CH_2OH]^+$. The $[M-CH_2OH-H_2O]^+$ was observed in the mass spectra of diethanolamine and triethanolamine. By increasing the ion trapping time in the ICR cell, the $[M+H]^+$ and $[M+H-H_2O]^+$ ions were notably increased for all the samples while the $[M+H-2H_2O]^+$ was observed in the mass spectra of diethanolamine and triethanolamine. The proton transfer reactions between the fragment ions and neutral molecules occurred predominantly by increasing the ion trapping time. The rate constants for the proton transfer reactions were calculated from experimental results. The proton transfer reaction of $CHO^+$ was the fastest one, which is consistent with the heats of reaction. The rate constants for proton transfer reactions of triethanolamine were much slower than those of ethanolamine and diethanolamine because of the steric hindered structure of triethanolamine. The plausible structures of observed ions and heats of reaction for proton transfer were calculated with AM1 semiempirical method.

• KSTLE International Journal
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• 제2권2호
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• pp.138-141
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• 2001

Tribological behaviors of a borate of triethanolamine in water solution were evaluated using a four-ball wear tester. X-ray photoelectron spectroscopy (XPS) was employed to study tribochemical species on worn scars of steel balls. Results show that a thick deposit layer was produced on the worn scars, which came from the decomposition of the borate. The surface film on the worn scars was mostly consisted with H$_3$BO$_3$, B$_2$O$_3$and large amounts of ferricyanides.

• 약학회지
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• 제23권1호
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• pp.1-6
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• 1979

The authors investigated the biodegradability and toxicity of polyoxyethylene-alkyl citric diester-triethanolamine(PAT), which is one of new non-ionic detergents. 1) The PAT is very biodegradable, which 50% is biodegraded for one day and 100% for eight days by the activated sludge treatment and 40% for one day and 93% for eight days by the aerobic domestic sewage treatment. 2) $LD_{50}$ of PAT for chicken, mouse, and rat by oral adminstration are 7.1g/kg, 8.4g/kg and 14.0g/kg reactively. 3) $TL_{m}$ of PAT for goldfish is 64.0mg/l in 24bours. 4) No reaction for humun skin is determined by PAT.

• Bulletin of the Korean Chemical Society
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• 제17권12호
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• pp.1132-1135
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• 1996

N-Substituted anilines react with triethanolamine at 180℃ in the presence of a catalytic amount of tris(triphenylphosphine)ruthenium(Ⅱ) chloride to give the corresponding 1-substituted indoles in good to high yields. Similar treatment of the anilines with N-benzyldiethanolamine or triisopropanolamine in place of triethanolamine also affords the indoles in good yields. An intermolecular alkyl group transfer between anilines and alkanolamines is assumed to be the key step of these reactions.

• 한국응용과학기술학회지
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• 제32권2호
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• pp.275-280
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• 2015

본 연구에서는 스테인리스강을 사용하여 전형적인 3-전극 시스템의 순환전류전압법으로 트리 에탄올아민(TEA) 용액 중에서 전류-전압 곡선을 측정하였다. 스테인리스강은 작업 전극으로, Ag/AgCl 전극은 기준 전극으로, 그리고 백금 선은 상대 전극으로 각각 사용하였고, 그 결과, 트리에탄올아민 용액에서의 스테인리스강의 C-V 특성은 순환전류전압법으로부터 산화전류에 기인한 비가역 공정으로 나타났다. 부식억제제의 확산계수의 효과는 농도 증가에 따라 감소하였다. 그리고 부식억제 효과는 농도 0.5 N의 $NaClO_4$, $2.5{\times}10^{-3}M$ TEA용액에서 가장 컸으며, 1.5 N $NaClO_4$, $1.0{\times}10^{-3}M$ TEA용액에서 가장 낮았다.

• 공업화학
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• 제20권2호
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• pp.140-144
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• 2009

본 연구는 트리에탄올아민형 양이온 계면활성제(TEA-EQ)의 합성과 그 응용에 관한 것으로, 지방산과 트리에탄올아민의 특정 몰비와 반응온도에 따라 트리에탄올형 양이온 계면활성제의 mono, di, tri 구조가 다르게 합성되는 것을 알 수 있었고, 분석은 NMR로 해석하였다. 안정성은 섬유유연제에 적용한 후, 각각 $45^{\circ}C$에서 4개월간 상안정성을 육안으로 확인하였다. 장기안정성은 Tri-TEA-EQ 함량이 증가할수록 감소하였고 Mono-TEA-EQ 함량이 많을수록 증가하였다. 또한 지방산의 종류에 따른 유연력 및 흡수력을 평가하였는데, 포화지방산이 증가할수록 유연력이 증가하고, 불포화지방산이 많을수록 흡수력이 증가하는 현상을 보였다. 유연력 평가는 일반 가정용 수건의 터치감을 이용한 관능평가로 실시하였으며 흡수력은 유연제 처리 후 흡수되는 물의 높이로 측정하였다.

• Bulletin of the Korean Chemical Society
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• 제32권12호
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• pp.4332-4336
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• 2011

The chalcopyrite-type $CuInSe_2$ is a remarkable material for thin film solar cells owing to its electronic structure and optical response. Single-phase sphere-like $CuInSe_2$ nanocrystallite particles were prepared by a facile noninjection method with triethanolamine as the complexing agent and the solvent simultaneously. The period of the reaction was the key to form single-phase $CuInSe_2$ nanocrystals at $240^{\circ}C$. TEM, XRD, XPS, EDX investigations were performed to characterize the morphology and the detailed structure of as-synthesized $CuInSe_2$ nanocrystals. All of the analysis results proved that the synthesized nanocrystals were pure phase and close to the stoichiometric ratio rather than a simple mixture. The band gap of the obtained $CuInSe_2$ nanocrystals was $1.03{\pm}0.03$ eV.

• 한국표면공학회지
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• 제19권2호
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• pp.31-43
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• 1986

The properties of the electroless nickel deposit mainly depends on the pH of the bath, the plating temperature, and the molar ratio of nickel to hypophosphite but they are also affected by its formulation and concentration of complexing and buffering agents. According to changeing the concentration of triethanolamine and boric acid, phosphorous contents, microsturcture, crystalline, hardness and wear resistance of deposits obtained from ammoniacal alkaline bath were investigated by EPMA, differential thermal analyser, X-ray diffractometer and wear tester. The results are as follows; (1) Increasing concentration of triethanolamine in the bath, the deposits is slightly inclined to increase its phosphorous content(3.7% P). (2) In the as-plated state, the deposits are not crystallized state but they are thermally unstable phase, and they are crystallized with precipitating $Ni_3P$ at 400$^{\circ}C$. (3) The deposit containing 2.3% P has higher hardness value in the as plated and heat treated state at below 300$^{\circ}C$ than those of 3.7% phosphorous deposit (1090Hk). But in the case of heat treating at 400$^{\circ}C$, the former has lower hardness value (1000Hk) than the latter and has remarkably Ni(III) orientation by heat treatment. (4) The 3.7% phosphorous deposit heat treated at 400$^{\circ}C$ has better wear resistance than hard chromium plating.