• Bulletin of the Korean Chemical Society
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• 제13권1호
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• pp.5-6
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• 1992

• Bulletin of the Korean Chemical Society
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• 제21권2호
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• pp.271-273
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• 2000

• 약학회지
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• 제38권1호
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• pp.38-45
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• 1994

An analytical method using capillary electrophoresis (CE) was developed for quantitation of water soluble vitamin contents in various vitamin products. The method includes the optimization of separation of 11 water soluble vitamins changing the micellar concentration and pH of running buffer, applied voltage and sample preparation. Best resolution was obtained with 25 mM phosphate buffer (pH=8.0) containing 50 mM sodium dodecyl sulphate (SDS) as micellar phase. At optimum condition, water soluble vitamins were determined in orange juice and vitamin products such as vitamin C pulvis, vitamin injection, coated multivitamin tablet. The quantitative analysis of water soluble vitamins with CE was suitable for quality control of pharmaceutical products with sound reproducibility.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2002년도 총회 및 춘계학술발표회
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• pp.334-337
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• 2002

The drinking water industry faces a growing number of difficultiesin the treatment of groundwater for drinking water production. Groundwater sources are frequently contaminated with nitrates and phosphates due to usage of chemical fertilizer In this study, feasibility of micellar enhanced ultrafiltation (MEUF) was investigated to remediate groundwater contaminated with nitrate and phosphate. Ultrafiltration membrane was cellulose acetate with molecular weight cut off (MWCO) 10,000 and celtyl pyridinium chloride (CPC) was used to form pollutant-micelle complex with nitrate and phosphate. The results show that nitrate and phosphate rejections are satisfactory. The removal efficiency of nitrate and phosphate show 80% and 84% in single pollutant system, respectively with 3 molar ratio of CPC to pollutants. In the multi-pollutant systems, the removalefficiency increased to 90 % and 89 % for nitrate and phosphate, respectively, The presence of nitrate in the solutions did not affect the removal of phosphate and that of phosphate did not affect the removal of nitrate. The concentration of CPC in the permeate and removal efficiency of CPC was a function of the concentration of CPC in the feed solutions.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.287.3-288
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• 2002

Previously. we reported a novel polymeric micellar solubilizeI'. Aceporol 330. that showed relatively low toxic effects when it was compared with that of Cremophor EL which is currently being used for paclitaxel. In this study. we have developed a new micellar solubilizeI, Aceporol 460. that has 3-4 times higher loding capacity for paclitaxel than Aceporol 330. The single-dose and the repeated-dose toxicity of Aceporol 460 were evaluated in ICR mice. (omitted)

• 공업화학
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• 제5권1호
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• pp.114-120
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• 1994

DCI (dichlorolsocyanuric acid sodium salt)에 의한 PNPDPP (p-nitrophenyldiphenylphosphate)의 미셀 내에서의 분해 반응을 pH 8.0 borate 완충용액에서 속도론적으로 살펴보았다. 양이온성 계면활성제인 CTAC (cetyltrimethylammonium chloride) 또는 CTAB (cetyltrimethylammonium bromide)를 첨가하면 반응은 빠르게 촉진되었으며, 특히 CTAB의 경우는 DCI의 N-Cl 결합이 N-Br 결합으로 전환되어 반응이 진행되었다.

• Rapid Communication in Photoscience
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• 제4권3호
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• pp.73-75
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• 2015

Cr(VI) reduction was successfully achieved in the presence of cationic micelles (CMs) under visible light illumination. Micelle formation of cationic surfactants seems to be critical in Cr(VI) reduction. Cr(VI) was reduced very fast above the critical micelle concentration (cmc) of CTAB solutions, but was not reduced at all either below or around the cmc of CTAB. The reduction rate of Cr(VI) was enhanced in the absence of dissolved oxygen, supporting that the removal of Cr(VI) should be achieved via a reductive pathway. When CTAB was substituted by Brij 35 or SDS, the reduction of Cr(VI) was negligible. This indicates that the electrostatic interaction between Cr(VI) and headgroups of surfactants is important in the visible light-induced Cr(VI) reduction in micellar solutions.

• Macromolecular Research
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• 제16권1호
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• pp.62-65
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• 2008

The morphology of the $D_2O$-induced reverse micellar structure of an amphiphilic block copolymer of poly( ethylene oxide )-b-poly(propylene oxide )-b-poly( ethylene oxide )($EO_{76}PO_{29}EO_{76}$) was investigated in hydrophobic media by small angle neutron scattering (SANS). Increasing $D_2O$ in the styrene/divinylbenzene solution of $EO_{76}PO_{29}EO_{76}$ led to a change in morphology of the reverse micelles from a short range ordered molecular aggregate to a hexagonally arranged micelle, and further to a spherical micelle.

• Bulletin of the Korean Chemical Society
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• 제24권10호
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• pp.1444-1448
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• 2003

The microsurface adsorption - spectral correction (MSASC) technique has been applied to the interaction of indigo carmine (IC) with cetyltrimethylammonium bromide (CTAB). The aggregation of IC on CTAB obeys Langmuir isothermal adsorption. The results show that both the monomer complex $IC{\cdot}CTAB$ and the micellar complex $(IC{\cdot}CTAB)_{78}$ were formed. The binding constant of the monomer complex was calculated to be $K_{IC{\cdot}CTAB}$ = 2.20 ${\times}10^5L{\cdot}mol^{-1}$, and the molar absorptivity of the micellar complex was calculated to be ${\varepsilon}_{(IC{\cdot}CTAB)78}\;^{560nm}$ = 8.58 ${\times}10^5L{\cdot}mol^{-1}{\cdot}cm^{-1}$. The aggregation was applied to the determination of cationic surfactant in wastewater.

• Bulletin of the Korean Chemical Society
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• 제33권6호
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• pp.2012-2016
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• 2012

A convenient synthetic route has been developed to synthesize 5-(4-((2-phenylthiazol-4-yl) methoxy)phenyl)-3-(4-sustituted phenyl)pyrazolines (5a-f) and 5-(4-((2-phenylthiazol-4-yl)methoxy)phenyl)-3-(4-substituted phenyl)isoxazolines (6a-f) starting from 2-phenyl-4-chloromethylthiazole (1). The chloromethylthiazole (1) was first condensed with 4-hydroxy benzaldehyde (2) for obtaining 4-((2-phenylthiazol-4-yl)methoxy)benzaldehyde (3). Claisen-Smidth condensation of 4-((2-phenylthiazol-4-yl)methoxy)benzaldehyde (3) and acetophenones has been carried in alkaline alcohol and obtained 3-(4-((2-phenylthiazol-4-yl)methoxy)phenyl)-1-(4-substituted phenyl)prop-2-en-1-ones (4a-f). The cyclocondensation of 2-propen-1-ones has been first time carried separately with hydrazine hydrate and hydroxylamine hydrochloride in aqueous micellar tetradecyltrimethylammonium bromide (TTAB) medium for getting the titled heterocycles with good to excellent yields.