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α, β-tetra(phenoxy, 2-naphthoxy, 4-tritylphenoxy) Oxovanadium 프탈로시아닌 유도체의 합성 및 특성에 관한 연구
손대희 ( Dae Hee Son ),허진 ( Jin Heo ),김송혁 ( Song Hyuk Kim ),이승호 ( Seung Ho Lee ),이근대 ( Gun Dae Lee ),홍성수 ( Seong Soo Hong ),박성수 ( Seong Soo Park ) 한국공업화학회 2010 공업화학 Vol.21 No.6
본 연구에서는 벤젠고리의 a와 β·위치에 phenoxy, 2-naphthoxy 또는 4-trityl phenoxy 치환기가 도입된 프탈로니트릴 유도체들을 합성하였고, 이들 중간체들을 이용하여 전자 주게 특성을 가지는 치환기가 도입된 oxovanadium phthaloeyanine (YOPc) 유도체들을 성공적으로 합성하였다. 시료들의 구조 특성 및 분자량은 (1)H-NMR, FT-IR 및 MALDI-TOF형 질량분석기률 이용하여 측정·분석하였고, 광학적 및 화학적 특성은 UV-Vis 분광기, X-ray 회절기 및 열분석기를 이용하여 측정·분석하였다. 합성된 VOPc 유도체들의 최대흡수파장 값은 약 684~726 nm이었으며, 치환기의 도입으로 말미암아 용해도가 향상되거나 Q 밴드가 이동하였다. After phthalonitrile derivatives were synthesized by the introduction of phenoxy, 2-naphthoxy or 4-trityl phenoxy group on α-and β-position, oxovanadyl phthalocyanine (VOPc) derivatives containing electron-rich substituent group at different position were synthesized successfully in this investigation. The chemical structure of samples was determined by the means of (1)H-NMR, MALDI-TOF mass spectroscopy, and FT-IR spectrometer. Also, optical and chemical properties were determined by the means of UV-Vis spectrometer, X-ray diffractometry, and thermo gravimetry. It was found that the maximum absorbing wavelength of VOPc derivatives ranged from 684 to 726 nm. Also, their solubility and Q-band were enhanced and shifted by the introduction of substitute group, respectively.
졸-겔 법에 의한 콜로이드 실리카와 유기 실란을 이용한 하드코팅 용액의 제조 및 특성
손대희 ( Dae Hee Son ),이윤이 ( Yun Yi Lee ),김성진 ( Seong Jin Kim ),홍성수 ( Seong Soo Hong ),이근대 ( Gun Dae Lee ),박성수 ( Seong Soo Park ) 한국공업화학회 2011 공업화학 Vol.22 No.6
졸-겔 공정을 활용하여 유무기 하이브리드 형태의 투명 필름용 하드코팅층에 사용되는 코팅졸을 제작하였다. 콜로이드 실리카와 알콕시 실란{vinyltrimethoxy silane: (VTMS)와 [3-(methacryloyloxy)] propyltrimethoxysilane: (MAPTMS)}을 이용하였고 다양한 조건에 따라 실험을 실시하였다. 이 졸은 PMMA와 교반하여 PET필름에 코팅막을 형성하였다. 코팅막에 대한 특성은 여러 가지 측정에 의해 확인하였다. 코팅막은 PMMA 단독에 비해서 유기실란 양이 첨부된 형태에서 코팅막의 연필경도와 기재와의 부착력이 우수하였고 실험된 조건에서 시란의 양이 증가할수록 연필경도가 증가하는 경향이 나타났다. Organic-inorganic hybrid coating solutions were prepared by using a sol-gel method for transparent film. In this study, colloidal silica (CS) and alkoxy silane such as vinyltrimethoxysilane (VTMS), and [3-(methacryloyloxy)]propyltri methoxy silane (MAPTMS) were used in various conditions such as types of organic silane, weight ratios of CS to silane and reaction times. Coating solutions which were bar coated on the PET (polyethyleneterephthalate) film and cured were investigated on the chemical and physical properties. The pencil hardness and adhesion of coating films were increased with increasing the organic silane content in the coating solution compared to that of PMMA (polymethamethylcrylate) coating solution.
손대희 ( Dae Hee Son ),정윤철 ( Yun Chul Chung ),신정훈 ( Jeong Hoon Shin ),정진영 ( Jin Young Jung ),안대희 ( Dae Hee Ahn ) 한국물환경학회 2004 한국물환경학회지 Vol.20 No.3
The sewages produced from small villages, rural community, drinking water reservation area and park which doesn`t have sewage piping system can be caused a serious water pollution at the restricted areas. The objective of this research was to suggest an economical and effective sewage treatment method by investigating the removal of the organics, nitrogen, and phosphorus in the multi-soil-layering reactor. Soil, natural zeolite, and iron slag were used as a supporting media of multi-soil-layering in this research. The purpose of natural zeolite addition was to maintain the consistent ammonium exchange capacity by providing a sequential environment, and that of iron slag addition was to remove phosphorus by adsorption. Continuous experiment of lab-scale single-soil-layering (S-1), multi-soil-layering (S-2), and mixed-soil-layering (S-3) methods were studied to compare and optimize three different types of the reactors. The organic removal efficiencies showed more than 90% in all three reactors. While S-1 and S-3 reactors showed about T-N removal of 31%, 45%, respectively, the average T-N removal efficiency of the S-2 reactor represented an 87%. In conclusion, that results suggest that the multi-soil-layering reactor could be effectively utilized as a plant for treatment of small village sewage.
금속이 도핑된 BiVO<sub>4</sub> 분말의 수열 합성 및 이의 열 변색 특성
우관주,손대희,진영읍,이근대,박성수,Wu, Guan Zhu,Son, Dae Hee,Jin, Young Eup,Lee, Gun-Dae,Park, Seong Soo 한국공업화학회 2015 공업화학 Vol.26 No.6
본 연구에서는 열 변색 물질로 알려진 순수한 $BiVO_4$ 분말과 금속이 도핑된 $M-BiVO_4$ (M = Mg, Cu) 분말들을 bismuth nitrate ($Bi(NO_3)_3$)와 ammonium vanadate ($NH_4VO_3$)의 혼합 수용액으로부터 고압반응기에서 수열 합성법을 통하여 성공적으로 제조하였다. 시료들의 결정구조, 미세구조 및 열 변색 특성들은 FE-SEM, FT-IR, XRD, DSC, UV-Vis-NIR 분광기 및 colorimeter를 이용하여 분석하였다. 시료를 상전이 온도 이상으로 가열시키면, 순수한 $BiVO_4$ 시료에 비하여 $M-BiVO_4$ (M = Mg, Cu) 시료의 색상이 상대적으로 선명하게 열 변색하였다. In this study, pure $BiVO_4$ powder and metal-doped $M-BiVO_4$ (M = Mg, Cu) powder, well known as thermochromic materials, were prepared from a mixed aqueous solution of bismuth nitrate ($Bi(NO_3)_3$) and ammonium vanadate ($NH_4VO_3$) in autoclave by hydrothermal method. The crystal structure, microstructure, and thermochromic property of samples were analyzed using FE-SEM, FT-IR, XRD, DSC, UV-Vis-NIR spectroscopy and colorimeter. When heating samples above phase transition temperature, the color of $M-BiVO_4$ (M = Mg, Cu) sample was thermally changed more clearly than that of using only pure $BiVO_4$ sample.