- 고분자: 2P-10
광 경화 특성을 갖는 Poly(ethylene glycol)의 분자량에 따른 배향 특성평가
김미리ㆍ성시준*ㆍ조국영† 공주대학교, *대구경북과학기술연구원
Poly(ethylene glycol) (PEG)은 유연성과 친수성 특성을 갖으며, 최근에 PEG 분자에 다 양한 작용기를 도입하여 기능성을 부가한 연구들이 보고되고 있다. 본 연구에서는 광반응 특 성을 갖은 cinnamate를 PEG의 분자량을 변화하며 제조하였다. 제조되어진 광반응성 PEG는 구조 확인, 열적 특성, 광반응 특성을 평가하였으며, 결과로서 PEG의 분자량이 작은 경우 가장 빠른 반응 속도를 나타내었다. Polar plot을 통하여 선편광 조사에 따른 분자 배향성을 확인하였다. 본 연구를 통하여 유연 사슬 구조를 포함하는 분자 배향성, 경화성 재료로 새로 운 광배향막에 적용 가능함을 알 수 있었다.
Keywords: poly(ethylene glycol), Cinnamate, Photo-alignment, Linear polarized UV - 2P-74
Biomass에서 유래된 monomer의 합성과 polyester의 중합
서강진ㆍ김명준ㆍ정용석*ㆍ이영철† 한국생산기술연구원, *충북대학교
지난 몇 년 동안 화석원료의 가격상승 및 수요증가와 화석연료로 만든 화학제품의 가격경 쟁 그리고 제조 공정에서 발생하는 CO2 및 폐기물 등의 문제로 화석원료의 사용을 대체하는 biomass 분야에 대한 연구가 활발히 진행되고 있다.
본 연구는 화석원료를 사용하여 만든 polyester를 대체하기 위한 연구로서 biomass에서 유 래된 화학 원료 물질인 furan-2,5-dicarboxylic acid를 합성하고 합성된 furan-2,5-dicarboxylic acid와 furan-2,5-dimethanol을 monomer로 사용하여 새로운 polyester를 중합하였다. furan- 2,5-dicarboxylic acid는 H1-NMR, C13-NMR, FT-IR을 통하여 구조를 확인하였고 polyester는 H1-NMR, C13-NMR, FT-IR, DSC를 통하여 구조 및 열분석 하였다. 주 : 본 연구는 한국생 산기술연구원의 ‘기관 고유 임무형 연구 사업’ 연구비 지원을 받아 수행되었음.
Keywords: biomass, polyester
2009 추계 학술 발표회 우수논문 발표상 수상자
- 2P-76
THERMAL CONDUCTIVITY FOR METAL OXIDE CONTAINING MODIFIED POLYSILOXANE/
METAL PRATICLE COMPLEX
임현구ㆍ권유미ㆍ김주헌† 중앙대학교 ([email protected]†)
In this paper, the effect of metal oxide coordinated modified polysiloxane was inves- tigated for dispersion of metal filler in the polymer matrix. And appropriated percolation threshold theory was employed to analyze the thermal conductivity behavior of composite as function of filler concentration.The PMDMS composite materials showed more enhanced calculated interconnectivity. Also, thermal diffusivity and conductivity showed much higher than other materials in the literature.
Keywords: polysiloxane, percolation, diffusivity, conductivity - 2P-129
Thermally Reaaranged (TR) Polymer Membranes Prepared via Solution Polymerized Hydroxy Polyimides for Gas Separation
눌아쉬킨ㆍ한상훈ㆍ박호범ㆍ이영무† 한양대학교
Fluorinated hydroxy polyimides (HPI) were prepared by two-step method with either thermal or chemical imidization of poly(amic acid)s. In this study, the acquired HPIs were compared in terms of their solubility, thermal properties and high performance for gas permeability and permselectivity. HPIs prepared by chemical imidization were soluble in common organic solvents but those prepared by thermal imidization were generally in- soluble. HPI films were thermally treated up to 450 ℃ for an hour to make PBO which showed excellent thermal stability than HPIs and excellent performance for gas per- meability.
Keywords: Thermally Rearranged Polymer, Hydroxy Polyimide, Polybenzoxazole
- 나노: 2P-151
분산 안정성 향상을 위한 은 나노 입자 제조
박기선ㆍ김상민ㆍ김기도ㆍ박성대*ㆍ김희택† 한양대학교, *한국전자부품연구원
본 연구에서는 분산 안정성 향상을 위해 다양한 fatty acid를 이용하여 은 나노 입자를 제 조하였다. Octanoic acid, Myristic acid, Palmitic acid, Stearic acid를 각각 AgNO3, NaOH와 반응시켜 가열 및 교반에 의해 생성된 중간체를 여과 및 세척 후 건조하여 Silver-car- boxylate를 합성하였다. 또한 환원용매를 사용하여 은 콜로이드 용액을 제조하였다. 환원 반 응시 반응 온도에 따라 은 나노 입자의 크기를 조절 하였고, Surfactant를 이용하여 분산 안 정성을 향상 시켰다. 은 나노 입자의 특성은 TEM, XRD, UV-vis, DLS, Turbiscan으로 분석 하였다.
Keywords: silver nanoparticles, fatty acid, dispersion, surfactant - 무기재료: 2P-205
Influence of Different Methods on the Morphological Behavior of Magnesium Hydroxide Based Materials
강국현ㆍ이진화*ㆍ이동규† 충북대학교, *충주대학교 ([email protected]†)
형상 조절된 수산화마그네슘은 고분자, 건설재료 및 기능성재료 등의 고기능성 첨가제로 사용되며 반도체 분야 등의 주재료인 산화마그네슘의 원료가 되는 물질이다. 본 연구는 수산 화마그네슘계 생성물질의 합성을 위하여 마그네슘염과 염기성물질 및 산성물질 그리고 계면 활성제 등을 변수로하였고, 합성은 수열합성 및 마이크로웨이브를 사용하였다. 이를 통해 합 성된 생성물은 다양한 형상을 나타내었고, 수산화마그네슘계 생성물임을 확인할 수 있었다.
생성물의 모체의 종류, 양적 비율 및 합성 방법에 따른 형상특성을 알아보고, 각 생성물의 특성을 XRD, SEM, EDS, TG/DTA 및 FT-IR 등을 이용하여 비교하였다.
Keywords: Magnesium hydroxide, hydrothermal, microwave
- 생물공학: 1P-13
Bioinformatics-inspired protein engineering, functional expression and nano-immobilization of Mugil cephalus epoxide hydrolase for asymmetric resolution of racemic epoxides
최성희†ㆍ김희숙 경성대학교 식품생명공학과
The epoxide hydrolase (EH) gene of Mugil cephalus (McEH) was engineered based on bioinformatics. The enantioselective hydrolytic activity was enhanced more than thirty times by site-directed mutagenesis. The mutated gene was efficiently expressed in Es- cherichia coli in the presence of various types of chaperone. The portion of the soluble fraction increased and the hydrolytic activity was further enhanced more than 50% with coexpressing the pGro7 plasmid. The highly active McEH enzyme was efficiently im- mobilized onto nanoparticles anchoring Ni2+ ions.
Keywords: epoxide hydrolase, chaperone, immobilization - 석유화학윤활유: 1P-22
A Novel Method for Preparation of Large-Area Graphene Oxide Films
Liu Feiㆍ서태석†
Department of Chemical and Biomolecular Engineering, KAIST ([email protected]†)
Here, we present a novel and simple approach to fabricate large-area graphene oxide (GO) films using GO colloidal suspensions. The GO solutions prepared by a Hummer’s method are centrifuged under a high vacuum system. During evaporation, GO sheets are assembled by the Langmuir-Blogette mechanism to generate layer-by-layer GO films. The size of GO films is more than 3 × 3 cm, and the thickness can be controlled from 200 nm to 1 µm based on the concentration of GO colloidal suspension and evaporation tem- perature. The prepared GO films exhibit excellent transparency, typical fluorescent emission and strong flexibility with smooth surface and condensed density.
Keywords: layer-by-layer graphene oxide films, vacuum centrifugation
- 전기화학: 2P-241
Study on structural and electrochemical properties of Co3O4 anode material prepared by hydrothermal method
신초롱ㆍ안주현†ㆍManuel Jamesㆍ안효준 경상대학교
Recent research on the anode material for lithium ion battery has been focused on carbonaceous materials and alternative materials like tin oxide, cobalt oxide etc. Car- bonaceous materials has high stability, but low volumetric capacity mainly due to large initial irreversible capacity. There have been many research works carrying on developing new materials with good electrochemical properties. Cobalt oxide belongs to a cubic closely-packed structure of oxide ions and has attracted extra attention due to the broad range of applications such as heterogeneous catalysts, anode materials in Li-ion re- chargeable batteries, solid-state sensors, electrochromic devices, solar energy absorbers, ceramic pigments, and intercalation compounds for energy storage.
Keywords: cobalt oxide, Co3O4, hydrothermal method - 접착제도료잉크: 2P-267
Synthesis and physical properties of glycidyl azide polyol based thermoplastic polyurethane elastomers
유종성ㆍ권정옥ㆍ김형석ㆍ노시태† 한양대학교 화학공학과 ([email protected]†)
Thermoplastic polyurethanes elastomers (TPEs) based on glycidyl azide polyol was syn- thesized for use in new insensitive energetic materials. Glycidyl azide polyol (GAP) and polycaprolactone (PCL) as soft segments and 4,4'-diphenylmethane diisocyanate and chain extender as hard segments were used. The polymerization was carried out in solution by two-step polymerization. Several parameters were modified during the synthesis : the molar mass of GAP, hard segment content. The structure of the TPEs was determined by Infrared spectroscopy. Thermal and mechanical properties were measured by differential scanning calorimetry (DSC) and Dynamic mechanical analyzer (DMA).
Keywords: Glycidyl azide polyol, Polyurethane, Elastomers, DSC, DMA
- 정밀화학: 1P-32
Synthetic Study toward PNTU, a Highly Explosive Material
하태환ㆍ신문용ㆍ전종호*ㆍ김영규†
서울대학교 공과대학 화학생물공학부 정밀화학실험실, *서울대학교 자연대학 화학부 ([email protected]†)
Having high density of atoms compared to the molecular volume, a tricyclic aza- propellane is a highly detonative material. This material seems very strained at first glance but actually it is known to be very stable. Therefore, we wanted to develop a stable but highly explosive material containing the azapropellane structure and we wish to present the preliminary results as follows. PNTU(1,3,4,6,8-pentanitro-1,3,4,6,8-pentaaza-[3,3,3]-tri- cycloundecane) is a novel nitrated tricyclic compound which is expected to act as an explosive. Having high density of atoms compared to the molecular volume, PNTU would be more powerful than previously used explosives.
Keywords: PNTU, explosive - 정보전자소재: 1P-78
Synthesis and Electroluminecene Properties of Fluorene-based White-Emitting Conjugated Polymers
이승민ㆍ송호준ㆍ허수원ㆍ문두경† 건국대학교
최근 White Polymer Light-Emitting Diode (WPLED)는 Liquid-Crystal Display (LCD)의 backlight unit, 조명 등 새로운 기술분야에서 큰 관심을 받고 있다. White light-emitting을 구현하기 위해서 본 연구에서는 blue emitting을 나타내는 fluorene conjugated polymer backbone에 dopant로써 green emitting의 2,1,3-benzothiadiazole을 0.05∼0.1 mmol%의 비율 로 첨가하였고, red emitting의 porphyrin을 0.1∼0.3 mmol% 비율로 첨가하여 Suzuki coupling reaction 방법으로 합성하였다. electroluminecene 특성평가 결과 CIE coordinate는 (0.31, 0.37)로써 purewhite인 (0.33, 0.33)에 가까운 White emitting을 나타냈다.
Keywords: fluorene, porphyrin, conjugated polymer, WOLED
- 촉매: 1P-121
PtPd/Al2O3 디젤 산화촉매의 열화저항성 및 활성 향상을 위한 Fe 첨가 촉매의 제조
김연수ㆍ정용권ㆍ임선주ㆍ박지원*ㆍ이진하*ㆍ이호인†
서울대학교 화학생물공학부 및 에너지 변환/저장 연구센터, *현대기아자동차 환경기술 연구소 ([email protected]†)
디젤 산화촉매로서 널리 사용되는 고가의 Pt/Al2O3 촉매의 열화에 대한 취약점을 보완하 고자 Pd를 혼합해 촉매를 제조하였으나, 초기활성이 높음에도 불구하고 Pd가 SO2의 흡착에 약하여 중반부의 활성이 급격하게 감소하는 특성을 보였다. 따라서 이러한 점을 극복하고자 Fe를 조촉매로서 첨가하였다. Pt, Pd 그리고 Fe의 전구체를 초기함침법으로 알루미나 위에 담지하였다. 전체 귀금속의 담지량은 1 wt%로 하였으며, Pt와 Pd의 질량비는 4:1로 고정하 고 Fe의 담지량을 달리하였다. CO 산화반응을 통하여 활성을 측정하였고, 여러가지 Fe 담지 량 중 2 wt%가 첨가된 촉매가 열화 후에 가장 높은 활성을 보여 T50이 24 ℃ 앞당겨지는 효과를 얻었다. XRD 분석과 TPR 분석을 통하여, Fe의 첨가로 인한 PdO와 Al2(SO4)3의 생 성량 감소를 확인하였다.
Keywords: 디젤 산화촉매, PtPd, Fe, CO 산화반응 - 1P-148
High surface area TiO2-ZrO2 catalysts for the transformation of ethylbenzene into styrene using CO2 as a soft oxidant
Abhishek Burriㆍ강남철ㆍ박상언† 인하대학교 화학과 ([email protected]†)
High surface area TiO2–ZrO2 (1:1, TZ) catalysts have been synthesized by a novel co-precipitation using KOH[1]. TZ catalysts were prepared by 16 and 24 h digestion method and treated at 600 ℃. The TZ-16 aged sample showed a hike in the surface area compared with the conventionally prepared TZ using NH3[2]. The catalytic activity shown by TZ-16 sample on the ethylbenzene dehydrogenation is 65∼70% of conversion and 97%
selectivity at 600 ℃ with a CO2 to ethylbenzene dehydrogenation of 5.1.
Keywords: TiO2-ZrO2 catalysts
- 콜로이드계면화학: 2P-294
Patterning of Polypyrrole Using the Oleophobicity of Perfluoropolyether
권순일*,**ㆍ김형태*ㆍ하종욱***ㆍ고원건*ㆍ이상엽*,**,†
*연세대학교 화공생명공학과, **수소연료전지 특성화 대학원,
***한국화학연구원 바이오리파이너리 연구센터 ([email protected]†)
The florinated polymer has high surface energy such that it is both properties of oleophobicity and hydrophobicity. In this study, these properties of florinated polymer was exploited to make a polypyrrole (PPy) pattern without additional fabrication. A novel florinated polymer, perfluoropolyether (PFPE) was layered on the substrate which was exploited as a capping layer preventing PPy deposition on it due to its oleophobicity. In contrast, PPy layer was selectively deposited on the patterns with carboxyl surface groups.
This approach enabled us to make a conducting polymer pattern in a single step through the chemical deposition method without the conventional way of tape peeling. The outcomes of this study would contribute to the development of process useful to pattern organic materials.
Keywords: Patterning, oleophobicity, polypyrrole, perfluoropolyether - 펄프제지피혁: 2P-304
은행나무잎의 유기충전제로의 가능성 연구
채희재ㆍ박종문†ㆍ최미진ㆍ정진모ㆍ박창순ㆍ임종혁 충북대학교
종이는 주원료인 pulp 외에도 다양한 종류의 충전제 및 각종 chemical로 이루어져 있다.
일반적으로 충전제라 함은 종이의 무게를 올리고 백색도 불투명도를 올리는 용도로 무기충 전제가 이용되어 왔으나 최근에 목분등의 폐잔재를 이용한 유기충전제에 대한 연구가 활발 히 이루어지고 있다. 또한 은행나무잎은 각종성분을 추출하여 혈액 순환 개선재 등 약용으로 많이 이용되고있다. 본 연구에서는 버려지는 자원인 은행나무잎을 건조, 분쇄한 충전제를 보 류제를 이용하여 응집시켜 종이에 첨가 하였다. 이러한 종이의 bulk 및 강도적인 특성을 분 석하여 유기충전제로의 가능성을 분석하였다.
Keywords: 은행나무잎, 유기충전제, bulk, retention, 인장강도
- 화학공정: 1P-173
유채유의 에스테르화 반응에서 반응조건의 최적화
최명수ㆍ박소리ㆍ라주희ㆍ이승범ㆍ이재동† 경원대학교 생명공학부 환경생명공학전공
바이오디젤은 경유 대체연료로 연소 시 대기오염 물질 배출이 적어 친환경적인 재생에너 지원이다. 최근 국내에서는 바이오디젤의 원료로 불포화지방산의 함량이 높아 액화점이 낮 고, 엔진막힘 현상이 적어 유채유를 많이 이용하고 있다. 따라서 본 연구에서는 유채유를 이 용하여 바이오디젤을 제조할 경우 메탄올 양, 염기촉매의 양, 반응온도 등 최적조건을 설정 하고자 하였다. 유채유와 메탄올의 반응몰비는 1:8에서 알칼리촉매의 양은 1 wt%, 반응온도 는 50 ℃에서 가장 높은 methylester content를 얻었다.
Keywords: canola oil, biodiesel, methylester content - 환경에너지: 1P-230
Microwave Destruction of BTX in a Packed Bed Reactor
조혜진*ㆍSameer Pallavkar**ㆍ김태훈**ㆍTomas Ho**ㆍ이진휘*,***,†
*서울산업대학교 화학공학과, **Lamar University, ***친환경소재센터 ([email protected]†)
The destruction of VOCs using microwave in the packed bed was studied so as to determine the effect of microwave energy, optimum microwave power, flow rate and microwave absorbing media. Benzene, Toluene, and Xylene were selected as reactants and SiC and GAC were used as absorbing media. The amount of each reactant was entered into a microwave assisted packed bed reactor including absorbing media and was destructed by high temperature microwave. The higher sensitive GC/MS was used for measuring concentration of destructed outlet gases. The results showed that the efficiency of removing BTX is greater than 99% in the given power range. It was evaluated that application of SiC is more effective because of higher DRE even at lower temperatures and higher flow rates.
Keywords: Microwave, destruction VOC, BTX, GAC, SiC
- 1P-256
연속적인 화학세정을 적용한 침지형 MBR 공정의 운전 성능
김경량ㆍ김선일†ㆍ노성희ㆍ이재욱 조선대학교 생명화학공학과
Three membrane bioreactors (MBRs) were operated to investigated the effect of continuous chemical cleaning on membrane fouling for wastewater treatment at NaOH concentration 0 (control), 0.004, 0.04 N, respectively. The results showed that the cake resistance decreased with the increase of NaOH concentration. However, the fouling resistance was reduced effectively at NaOH concentration of 0.004 N, and this effect weakened significantly at a higher concentration of 0.04 N. Detailed studies on the effect of chemical cleaning indicated that a NaOH concentration of 0.004 N was the optimum in terms of nutrients removal and permeate flux.
Keywords: Membrane Bioreactor (MBR), Chemcal Cleaning, NaOH, TMP - 1P-264
Preparation of zeolitic sorbents from coal fly ash for CO2 capture
이경미ㆍ조영민†ㆍ이주열*
경희대학교, *(주)애니텍 ([email protected]†)
Zeolites are quite a useful sorbent for pollutant abatement due to the presence of porous aluminosilicate compounds which are good in ion exchange capability and catalytic behavior. Coal fly ash has long been attempted to utilize its amorphous aluminosilicates and crystalline compounds. In this study, fly ash from coal power station was used to make zeolitic sorbents for CO2 adsorption through a thermal fusion. An optimum recipe and preparation process focusing on the quality of gas adsorbents was presented. The synthesized sorbents were found to be fair in low level CO2 capture.
Keywords: zeolite, fusion method, carbon dioxide, adsorption
