폴리에스테르 纖維에 대한 스티렌, 아크릴산 단량체 그라프트 重合의 動力學的 考察

全東源,吳賢理,兪惠子 梨花女子大學校 韓國生活科學硏究院 1986 韓國生活科學硏究院 論叢 Vol.38 No.-

단량체농도, 개시제농도, 그라프트반응시간, 반응온도등의 그라프트중합 조건을 변화시켜 가면서 poly (ethylene terephthalate) 필름에 styrene과 acrylid acid(AA)를 각각 그라프트중합시켰다. styrene단량체의 중합에서는 0.5×10^-2M/L~20×10^-2M/L의 농도범위에서는 그라프트중합속도가 styrene의 농도에 비례하지만 그 이상의 농도에서는 그라프트중합속도 R_p는 R_p=styrene^(0.4~0.45)로 표시된다. AA의 경우는 상당한 지연시간이 존재하지만 일단중합이 개시되면 중합속도는 styrene에 비해서 크다. styrene과 AA 전부에서 일정한 개시제농도 범위까지는 그라프트중합속도가 상승되지만 그 이상의 농도에서는 그라프트중합속도가 저하된다. Graft polymerization of acrylic acid (AA) and styrene on poly (ethylene terephthalate) <PET> film using benzoylperoxide <BPO> as initiator wasinvestigated under different conditions including monomer concentration, initiator concentration, graft polymerization temperature and time. With styrene, the rate of graft polymerization increases linearly as the concentration of styrene increase in the range of 5×10^-2M/L~20×10^-2M/L. The rate, however, is proportional to the 0.4~0.5 power of the styrene concentration above 20×10^-2M /L. With AA, there is a retardation period before the polymerization starts. Once the reaction is initiated, however, the rate of polymerization becomes faster than that with styrene. In both cases, the rates increase as the concentrations increase until certain points and the, they decrease thereafter.

키토산으로 처리된 알칼리 감량 PET의 코치닐 천연염색

전동원 이화여자대학교 생활환경대학 인간생활환경연구소 2004 인간생활환경연구소 논집 Vol.- No.2

It has been known that dyeing of synthetic fibers is difficult using natural dyestuffs. Especially, It is difficult to dye PET fiber using even the synthetic dyestuffs due to the fact that it does not have sites, which have affinity toward dye molecules, inside the PET molecular structure, and that it has high crystauinity. In this study, it was attempted to improve the dyeing properties toward cochineal dyestuffs by introducing hydrophilic COOH groups, after 5% NaOH solution treatment of the PET fabric. PET fabric samples were pre-treated with chitosan in order to investigate the effect of chitosan on the cochineal dyeing.

A Study on Export Promotion Strategy of K-Beauty Korean Wave Products: Focused on Cosmetic

Jeon,Dong-Han,Lee,Pyoung-Soo,Seo,Yong-Won 한국유통과학회 2019 KODISA ICBE (International Conference on Business Vol.2019 No.-

This study aims to inquire into strategies for promoting export by investigating the real Korean Wave products of K-Beauty through approaching closer to the formation process of Korean Wave and Korean Wave products. In the first place, this study chose classification method of Korean Wave products from K-Beauty products by examining and reviewing general situations and various factors of Korean Wave. After this process, this study inquired into the strategies for promoting export of K-Beauty products. In the last place, the implications of the study were clarified. The items which benefited most from Korean Wave by the recent Korean Wave fever correspond to cosmetics, accessories, women s wear, cellular phones, confectionery, beverages and cigarettes. In addition to K-Beauty, it will be required to expand the area in a more diversified way toward K-Food, K-Health and K-Town, aiming at sustainable development of Korean Wave.

키토산 처리포의 소목 천연염색에 대한 연구 (Ⅰ)

전동원,김종준,강소영 服飾文化學會 2003 服飾文化硏究 Vol.11 No.3

The purpose of this study is to investigate the feasibility of applying the chitosan for a natural modant. The chitosan, a natural chelate macromolecule, is acquired from the crustacean. Investigation was focused on the change of the dyeability according to the chitosan treatment based on the Caesalping sappan and the color change of the dyed fabric according to the application of heavy metal mordant. The change of air permeability of the fabric with the dyeing was also investigated systematically. The effect of dyeing with/without mordant on the air permeability of the fabric after the chitosan treatment. It seems that increase in the dye-uptake is attributable to the fact that chitosan forms a complex with the Caesalpinia sappan and Al during mordant dyeing of cotton fabric. For nylon fabric, the darkest color was achieved on the occasion of non-mordant dyeing of the fabric. The mordant treatment or chitosan treatment, however, reduced the dyeability. While the dyed nylon fabric could maintain the same air permeability as the grey nylon fabric, the cotton fabric lowered the air permeability after dyeing.

Macroreticular Resin의 合成과 그의 Phosphorylation

全東源 梨花女子大學校 韓國生活科學硏究院 1986 韓國生活科學硏究院 論叢 Vol.38 No.-

1980년대에 들어서면서 각광을 받기 시작한 macroreticular type resin의 특성과 그 중합과정을 이론적으로 연구하였다. 중합시 polystyrene의비 non-solvent인 diluent의 양이 증가하거나 고가교가 채택되면 생성된 resin matrix의 건조부피가 상승하였다. 중합시에 diluent로서 solvent-non solvent 혼합액이 사용되면 주로 non-solvent에 의한 영향이 크게 나타나며 solvent에 의한 영향은 미비하였다 macroporous type resin에 비해서 표면적과 porosity는 상승하지만 고분자반응성은 저하된다. 또한 강직한 내부구조 때문에 chloromenthylation시 polymer chain과 polymer chain간의 interaction에서 기인하는 자동가교가 수반되지 않는다. The characteristics and polymerization process of macroreticular type resin which has been in the limelight arriving at 1980 were studied theoretically. In polymerization process, increase of non-solvent as diluent and high cross-linking resulted in the increase of dry volume of produced polymer matrix. When solvent-non solvent mixture was added in polymerization as diluent, the effect of non-solvent appeared mainly, on the other hand, the effect of solvent was trifle. External surface and porosity increased compared with macroporous type resin, but polymeric reactivity decreased. Autocrosslinking due to interaction between polymer chain and polymer chain A,,as not accompanied in chloromethylation because of rigid internal structure.

가교폴리스티렌의 염화벤조일화 高分子反應

全東源,朴景惠 梨花女子大學校 韓國生活科學硏究院 1988 韓國生活科學硏究院 論叢 Vol.41 No.-

가교도가 상이한 고분자 resin matrix의 고분자 반응성을 조사하기 위해서 divinylbenzene (DVB) 가교 polystyrene을 염화벤조일화 시켰다. 반응온도와 polystyrene/p-chlorobenzoylchloride(p-CBC)/AlCl_2의 비율이 염화벤조일화에 미치는 영향이 조사되었다. 가교도가 상승되거나 반응온도가 50℃에서 30℃로 낮아지면 gel type polystyrene에서는 p-CBC의 도입이 크게 감소되지만 macroporous type에서는 p-CBC의 도입이 크게 감소되지 않는다. p-CBC의 초대도입은 polystyrene/p-CBC/AlAl_3의 비율 1/2/0.5(mole ratio)에서 얻어진다. DVB 2%, 5%가교에서 반응개시 6∼10시간만에 최대염소함량에 도달된이후 서서히 염소함량이 저하하고 있어 자동가교의 가능성 배제할 수 없다 Divinylbenzene (DVB)-crosslinked polystyrene of different degree of crosslinking was chlorobenzoylated to examine the reactivity of polymeric reaction. The effect of reaction temperature, and the ratio of polystyrene/p-chlorobenzoylchloride (P-CBC)/AlCl_3 on the chlorobenzoylation was investigated quantitatively. When the degree of crosslinking of crosslinked polystyrene rose or the reaction temperature lowered from 50℃ to 30℃, the introduction of P-CBC decreased greatly in gel type polystyrene, but in the macroporous type, great decrement was not found. Maximum amount of introduced P-BCB could be obtained when the ratio of polystyrene/P-BCB/AlCl_3 was 1/2/0.5 (mole ratio). The fact that the chlorine content attained to the maximum in only 6∼10 hours from the beginning, thereafter decreased slowly in DVB 2%, 5% crosslinking enables to get a idea of autocrosslinking.

폴리메타크릴레이트를 이용한 케토로락 트로메타민 서방성 정제의 제조와 용출평가

전일순,윤재남,이은미,박용근,김동우,이계원,지웅길 충남대학교 약학대학 의약품개발연구소 2003 藥學論文集 Vol.18 No.-

To improve administration of ketolorac tromethamine, we prepared matrix tablets with Eudragit (RS 100 or 30D), diluents (avicel:lactose=l:l or Ca phosphate) and Mg stearate using wet-granulation method. Sustained release matrix tablets using Eudragit® RS 100 7 and 10% decreased dissolution rate at pH 1.2 and 68 Ca. phosphate as diluents showed more decreased dissolution rate than that of avicel:lactose (1:l). Sustained release matrix tablets using Eudragit® RS 30D also showed very effective sustained release of KT.

키토산 처리포의 괴화 천연염색에 관한 연구(Ⅰ)

전동원,김종준,신혜선 服飾文化學會 2003 服飾文化硏究 Vol.11 No.3

Cotton fabric and nylon fabric were chosen as base fabric speciments for dyeing using Japanese pagoda tree colorants through chitosan treatment. With the chitosan treatment, the dye-uptake of the treated fabric increased. This treatment is also expected to be effective in terms of environment-friendliness. The effect of the dyeing methods, mordanting or non-mordanting, and chitosan treatment on the dye-uptake and air permeability of the treated fabrics was investigated. In case of cotton fabric, Al mordanted dyeing resulted in higher dye-uptake through the chitosan treatment. Therefore, the chitosan treatment is effective in this case. Japanese pagoda tree seems to have direct affinity for nylon fibre without the mordanting treatment. In case of cotton fabric, it seems that the cellulose molecules, colorants, and the chitosan make a complex, thereby the air permeability. In case of nylon fabric, due to the fact the Japanese pagoda tree colorant molecules form direct physical bonding with the nylon molecules, it seems that there is not much of air permeability reduction.

Amidoxime Type Chelate Resin의 합성(Ⅰ) : Resin Matrix의 중합과 금속흡착능에 미치는 가교제의 영향 The Effects of Crosslinking Agent on the Polymerization of Resin Matrix and the Adsorption Capacity for Heavy Metal Ions

全東源 梨花女子大學校 韓國生活科學硏究院 1988 韓國生活科學硏究院 論叢 Vol.42 No.-

가교제의 종류와 가교도가 amidoxime type chelate resin의 형성과 금속흡착능에 미치는 영향이 조사되었다. 가교도의 상승은 acrylonitrile 단량체의 중합능등을 저하시킨다. 일반적으로 gel type보다는 macroreticular type resin이 중금속이온에 대해서 뛰어난 흡착능을 지닌다. The effect of the kind of crosslinking agent and the degree of crosslinking on the formation of the amidoxime type chelate resin matrix and its adsorption capacity of heavy metal ions have been investigated. Increase of the degree of crosslinking lowered the polymerization capacity of acrylonitrile monomer. Generally, macroreticular type chelate resin has an excellent adsorption capacity for heavy metal ions compared with the gel type.

폴리에스테르 필름의 그라프트 중합 Ⅲ

全東源,韓英淑 梨花女子大學校 韓國生活科學硏究院 1987 韓國生活科學硏究院 論叢 Vol.39 No.-

BPO를 개시제로 하여 PET필름에 스티렌 또는 스티렌/아크릴산 온합 단량체를 그라프트 공중합 시킬 때 9종의 용매를 물과 혼합하여 첨사시키고 용매의 종류, 용매의 농도, 반응온도 및 반응시간 등의 제반조건이 그라프트 공중합에 미치는 영향을 조사하였다. 용매의 종류와 첨가량에 따라서 그라프트율이 현저히 변화되는데 물만을 매체로 사용했을 때에 비해서 메탄올, 에탄올, 이소프로판올, 아세톤 등에서는 그라프트율이 상승되며 테트라클로로에탄, 클로로포름, 카본테트라클로라이드, 벤젠 벤질 알코올 등에서는 그라프트율이 오히려 저하되는데 물과 용매와의 상용성과 용매의 고유한 유전율이 가장 중요한 원인으로 작용하였다. 물과 용매의 비율이 20/80인 경우 반응온도 80∼85℃, 반응시간 6∼8시간에서 최대 그라프트율을 얻을 수 있었다. The graft polymerization of styrene and styrene/acrylic acid (AA) mixture onto polyethylene terephthalate (PET) films using benzoyl peroxide (BPO) as an initiator was carried out in the presence of various solvent/water mixture instead of the aqueous medium. The effect of solvent, solvent concentration, reaction temperature, and reaction time on grafting were studied. The kind of solvents and solvent concentration influence to the graft yield(%) significantly. Addition of methanol, ethanol, isopropanol, and acetone to the polymerization system increase graft yield as compared to the aqueous medium. But addition of tetrachloroethane, chloroform, carbontetrachloride, benzene, and benzyl alcohol decrease the graft yield. The most important factor that influence to the graft yield was the misci-bility with water and the nature of solvent dielectric constant. The highest graft yield (%) was obtained by in the 20/80, reaction temperature at 80∼85℃, and reaction time for 6∼8 hours.