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.

Polystyrene의 염화메틸화(Ⅳ) : Local Concentration이 자동가교에 미치는 영향 The Effect of Local Concentration on the Autocrosslinking

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.-

EGD, BDD 2%가교 polystyrene은 가교도가 낮고 용매에 의한 팽윤율이 커서 염화메틸기의 도입이 용이할 것으로 예상되었으나 그와는 정반대로 5%, 8%, 12%가교 polystyrene에 비해서 염화메틸기의 도입량이 현저히 저하된다. 전보에서는 국부농도효과와 자동가교의 개념을 도입하여 염소함량의 저하를 설명하였다. 염화메틸기의 도입이 어려워지는 이유가 가교도가 낮은 중합체에서 고분자 주쇄간의 상호작용에 의한 자동가교에서 기인된다는 사실을 증명하기 위해서 비교적 저온으로 생각되는 0℃와 20℃에서 EGD, BDD 2%가교 polystyrene을 염화메틸화 시켰다. 염화메틸화의 개시로부터 30분간의 반응을 조사한 결과 EGD, BDD 2%가교에서는 염화메틸화의 개시와 동시에 염화메틸기의 도입과 자동가교가 병행된다는 사실을 확인하였다. 또한 염화메틸화가 이루어진 chloromethylated polystyrene의 염소함량으로부터 자동가교의 수반을 확인하였다. In order to prove that the difficulty in the introduction of chloromethyl group is due to the autocrosslinking through interaction between the polymer chains in low crosslinked resin matrix, EGD, BDD 2% crosslinked polystyrene was chloromethylated at 0℃ and 20℃ which could be considered comparatively low chloromethylating temperatures. As the result of chloromethylation, for half an hour, the introduction of chloromethyl group and autocrosslinking went abreast at the same time with the beginning of chloromethylation. Also from the chlorine content of chloromethylated polystyrene, the accompaniment of autocrosslinking was affirmed.

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.

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.

소프트웨어 품질평가척도의 실시간 처리시스템 적용에 관한 고찰

錢東源 동국대학교 경영관리연구소 1993 經營經濟論叢 Vol.17 No.-

The purpose of this study is to identify specification required in the course of applying S/W quality metrics to real-time processing system. The approach this study took to define S/W quality is summerized as follow ; o S/W quality is based on user's need. This need can broken down three orientations, namely, - product operation. - product revision. - product transition. o S/W quality comprises eleven quality factors grouped according to three orientations. Each of these S/W quality factors describes one facet of quality and is comprised of several S/W quality metrics, of S/W quality criteria as they are sometimes called. S/W quality metrics are only useful in a format that lends itself to the persons jobnamely, management, system analyst and programmer-during requirement definition, design and code phase. This study identifies the different jobs and potential ways of presenting S/W quality metrics to aid decision making, product improvement, and quality control. This study identifies quality characteristics in real-time processing system, namely, o reliability and security o eseiness for maintainability o observance of response time o adaptability o secret protection o eseiness for use Each of these characteristics should be concerned with the different S/W quality factors and criteria. Now, I need to make every effort of the research and the method of quantifing S/W quality factors and criteria and developing computer-aided tools for supporting S/W measurement framework.

전산화에 따른 Software보급

전동원,Jeon, Dong-Won 대한건축사협회 1984 建築士 Vol.1984 No.10

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.

유기계 Chelate Resin에 의한 해수 Uranium 채취

전동원,최선경,홍주석,Jeon, Dong-Won,Choe, Seon-Gyeong,Hong, Ju-Seok 한국섬유공학회 1987 한국섬유공학회지 Vol.24 No.5

대기업 연구개발 인력의 상사와의 경력지향 적합성, 팀과의 풍토 적합성과 직무만족 및 조직몰입의 관계

전동원,이찬 한국직업교육학회 2010 職業 敎育 硏究 Vol.29 No.2

This study aims at investigating the relationships between person-supervisor career orientation fit (in technical orientation, managerial orientation) or person-team climate fit (in autonomy, cooperation, change orientation and tension) and job satisfaction or organizational commitment in human resources of Research and Development (hereafter R&D). Questionnaires were used to collect data, and they consist of the scales of these following items: person (respondent)’s career orientation, supervisor’s career orientation, personally preferred climate, team climate, job satisfaction, organizational commitment, and demographic characteristics. the purposive sampling for the study was performed to 17 companies in top 20 companies in R&D investment amount in 2006. The major results of the study were as follows: ① in all of the 2 types of person and supervisor career orientation concurs in higher score, job satisfaction and organizational commitment went higher. ② in the relationships between the technical orientation fit of person and supervisor and organizational commitment, There was complementary fit. ③ as the managerial orientations of the supervisor and the person become suitable, job satisfaction grew meaningfully high(supplementary fit). ④ in all of the 4 types of person and team climate fit, as the climate of person preference and team concurs in higher score, job satisfaction and organizational commitment went higher. ⑤ in the relationship between person and team cooperation climate fit and organizational commitment, There was complementary fit. 이 연구의 목적은 연구개발(R&D) 인력의 개인-상사 경력지향 적합성(전문가 지향성, 관리자 지향성), 개인-팀 풍토 적합성(자율성, 협동성, 변화지향, 긴장감)과 직무만족, 조직몰입의 관계를 구명함으로써 직업교육의 시사점을 도출하는데 있다. 연구투자비 상위 20개 국내 기업을 대상으로 설문하였으며, 간접(indirect) 방식으로 적합성을 측정하였다. 적합성 판단을 위한 통계적 기법으로 Edwards(1991)가 제시한 다차항회귀분석과 반응표면방법론(response surface methodology)을 사용하였다. 분석 결과, ①개인-상사 경력지향 적합성 모두에서 개인과 상사간의 경력지향성이 일치하는 경우, 높은 수준에서 일치할수록 직무만족, 조직몰입이 증가하였고, ②개인-상사 전문가 지향 적합성과 조직몰입의 관계에서는 보완적합이 나타났으며, ③개인-상사 관리자 지향 적합성과 직무만족의 관계에서는 유사적합이 나타났다. ④개인-팀 풍토 적합성 모두에서 개인이 선호하는 풍토와 팀 풍토가 일치하는 경우, 높은 수준에서 일치할 때 직무만족, 조직몰입이 증가하였으며, ⑤개인-팀 협동성 풍토 적합성과 조직몰입의 관계에서는 보완적합이 나타났다. 연구 결과를 바탕으로 경력지향성과 풍토의 특성을 감안하여 연구개발 인력의 체계적인 관리와 직업교육이 필요함을 제시하였으며, 후속 연구의 필요성이 제안되었다.

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.