고무용 azo 계 착색제에 관한 연구 : H - 산의 Coupling 반응에 관한 속도론적 고찰 Kinetics of the Coupling reaction of H - acid

박흥조 한국고무학회 1977 엘라스토머 및 콤포지트 Vol.12 No.1

The kinetics of azo-coupling reaction of N-acetyl-H-acid (1-acetamino-8-hydroxynaphthalene-3, 6-disulfonic acid) with several heterocyclic diazonium compounds such as diazotiged 3-aminopyridine, 3-aminoquinoline, 8-aminoquinoline and aniline was studied. It was found that reactions proceeded at remarkably different rate. Reaction rate was in increasing order; 3-aminopyridine, 3-aminoqninoline, 8-aminoquinoline and aniline. And the activation energies were 9.62, 10.10, 10.39, 10.70 Kcal/mole, respectively. Especially, the rate constant of 3-aminopyridine was 100 times larger than that of benzene diazonium compound even in strong acidity. Hammett plot was also made of the rate constants obtained against the heterocyclic substituent constants reported in the literature. A good linear relationship was obtained and the reaction constant of N-acetyl H-acid was calculated to be 3.14.

Phenanthrol 유도체의 Azo-coupling 반응에 關한 硏究

朴興助 忠州大學校 1981 한국교통대학교 논문집 Vol.14 No.2

The Orientation in the reaction of 1-phenanthrol and 4-phenanthrol with benzene diazonium salt have been investigated in warious organic solvents. It has been found that the ortho ; para ratios in protic solvents were smaller than those in aprotic solvents. The results of solvent effects in this reaction were interpreted to be the influence on the reactivities of the phenanthrol derivertives by solvation difference toward the phenanthrolate ion theory.

工業專門大學 化學工學科 敎育課程開發에 關한 硏究

金元基,朴興助 충주대학교 1983 한국교통대학교 논문집 Vol.16 No.1

Today technical junior college which is established to train the backbone technicians has an extremely important mission of education on with the rapid development of modern industrial techniques. Accordingly every technical junior college is sparing its labor to cope with this trend in many ways by performing the vocational education suited to the needs of time in which each department concerned is the pricipal axis. In the case of chemical industrial fild especially, with its characteristic of requiring more comprehensive basic knowledge and various professional informations than any other field, it is concluded that the conservative/traditional education method will not be good for training the technical nucleus man-power suited to chemical factories. Consequently, we get to develop the curriculum of the department of chemical industry as a part of nonfacilities investment of the fifthe IBRD loan project. We provide the results of this research as follows : 1. By a results of examining the existing curriculums of department of chemical industry synthetically, we concluded that it should be led to highly efficient curriculum by reducing the subjects decisively for two years duration is not long enough to deal with all the subjects and there is a possibility that we can not professionalize with excessive program. 2. The result of minute analyzing the basic learning ability of students shows that they are deficient in basic attainments to learn the professional chemical industry. So the existing curriculum must be adjusted to proportionate to their basic learning ability. 3. The result of students comprehension check-up on the contents they are learning proves that the contents of learning are too difficult for the students and there are so many subjects to learn that we can not expect the thorogh effect of learning. 4. By investigation into the subjects related to graduates performing their duties we deleted the unnecessary parts of the existing curriculum and reflected the improved program. 5. We have extracted the results of job analysis and job task analysis concerned with industrial field from the industrial spots and reflected the best related subjects to the new curriculum. As the curriculum department of chemical industy is devided into two different professional education program to chemical analyzing technology field and chemical industrial technology field. A) In chemical analyzing technology field we introduced the Chemical Technology Curriculum Project which is technicians, and we attempted to approach it to our actual circumstances in a modified form. B) We have sharply revised the existing curriculum to reduce the subjects for the education of chemical industrial technology field and put emphasis on the basic knowledge in consideration of the students basic attainments. Naturally we tried to cultivate the comprehension and application ability on the basis of basic knowledge. C) We arranged this program to suit to the result of job analysis and also considered the existing second-rate engineer examination system.

콜라겐 산분해물의 환원반응과 아미노 알콜 N-아실화 유도체의 합성에 관한 연구

박흥조 忠州大學校 2004 한국교통대학교 논문집 Vol.39 No.2

In this study we obtained various mixed amino acids by acid cleavation of AT collagen. We synthesized aminoalchol by the reduction of mixed amino acids into LAH and N-acyl derivatives and its ester compounds of aminoalchol are synthesized and used as raw materials for cosmetics. As a characterization the traditional skin contact test was carried out and observed that more than 90% of the test were resonably safe.

Azocoupling 反應에 關한 硏究 : Heterocyclic diazonium 화합물의 N-acetyle-H-acid 와의 Coupling

朴興助 忠州大學校 1977 한국교통대학교 논문집 Vol.10 No.2

검수 수정 The kinetics of azo-coupling reaction of N-acetyl-H-acid (1-acetamino-8-hydroxynaphtal-ene-3,6-disulfonic acid) with several heterocyclic diazonium compounds such as diazotized 3-aminopyridine, 3-aminoquinoline, 8-amino-quinoline and aniline was studied. It was found that reactions proceeded at remarkbly different rate. Reaction rate was in incressing order ; 3-aminopyrine, 3-aminoquinoline, 8-aminoquinoline and aniline. and the activation energy was calculated 9.62, 10.10, 10.39, 10.70 ㎉/mole. Especially, the rate contant of N-acetyl - H - acid was calculated to be 3.14.

축부제의 2-amino-2'-hydroxy-1. 1'-binaphthy1 화합물의 부제합성에 관한 연구

朴興助 忠州大學校 1995 한국교통대학교 논문집 Vol.30 No.2

By cross-couping, optical active 2-amino-2'-hydroxy-1, 1'-binaphthyl(AHBN) was preparde on 2-naphthol and 2-naphthylamine under controlled conditions, using a various optical active amins-CuCl₂complex in 2-propanol. It was found that this reaction can produce both enantiomers in case of active 1-naphthylamin and 1-phenylethmine, absolute configuration was R for. total chemical yield was 86% above, especially optical selectivity of AHBN is excellent more 1-phenyl ethyl amine than 1-naphthylethylmine and others active aliphatic amine.

NADH 모델 화합물을 이용한 Cinamaldehyde의 선택적 환원 반응에 관한 연구

朴興助 충주대 산업과학기술연구소 1999 産業科學論文集 Vol.7 No.2

The selective olefin reduction reaction of α, β -unsatuated carbonyl compound under Hantzch ester derivatives or Rhodium complex compound has been studied with various method. In this investig ation , the model compound, 3,5- dicarboethoxy-2, 6-dimethyl-1, 4-dihydro pyridine (HTE), as Hantzsch ester and tris(triphenyl phosphine) palladium(Pd(PPh3)3) as co-catalyst was synthesized. The selective reduction of cinamaldehyde under HTE and acetic acid derivatives was not observed except trifluoroacetic acid(CF3COOH), which may be due to fluoride effect. In case of using Pd(PPh3)3 in order to enhance trifluoroacetic acid effect, the reaction yield is increased two times.

카이랄 페닐글라이신 유도체를 이용한 HPLC용 실리카계 부제담체의 합성

박흥조 忠州大學校 2002 한국교통대학교 논문집 Vol.37 No.2

We synthesized the CSP column material of HPLC which is binded with the aminopropyl silica component and chiral 3,5-dinitrobenzoylphenylglycin. The physical and chemical properties of synthetic products agree with the previous results. The synthesized CSP packing material are packed on the empty HPLC column material to separate (R,S)-1,1'-dihydroxy-2,2'-binaphthalene. The optical yield and the separation coefficient of the synthesized packing material of HPLC under mixture solvent (n-hexane/10%-isopropylalcohol) was 99.89% and 1.14, respectively.

Acryl섬유와 염기성 염료와의 염색반응속도에 관한 연구

朴興助 忠州大學校 1987 한국교통대학교 논문집 Vol.20 No.2

The effect of physical properties which is second order transition temperature and number of anionic groups of DR, ER and CR acryl fibers on the dyeing kinetice was studied. We found that dyeing rate constants on the cationic dye with various acryl fibers depend more on the second order transition temperature than on the number of anionic groups, lower treansition temperature and higher contents of anionic groups increased the dyeing rate. On the other hand, activation energy by Arrhenius law increased from a lower to a higher level in the order ER, DR and ER Acryl fibers.

Pyrroles 화합물의 azo-coupling 반응에 관한 연구

박흥조 忠州大學校 1982 한국교통대학교 논문집 Vol.15 No.2

The kinetices of azo-coupling reaction for pyrrole compound with several substitution benzene diazonium salt have been studied. In the case pyrrole it was found, from the apparent first order rate constant an various PH range, that the undissociated pyrrole reacted with diazonium salts in the PH range from 4.7 to 8.2. The reactivity of the pyrrole anion was higher by a factor of 8 powers of ten than that of the undissociate pyrrole. Especially, the rate constant of pyrrole with substitution benzene diazonium salt was about 10 times larger then that of benzene diazonium salt with β-naphthol as a coupling component.