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 년도별 목차보기 |
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| 발행년도/권호 |
2001 년 / 권호: V.13,no.5,Oct |
| 논문제목1(원어) |
C. I. Disperse Blue 79의 알칼리 가수분해 반응속도 및 반응메카니즘 |
| 논문제목2(타언어) |
Kinetics and Mechanism for Alkaline Hydrolysis of C. I. Disperse Blue 79 |
| 저자(원어) |
박건용 (청운대학교 패션섬유공학과) 박창혁 (청운대학교 패션섬유공학과) 박병기 (전북대학교 섬유공학과) |
| 저자(타언어) |
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| 소속(원어) |
박건용 (청운대학교 패션섬유공학과) 박창혁 (청운대학교 패션섬유공학과) 박병기 (전북대학교 섬유공학과) |
| 소속(타언어) |
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| 시작/끝
페이지 |
312 ~ 319 총페이지 : 8 |
| 언어(원어) |
Korean |
| 초록 |
Kinetics and mechanism for alkaline hydrolysis of C. I. Disperse Blue 79(B-79) which is 4-N, N- diacetoxyethyl -2- acylamino-5-ethos y -2\\\'-bromo-4\\\',6\\\'-dinitroazobenzene were investigated. The color strength of B-79 in acetone/water solutions of various NaOH concentrations decreased continuously. The hydrolysis rate of B-79 increased with increasing alkali concentration and appeared following first order reaction. The observed rate constants for various concentrations of B-79 showed similar values, and B-79 was hydrolyzed by first order reaction for dye concentration. Therefore, it was confirmed that the overall reaction follow second order kinetics and proceed via reaction. From the study on kinetics and spectrometric analysis, it was proposed that the rate determining step of the hydrolysis reaction of B-79 is the nucleophilic substitution reaction - that is the reaction of the rapid attack of OH- on the carbon atom, which is in acceptor ring, adjacent to auto group to break the C-N bond. And it was also found that the final hydrolysis products of B-79 include both the acceptor ring in the form of sodium salt and the donor ring possessing 4-N,N-dihydroxyethyl group converted from 4-N, N-diacetoxyethyl gro |
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