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김용인,소희준,선일식 한국유화학회 1991 한국응용과학기술학회지 Vol.8 No.2
As the result of the qualitative and quantitative analysis of the surfactant mixture, the main surfactant of the fast biodegradable detergent which were derived from vegetable oil was Sodium Lauryl Sulfate. The Detergents contained sodium lauryl sulfate, nonionic surfactant, soap, etc, as the rest sufactants. Linear Alkylbenzene Sulfonate and α-Olefin Sulfonate which were derived from pertoleum were not detected. The biodegradation rate of the detergent prepared from vegetable oil was faster than that of the detergent derived from petroleum stood in 7 days.
비이온성 계면활성제의 합성에 관한 연구(제2보) : Sucrose Monoester 류의 계면활성 Surface Activity of Sucrose Monoester
손주환,남기대,소희준 충북대학교 건설기술연구소 1982 建設技術論文集 Vol.1 No.1
Surface activities and physical properties that surface tension, foaming power, foam stability, dispersion effect, emulsifying power, wettability, penetrating effect, solubilization and critical micelle concentration of sucrose esters such as sucrose monolaurate, sucrose monomyristate, sucrose monopalmitate, sucrose monostearate and sucrose monooleate were determined and evaluated hydrophilic-lipophilic balance. The results show that all the sucrose monoesters are fairly good surface activities and exhibit specially the characteristics of oil in water type emulsifying agent, and values of their cmc are 24.5×10^(-5) 15.8×10^(-5), 10.3×10^(-5), 6.3×10^(-5) and 7.2×10^(-5) mole/ℓ at 25℃, respectively, and their HLB value are a range of 8∼12.
N-acyloxyethylcarboxybetaine 형 양성계면활성제의 합성과 물성에 관한 연구
오양환,김용인,소희준,김병기 한국유화학회 1989 한국응용과학기술학회지 Vol.6 No.1
Five novel amphoteric surfactants of N-acyloxyethylcarboxybetaine series were synthesized via Schotten-Baumman reaction between five acid chlorides containing 10, 12, 14, 16 and 18 carbon atoms in their N-alkyl groups and dimethylaminoethanol to give the intermediate products, 2-dimethylaminoethylalkanoates(2). Quaternization of these products(2) was permitted to from 2-(acyloxyethyldimethylammonic)- acetates(3), whose structures were identified by elemental analysis, IR spectrophotometry and ^1Hnmr spectrometry. The yield of the final products was shown in the range of 77-80% based on the intrmediate products. The surface tension of the aqueous solution of (3) was measured, and the critical micelle concentrations (cmc) were shwn in the range of 2.1×10exp(-3) - 3.3×10exp(-4)mol/l, and the surface tension at cmc was 28-36 dyne/com. Cmc waw lowered gradually by the increment of the length of N-alkyl ester containing group. The isoelectric point was shown in the range of 4.44-5.20. It showed a tendency to lean toward the acidic site and its range was broadened as increase of the hydrophobic group length. A linear relationship between log cmc and the number of carbon atoms(N) in the hydrophobic alkyl chain was shown in the relative equation of log cmc=-1.75-0.1N, and the contribution rate of N on the standard free energy change in micellization, △(△G˚m)/△N, was calculated as-0.23 RT.
남기대,정노희,소부영,소희준 한국유화학회 1989 한국응용과학기술학회지 Vol.6 No.1
A series of four sodium α-sulfo fatty vinyl ester oligomers including sodium α-sulfo lauric acid vinyl ester oligomer, sodium α-sulfo myristic acid vinyl ester oligomer, sodium α-sulfo palmitic acid vinyl ester oligomer and sodium α-sulfo stearic acid vinyl ester oligomer were examined for surface activities such as surface tension, foaming power, foam stability, emulsifying power, dispersion effect, solubilization of orange OT. The critical micelle concentration(CMC) was also evaluated. Consequently, these sodium α-sulfo fatty acid vinyl ester oligomers were shown to have a good cohesive power and dispersion effect.
고분자(高分子) 계면활성제(界面活性劑)에 관(關)한 연구(硏究) 2 : 나트륨 알파 술폰 지방산(脂肪酸) 비닐에스테르 올리고머류(類)의 계면활성(界面活性)
정노희,남기대,소부영,소희준 한국유화학회 1989 한국응용과학기술학회지 Vol.6 No.1
A series of four sodium α-sulfo fatty vinyl ester oligomers including sodium α-sulfo lauric acid vinyl ester oligomer, sodium α-sulfo myristic acid vinyl ester oligomer, sodium α-sulfo palmitic acid vinyl ester oligomer and sodium α-sulfo stearic acid vinyl ester oligomer were examined for surface activities such as surface tension, foaming power, foam stability, emulsifying power, dispersion effect, solubilization of orange OT. The critical micelle concentration(CMC) was also evaluated. Consequently, these sodium α-sulfo fatty acid vinyl ester oligomers were shown to have a good cohesive power and dispersion effect.
고분자(高分子) 계면활성제(界面活性劑)에 관(關)한 연구(硏究) (제(第) 2 보(報));나트륨 알파 술폰 지방산(脂肪酸) 비닐에스테르 올리고머류(類)의 계면활성(界面活性)
정노희,남기대,소부영,소희준,Jeong, No-Hee,Nam, Ki-Dae,So, Boo-Young,So, Hee-Jun 한국응용과학기술학회 1989 한국응용과학기술학회지 Vol.6 No.1
A series of four sodium ${\alpha}-sulfo$ fatty vinyl ester oligomers including sodium ${\alpha}-sulfo$ lauric acid vinyl ester oligomer, sodium ${\alpha}-sulfo$ myristic acid vinyl ester oligomer, sodium ${\alpha}-sulfo$ palmitic acid vinyl ester oligomer and sodium ${\alpha}-sulfo$ stearic acid vinyl ester oligomer were examined for surface activities such as surface tension, foaming power, foam stability, emulsifying power, dispersion effect, solubilization of orange OT. The critical micelle concentration(CMC) was also evaluated. Consequently, these sodium ${\alpha}-sulfo$ fatty acid vinyl ester oligomers were shown to have a good cohesive power and dispersion effect.
Jeong No Hee(鄭魯喜),Nam Ki Dae(南基大),So Boo Young(蘇富永),So Hee Jun(蘇熙準) 한국유화학회 1989 한국응용과학기술학회지 Vol.6 No.1
A series of four sodium α-sulfo fatty vinyl ester oligomers including sodium α-sulfo lauric acid vinyl ester oligomer, sodium α-sulfo myristic acid vinyl ester oligomer, sodium α-sulfo palmitic acid vinyl ester oligomer and sodium α-sulfo stearic acid vinyl ester oligomer were examined for surface activities such as surface tension, foaming power, foam stability, emulsifying power, dispersion effect, solubilization of orange OT. The critical micelle concentration(CMC) was also evaluated. Consequently, these sodium α-sulfo fatty acid vinyl ester oligomers were shown to have a good cohesive power and dispersion effect.