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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.
고분자(高分子) 계면활성제(界面活性劑)에 관(關)한 연구(硏究)(제(第) 1 보(報));나트륨 알파 술폰 지방산(脂肪酸) 비닐에스테르 올리머고류(類)의 합성(合成)
정노희,노승호,남기대,소부영,Jeong, No-Hee,No, Sueng-Ho,Nam, Ki-Dae,So, Boo-Young 한국응용과학기술학회 1989 한국응용과학기술학회지 Vol.6 No.1
Four fatty acid vinyl esters were synthesized by transesterification between vinyl acetate and lauric acid, myristic acid, palmitic acid, stearic acid, respectively. Fatty acid vinyl ester oligomers were prepared from polymerization of four fatty acid vinyl esters in the presence of potassium persulfate in methanol. The ${\alpha}-sulfonation$ of these four fatty acid vinyl ester oligomer were carried by direct addition of sulfur trioxide. Especially, molecular weights of sodium ${\alpha}-sulfo$ fatty acid vinyl ester oligomers were measured by boiling point method.
고분자 계면활성제에 관한 연구 ( 제6보 ) - 알파 술폰 지방산 음이온성 올리고머 계면활성제의 계면성 -
정노희,박상석,전환경,조경행,남기대 ( No Hee Jeong,Sang Seok Park,Hoan Kyung Jeong,Kyung Haeng Cho,Ki Dae Nam ) 한국공업화학회 1993 공업화학 Vol.4 No.4
Sodium dodecyl polyoxyethylene α-sulfo alkanoates류 15종에 대하여 표면장력, 기포력 및 그 안정성, 유화력, 분산성, 습윤성 및 가용화능 등의 계면활성을 실험하였다. 이들 시료의 묽은 수용액에 대한 임계미셀농도는 10^(-4)∼10^(-5)㏖/ℓ 범위였고 그 농도범위에서의 표면장력은 30∼47dyne/㎝였으며, 일정농도 수용액에 대한 기포력 및 그 안정성, 벤젠 및 대두유에 대한 유화력, 탄산칼슘 및 산화철에 대한 분산성, 그리고 습윤력과 Orange OT에 대한 가용화능을 실험하여 검토한 결과 O/W형 유제 및 분산제로서의 응용성이 기대된다. All the activities and physical properties including surface tension, foaming power, foam stability, emulsifying power, dispersion effect, wettability and solubilization of sodium dodecyl polyoxyethylene α-sulfo alkanoates aqueous solution were measured and critical micelle concentration was evaluated. Their cmc ebaluated by the surface tension method was 10^(-4)∼10^(-5)㏖/ℓ, and surface tension of the aqueous solution was decreased to 30∼70dyne/㎝. The experimental results for foaming power, foam stability, emulsifying power in benzene or soybean oil, dispersion effect in calcium carbonate, wettability and solubilization showed a good and efficient surface active properties, and then it would be expected that these products could be applied as O/W type emulsifier, dispersion agent.
2 - Hydroxyethyl Acrylate 가 아크릴계 점착제의 물성에 미치는 영향
정노희(Noh Hee Jeong),박영준(Young Jun Park),이향우(Hyang Woo Lee),남기대(Ki Dae Nam) 한국유화학회 2000 한국응용과학기술학회지 Vol.17 No.4
N/A Acrylic pressure sensitive adhesives of n-butyl acrylate, 2-ethyl acrylate, methyl acrylate, vinyl acetate, acrylic acid, acrylonitrile and 2-hydroxyethyl acrylate were synthesized and basic physical properties of pressure sensitive adhesives with increasing the contents of 2-hydroxyethyl acrylate were investigated. 2-Hydroxyethyl acrylates effects on glass transition temperature, viscosity, hardening time and peel strength. Glass transition temperature(Tg) decreased with increasing the contents of 2-hydroxyethyl acrylate. Viscosity and hardening time were increased with increasing the contents of 2-hydroxyethyl acrylate. On the other hands, peel strength increased with increasing the contents of 2-hydroxyethyl acrylate up to 6 wt% and the decreased at further higher contents of 2-hydroxyethyl acrylate. In peel test, interfacial failure was occured in 8 wt% and 10wt%.
이소플라본을 함유한 마이크로에멀젼의 안정성 및 응용 평가
정노희(Noh Hee Jeong),문영진(Young Jin Moon),이향우(Hyang Woo Lee),남기대(Ki Dae Nam) 한국유화학회 2002 한국응용과학기술학회지 Vol.19 No.3
N/A The isoflavone as a derivatives of flavone is colorless crystalline compounds. It acts on synthesis of fibronectine, collagen Ⅲ, collagen Ⅰ in human normal fibroblast by same biological activity to animal hormone. In this study, we tried to search and demonstrate system content rate of dermal translocation system for cosmetics using microemulsion containing isoflavone. The results of microemulsion stability test by centrifugation, storage in incubator and circulation chamber showed that separation of phase did not appear after 30 days. By the skin flexibility test, it has confirmed efficiency and effect as cosmetics materials. As the result, the microemulsion showed that skin flexibility factor improved up to 7.6%. We could confirm that O/W type microemulsion was stable system.
Sodium Bis ( alkyl decaoxyethylene ) Sulfonated Succinate 류의 합성
이학봉,정노희,남기대 ( Hak Bong Lee,No Hee Jeong,Ki Dae Nam ) 한국유화학회 1994 한국응용과학기술학회지 Vol.11 No.1
New anionic oligomeric surfactants, sodium bis(alkyl decaoxyethylene) sulfonated succinates, had been synthesized through the addition reaction of sodium hydrogen sulfite to bis(alkyl decaoxyethylene) maleates. Bis(alkyl decaoxyethylene) maleates were obtained by esterification with maleic anhydride and long chain alkyl decaoxyethylene eths which were also obtained by addition ethylene oxide 10 mole to straight long chain alcohol with alkyl group having from 10 to 18 carbon atoms, their structure of the synthetic compounds have been characterized with IR, ~1H MMR and elemental analysis respectively.