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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 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.
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.
알파 술폰지방산 다가알코올 에스테르류의 합성 및 미셀형성거동
정노희 ( No Hee Jeong ) 한국유화학회 1998 한국응용과학기술학회지 Vol.15 No.3
In recent years, there has been considerable interest in the development of new functional surfactant including new type of anionic surfactants. Anionic surfactants, α-sulfo fatty acids that straight long chain alkyl group having from 12 to 18 carbon atoms, were synthesized with sylfr trioxide-dioxane complex to good yield. Xylitol α-sulfo fatty acid esters were obtained by reaction that the acetification and esterification of xylitol, by addition reaction with sodium chloride and hydrolysis respectively. These compounds were a new group of destructible surfactants which readily hydrolyzed and oxidized in natural water reservoirs. Physical properties of these new compounds involved surface tension, critical micelle concentration(cmc), foaming power, emulsion power, and hydrolysis properties, were measured. The cmc values of the compounds by ring method were assumed to 7.0×10exp(3)∼×10exp(2)mol/ℓ range and surface tensions at cmc were 25∼31dyne/㎝ respectively.
( 2- ( 2,6- 디클로로페닐 ) 아미노 ) 페닐 아세트산나트륨의 합성
황선원,정노희,남기대 ( Sean Won Hwang,No Hee Jeong,Ki Dae Nam ) 한국공업화학회 1994 공업화학 Vol.5 No.3
(2-(2, 6-디클로로페닐)아미노)페닐 아세트산나트륨의 합성단계를 줄이고 각 단계별 합성수율을 향상시켰다. 합성은 4단계로 하였으며 출발물질은 2, 6-디클로로아닐린과 모노브로모벤젠을 사용하였다. 첫단계인 Ullmann반응은 구리촉매를 3회 분할 첨가하여 80%의 수율로 진행시켰고, 아실화와 프리델-크라프트 반응도 효율적으로 단순화하였다. 최종 반응생성물인 디클로페낙은 클라이젠 용액을 사용하여 제3단계에서 얻은 1-(2, 6-디클로로페닐)-2-인돌리논을 가수 분해함으로써 97%의 수율로 얻었다. The synthetic steps of sodium(2-(2, 6-dichlorophenyl) amino)phenylacetate were reduced and increased the yield in each steps. The synthetic process was composed to four steps and 2, 6-dichloroaniline and monobromobenzene were used as starting materials. The first step, Ullmann reaction was carried out by addition of copper catalyst in three lots in 80% yield. The steps of acylation and Friedel-Craft reaction were simplified successfully. The final product, diclofenac was obtained in 97% yield by hydrolyzing 1-(2, 6-dichlorophenyl)-2-indolinone which was gained in third step with Claisen-solution.
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.