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남기대,정노희,노승호,Nam, Ki-Dae,Jeong, No-Hee,No, Sueng-Ho 한국응용과학기술학회 1989 한국응용과학기술학회지 Vol.6 No.2
Allyl aliphatic carboxylates were synthesized by azotropic reaction with benzene between allyl alcohol and capric acid, lauric acid, myristic acid, palmitic acid or stearic acid respectively. allyl aliphatic carboxylates oligomers were prepared from polymerization giving allyl aliphatic carvboxylates in the presence of potassium persulfate in methanol, and the ${\alpha}-sulfonation$ of these five allyl aliphatic carboxylates oligomers were carried by direct addition of dry sulfur trioxide. Especially, molecular weights of fatty acid alylester oligomers and their sodium salts of ${\alpha}-sulfo$ fatty acid allylester oligomers were measured by boiling point method.
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.
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.
디글리세롤 N - 아실 글루탐산 에스테르류의 합성 및 계면성
정환경,정노희,남기대 ( Hwan Kyeong Jeong,No Hee Jeong,Ki Dea Nam ) 한국공업화학회 1994 공업화학 Vol.5 No.2
디글리세를 N-아실 글루탐산 에스테르 비이온성 계면활성제를 4급 암모늄염을 촉매로 사용하여 글리시돌과 N-아실글루탐산과 에스테르 반응시켜 합성하였다. 표면장력법에 의해서 산정한 임계미셀농도는 0.15∼0.75㏖/ℓ이었고 수용액에서의 표면장력은 28∼35dyne/㎝로 저하되었다. 또한 아실기의 탄소수가 12인 L-DGLG가 가장 좋은 기포력과 유화력을 나타냈고, 대두유보다 블루엔에서 유화적이 높게 관찰되었다. 카본블랙과 산화철에서 아실기 탄소수 16과 18인 L-DGPG와 L-DGSG는 L-DGLG보다 분산성이 우수했으며, 이들은 모두 좋은 생분해성을 나타냈다. Nonionic surfactants, diglycerol N-acyl glutamates were prepared through the esterification of N-acyl glutamic acids and glycidol in the presence of quarternary ammonium salts. Their cmc evaluated by the surface tension method was 0.15∼0.75mmol/ℓ, and the surface tension of aqueous solution was decreased to 28∼ 35dyne/㎝. L-DGLG with acyl group of carbon number of 12 showed good foaming power and emulsifying power, and the emulsifying power in toluene was stronger than in soybean oil. Dispersion effect of L-DGPG and L-DGSG with acyl group of carbon number of 16 and 18 in carbon black and ferric oxide were higher than L-DGLG. All of them showed good biodegradability at 20℃.
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.