N-아실-아미노산계 계면활성제에 관한 연구(제8보)-N-아실-아미노산계 음이온성 계면활성제의 임계미셀농도 및 유화안정성-

김태영; 김상춘; 이선주; 이진희; 남기대

Journal of the Korean Industrial and Engineering Chemistry, Vol.6, No.5, 785-794, October, 1995

Studies on the Surfactants of the N-Acyl Amino Acid(part 8) (cmc and Emulsion Stability of N-Acyl Amino Acid Type Anionic Surfactant)

김태영, 김상춘, 이선주, 이진희, 남기대

초록

N-아실 아미노산계 음이온성 계면활성제중 sodium N-acyl-N-methyl-β-alaninate, sodium N-acyl sarcosinate 그리고 sodium N-acyl-N-methyl taurate를 선택하여 임계미셀농도, 유화력 그리고 유화안정성을 비교 검토하였다. 임계미셀농도 및 표면장력을 측정한 결과 3.0×10^-4∼4.0×10^-3mol/ℓ 농도 범위에서 25∼46dyne/cm까지 표면장력이 저하됨을 알았고, 소수성 성분의 탄소수 증가에 따라 cmc는 저농도측으로 이행하고 표면장력 저하능도 증가되는 것을 알 수 있다. 유기용매인 벤젠과 식물성 기름인 피마자유에 대한 유화력을 시험한 결과 유기용매나 식물성 기름에 대하여 전반적으로 우수한 유화력을 나타내었고, 소수성 부분의 탄소수 증가에 따라 유화력은 감소하는 경향을 나타냈으며 유기용매에 대한 유화력이 식물성 기름보다 양호한 결과를 얻었다. 에멀젼 제조시 공업적으로 이용이 되고 있는 α-sulfo fatty acid methyl ester 및 sodium N-cocoyl-N-methyl taurate의 경우 보다 sodium N-lauroyl sarcosinate, sodium N-lauroyl-N-methyl-β-alaninate 및 sodium N-lauroyl-N-methyl taurate의 유화상이 양호한 것을 알 수 있었다.

The basic surface active properties of surface tension, cmc, emulsifying power and emulsion stability of N-acyl amino acid type anionic surfactants, that is, sodium N-acyl-N-methyl-β-alaninate, sodium N-acyl sarcosinate and sodium N-acyl-N-methyl-taurate are investigated. The cmc values determined by measurements of surface tension were in the range of 3.0×10^-4 to 4.0×10^-3mol/ℓ and the surface tensions of the aqueous solutions revealed in the range of 25 to 46dyne/cm. From those results, It was found that the surface tension lowering ability was increased with the increase of hydrophobic alkyl chain. The cmc values of sulfonated groups were inferior to those of long chain carboxylated ones at given hydrophobic group. Emulsion and its stability of compounds were also investigated by microphotograph. The stabilities of dispersion and emulsion for sulfonated groups were superior to that of carboxylated ones.

[References]

Miyamichi E, J. Pharm. Soc. Jpn., 548, 863 (1927)
Staudinger H, Becker HV, Ber., 70B, 889 (1937)
Naudet M, Desnuelle P, Bull. Soc. Chem. France, 1143 (1948)
Takao K, J. Fat Fatty Oil., 45, 86 (1992)
Heher D, Schroer G, Kinese H, Ger. Patent, 1,262,216 (1968)
Tsuchia M, Bull. Chem. Soc. Jpn., 42, 1756 (1969)
Matzner M, Chem. Rev., 64, 645 (1964)
김태영, 공학박사학위논문, 충북대학교 (1994)
KS-M0000-1991, Method 48
Rosano HL, Tohn D, Whittan JH, J. Am. Oil Chem. Soc., 59, 360 (1982)
Kimura D, J. Jpn. Oil Chem. Soc., 24, 521 (1975)
International Critical Tables, 4, 432 (1928)
Sata N, Kyuzyo K, Bull. Chem. Soc. Jpn., 26, 177 (1953)
Herjfield JH, J. Phys. Chem., 56, 953 (1952)
Nakagawa T, Shinoda K, "Solvent Properties of Surfactant Solution," 121 ~ 135, Marcel Dekker, New York (1967)
Bardy AP, J. Phys. Chem., 53, 56 (1949)
Klevens HL, J. Am. Oil Chem. Soc., 30, 76 (1953)
Bancroft WD, J. Phys. Chem., 17, 501 (1913)
Bancroft WD, J. Phys. Chem., 19, 275 (1915)
Shermann P, "Emulsion Science," Academic Press, New York (1968)

[Referenced By]

[1] Miyamichi E, J. Pharm. Soc. Jpn., 548, 863 (1927)

[2] Staudinger H, Becker HV, Ber., 70B, 889 (1937)

[3] Naudet M, Desnuelle P, Bull. Soc. Chem. France, 1143 (1948)

[4] Takao K, J. Fat Fatty Oil., 45, 86 (1992)

[5] Heher D, Schroer G, Kinese H, Ger. Patent, 1,262,216 (1968)

[6] Tsuchia M, Bull. Chem. Soc. Jpn., 42, 1756 (1969)

[7] Matzner M, Chem. Rev., 64, 645 (1964)

[8] 김태영, 공학박사학위논문, 충북대학교 (1994)

[9] KS-M0000-1991, Method 48

[10] Rosano HL, Tohn D, Whittan JH, J. Am. Oil Chem. Soc., 59, 360 (1982)

[11] Kimura D, J. Jpn. Oil Chem. Soc., 24, 521 (1975)

[12] International Critical Tables, 4, 432 (1928)

[13] Sata N, Kyuzyo K, Bull. Chem. Soc. Jpn., 26, 177 (1953)

[14] Herjfield JH, J. Phys. Chem., 56, 953 (1952)

[15] Nakagawa T, Shinoda K, "Solvent Properties of Surfactant Solution," 121 ~ 135, Marcel Dekker, New York (1967)

[16] Bardy AP, J. Phys. Chem., 53, 56 (1949)

[17] Klevens HL, J. Am. Oil Chem. Soc., 30, 76 (1953)

[18] Bancroft WD, J. Phys. Chem., 17, 501 (1913)

[19] Bancroft WD, J. Phys. Chem., 19, 275 (1915)

[20] Shermann P, "Emulsion Science," Academic Press, New York (1968)