TY - JOUR
T1 - SURFACE PROPERTIES OF LONG CHAIN ALKYL MONOAZA CROWN ETHERS.
AU - Kuo, Ping Ling
AU - Ikeda, Isao
AU - Okahara, Mitsuo
PY - 1982/1/1
Y1 - 1982/1/1
N2 - In the reported experiments, surface properties of long chain N-alkyl monoaza crown ethers, i. e. , monoaza 15, 18, and 21 crowns substituted by C//8-C//1//2 alkyl groups (I) were investigated and compared with those of corresponding open chain compounds, i. e. , homogeneous polyoxyethylenated alkylamines (II). Monoaza crown ethers (I) are characteristically differentiated from the open chain alkylamines (II) in the points of smaller values of cloud point, c. m. c. , and gamma cmc, but larger values of adsorption area and free energy change of adsorption ( DELTA G). In the range of investigated alkyl chain length, the wetting and foaming properties of I are found to be better than those of II. From the views clarified above, I is characterized as a new useful surface active compound.
AB - In the reported experiments, surface properties of long chain N-alkyl monoaza crown ethers, i. e. , monoaza 15, 18, and 21 crowns substituted by C//8-C//1//2 alkyl groups (I) were investigated and compared with those of corresponding open chain compounds, i. e. , homogeneous polyoxyethylenated alkylamines (II). Monoaza crown ethers (I) are characteristically differentiated from the open chain alkylamines (II) in the points of smaller values of cloud point, c. m. c. , and gamma cmc, but larger values of adsorption area and free energy change of adsorption ( DELTA G). In the range of investigated alkyl chain length, the wetting and foaming properties of I are found to be better than those of II. From the views clarified above, I is characterized as a new useful surface active compound.
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M3 - Article
AN - SCOPUS:0019934473
VL - 19
SP - 4
EP - 6
JO - Tenside, Surfactants, Detergents
JF - Tenside, Surfactants, Detergents
SN - 0932-3414
IS - 1
ER -