EFFECT OF SILOXANYL GROUPS ON THE INTERFACIAL BEHAVIOR OF QUATERNARY AMMONIUM-COMPOUNDS

被引：51

作者：

SCHMAUCKS, G ^{[1
]}

SONNEK, G ^{[1
]}

WUSTNECK, R ^{[1
]}

HERBST, M ^{[1
]}

RAMM, M ^{[1
]}

机构：

[1] CENT INST PHYS CHEM,BERLIN,GERMANY

来源：

LANGMUIR | 1992年 / 8卷 / 07期

关键词：

D O I：

10.1021/la00043a007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

N-Alkyl-N,N-dimethyl-(3-siloxanylpropyl)ammonium halides of the general formula (Me3SiO)(SiMe2O)nSiR1R2(CH2)3N+Me2R3X- (R1,R2 = Me, Me3SiO; n = 0, 1; R3 = alkyl or alkenyl; X = halogen) were prepared by hydrosilylation of N,N-dimethylallylamine with siloxanes in the presence of a platinum catalyst followed by quaternization with alkyl halides. The interfacial behavior of the isomerically pure quaternary ammonium compounds was characterized and found to strongly depend on the number of silicon atoms in the molecule. A model of the arrangement of surfactant molecules in the adsorption layer, based on results of X-ray crystal structure analysis and estimation of required surface area per molecule from the sigma/log c curve, is discussed.

引用

页码：1724 / 1730

页数：7

共 34 条

[1] CHEMICAL-STRUCTURE AND SURFACE-ACTIVITY .10. THE EFFECT OF HYDROXYL GROUP CONFIGURATION ON THE ADSORPTION OF 2-ALKYL-4-(HYDROXYMETHYL)-1,3-DIOXOLANES AND 2-ALKYL-5-HYDROXY-1,3-DIOXANES AT THE AQUEOUS-SOLUTION AIR INTERFACE [J].