Adsorption of mixtures of nonionic sugar-based surfactants with other surfactants at solid/liquid interfaces II. Adsorption of n-dodecyl-beta-D-maltoside with a cationic surfactant and a nonionic ethoxylated surfactant on solids.
Synergy and antagonism between sugar-based surfactants, a group of environmentally benign surfactants, and cationic surfactants and nonionic ethoxylated surfactants have been investigated in this study with solids which adsorbs only one or other when presented alone. Sugar-based n-dodecyl-beta-D-maltoside (DM) does not adsorb on silica by itself. However, in mixtures with cationic dodecyltrimethylammonium bromide (DTAB) and nonionic nonylphenol ethoxylated decyl ether (NP-10), DM adsorbs on silica through hydrophobic interactions. In contrast, although DM does adsorb on alumina, the presence of NP-10 reduces the adsorption of DM as well as that of the total surfactant adsorption. Such synergistic/antagonistic effects of sugar-based n-dodecyl-beta-D-maltoside (DM) in mixtures with other surfactants at solid/liquid interfaces were systematically investigated and some general rules on synergy/antagonism in mixed surfactant systems are identified. These results have implications for designing surfactant combinations for controlled adsorption or prevention of adsorption.
Zhang
Lei
L
NSF Industry/University Cooperative Research Center (I/UCRC) for Advanced Studies on Novel Surfactant, School of Engineering and Applied Sciences, Columbia University, New York, NY 10027, USA.
Zhang
Rui
R
Somasundaran
P
P
D000327:Adsorption; D002412:Cations / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D010647:Phenyl Ethers / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*
D002412:Cations; D005960:Glucosides; D010647:Phenyl Ethers; D000644:Quaternary Ammonium Compounds; D013501:Surface-Active Agents; C519923:nonylphenol ethoxylated decyl ether; C040358:dodecyl maltoside; D012822:Silicon Dioxide; C022806:dodecyltrimethylammonium