Carbohydrates surfactants

The eluate is nebulized and the aerosol passes through a heated tube where the mobile phase is vaporized. The remaining microparticles are then passed through a beam of light. The incident light is scattered by the particles [125]. This detector detects any sample less volatile than the mobile phase, such as lipids, carbohydrates, surfactants, and polymers. Unlike RI and low-wavelength UV, gradient conditions can be used. 

Wagner, R., Richter, L., Weissmuller, J., Reiners, J., Klein, K.D., Schaefer, D. and Stadtmuller, S. (1997) Silicon-modified carbohydrate surfactants 4. The impact of substructures on the wetting behaviour of siloxanyl-modified carbohydrate surfactants on low-energy surfaces. Appl. Organometallic Chem., 11(7), 617-32. 

R. Wagner, L. Richter, B. WeUand, J. Reiners, J. WeissmtiUer, Appl. Organometal. Chem., 1996, 10(6), 437 50. Sdicon-modified carbohydrate surfactants. 11. SUoxanyl moieties containing branched structures. ... 

The field of monosaccharides, disaccharides and polysaccharids contains many industrial examples of semi-synthesis, which have entered chemical history, such the hydrolysis of starch to form D-glucose, the esterification of cellulose, the chemistry of rayon and, more recently, advances in the chemistry of carbohydrate surfactants (ref.83). 

Ferrocene was functionalized at the 1,1 -positions by a sugar moiety (1-amino-l-deoxy-D-sorbitol) and a long alkyl chain 44 in order to obtain lyotropic properties. The substituents, in particular the sugar framework, were selected in view of successful investigations performed with organic-type amphiphilic carbohydrate surfactants. Compound 44 showed both thermotropic and lyotropic mesophases. In the bulk, a SmA phase formed from 98 to 137 °C. When 44 was mixed with an excess of water, a fluid phase was obtained. For the thermotropic SmA phase, a r/-layer spacing... 

Materials. - A ferrocene-containing carbohydrate surfactant (shown as compound 1 from the reference in 39 below) has been prepared and its thermotropic and lyotropic phase behaviour examined. 

Buschmann, N., F. Hiilskotter, Potentiometric titration of carbohydrate surfactants alkylpoly-glucosides, A-acylglucamides, sorbitan esters, Comun. Jorn. Com. Esp. Deterg., 1997, 27,... 

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