Structure and Performance Property Relations of Straight-Chain Alkylbenzenes. Pure Isomer Correlations

Rubinfeld, Joseph; Emery, E. M.; Cross, H. D.

doi:10.1021/i360013a010

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…For some time, surfactant hydrophobe positional isomers have been used as a means to access surfactant properties that are not available to normal chain surfactants. For example, in some cases the introduction of a headgroup to a nonterminal carbon position has been shown to increase the solubility of some surfactants and to destabilize foams by lowering cohesive interactions between hydrophobe chains . Nevertheless, there are few systematic studies on the effect of varying the position of the headgroup along the alkyl chain moiety in sugar-based surfactants.…”

Section: Introductionmentioning

confidence: 99%

Alkyl Chain Positional Isomers of Dodecyl β-d-Glucoside: Thermotropic and Lyotropic Phase Behavior and Detergency

et al. 2001

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A series of six dodecyl glucopyranoside surfactants, each with a single glucopyranoside headgroup attached sequentially along the chain from carbon 1 to carbon 6, have been prepared in order to systematically simulate “branching” in glucose-based surfactants. The thermotropic and lyotropic liquid crystalline properties of the series have been investigated, as well as the hard soil detergency of these surfactants. The introduction of “branching” into the alkyl chain strongly affects the packing of the molecules into crystals and liquid crystalline structures, thereby influencing the thermotropic properties and the surfactant/water binary phase diagrams. Attachment of the headgroup at the terminal carbon or at carbon 2 does not appreciably influence the surfactant behavior, while attachment at carbon 3, 4, 5, or 6 results in very different behavior from that of either 1 or 2. This discontinuous change is reflected in the detergency behavior of the surfactants and can be attributed to the change in length and shape of the surfactant molecules and the subsequent changes in intermolecular interaction.

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Section: Introductionmentioning

confidence: 99%

Alkyl Chain Positional Isomers of Dodecyl β-d-Glucoside: Thermotropic and Lyotropic Phase Behavior and Detergency

et al. 2001

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“…of benzene with olefins in the presence of Friedel-Crafts catalysts. Studies on the solubility, foam stability, and surface-active properties of these products have shown that the length of their alkyl chain and the position of the phenyl group on it are important factors in determining their performance characteristics (Anstett et al, 1966;Rubinfeld et al, 1964Rubinfeld et al, , 1965. Certain constant synergistic effects have also been observed for various combinations of phenylalkanes (Sweeny and Olson, 1964).…”

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confidence: 99%