Effect of adding glycols to the micellar properties of Tween: small-angle neutron scattering and turbidity measurements

Small-angle neutron scattering (SANS) and turbidity measurements have been carried out on the nonionic surfactants Tween 20 and Tween 80, in the presence of diethyleneglycol (DEG), triethyleneglycol (TEG), ethylene glycol monoethyl ether (EGMEE), and ethyleneglycol mono butyl ether (EGMBE). SANS mea...

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Veröffentlicht in:	Colloid and polymer science 2004-12, Vol.283 (2), p.164-168
Hauptverfasser:	RAKESH KUMAR MAHAJAN, CHAWLA, Jyoti, MANDEEP SINGH BAKSHI, KAUR, Gurinder, VINOD KUMAR ASWAL, PREM SAGAR GOYAL
Format:	Artikel
Sprache:	eng
Schlagworte:	Agglomeration Chemistry Ethers Exact sciences and technology General and physical chemistry Hydrophobicity Micelles Neutron scattering Neutrons Solubilization Styrene acrylonitrile resins Surface physical chemistry Surface-active agents: properties Turbidity
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Zusammenfassung:	Small-angle neutron scattering (SANS) and turbidity measurements have been carried out on the nonionic surfactants Tween 20 and Tween 80, in the presence of diethyleneglycol (DEG), triethyleneglycol (TEG), ethylene glycol monoethyl ether (EGMEE), and ethyleneglycol mono butyl ether (EGMBE). SANS measurements show that the shapes of the Tween 20 and Tween 80 micelles are oblate ellipsoidal, which do not change predominantly in the presence of DEG and TEG. However, the presence of EGMBE and EGMEE reduces the aggregation number of Tween. This has been attributed to the solubilization of EGMBE and EGMEE in the Tween micelles, providing them with additional hydrophobicity.[PUBLICATION ABSTRACT]
ISSN:	0303-402X 1435-1536
DOI:	10.1007/s00396-004-1112-5