Features of the structuration of oligomer solutions of surfactants

Autor:	Sh.G. Vengerovskaya, T.S. Khramova, T.E. Lipatova, L.S. Sheinina
Rok vydání:	1985
Předmět:	General Engineering Oligomer Micelle law.invention Surface tension chemistry.chemical_compound Pulmonary surfactant chemistry Chemical engineering law Critical micelle concentration Polymer chemistry Molecule Electron microscope
Zdroj:	Polymer Science U.S.S.R.. 27:193-198
ISSN:	0032-3950
DOI:	10.1016/0032-3950(85)90114-5
Popis:	Solutions of surfactants of differing concentrations in polyoxypropylene glycol have been investigated by electron microscopy, NMR and surface tension methods. It is shown that the introduction of surfactants leads to a morphological transition in surface layers of the oligoether, and this is related to a change in their energetic and entropic states. In the interval of surfactant concentration from 0 to 0·3% it was found that a 0·03% concentration corresponds to a reorientation of sufractant molecules in surface layers, thus ensuring their stability. The formation of micelles in these solutions at a surfactant concentration of 0·15% is preceded by an extremal type of change in thermodynamic functions of surface layers of the surfactants.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ebc068dfd1d4605a06707d7da997e355 https://doi.org/10.1016/0032-3950(85)90114-5 Zobrazit plný text záznamu