Solubilization Enhancing Effect of A-B-Type Silicone Surfactants in Microemulsions

Autor:	Md. Hemayet Uddin, Asao Harashima, Haruhiko Furukawa, Hironobu Kunieda, Anil Kumar
Rok vydání:	2001
Předmět:	Aqueous solution Polymers and Plastics Chemistry Dodecane Mole fraction Surfaces Coatings and Films Hydrophilic-lipophilic balance chemistry.chemical_compound Silicone Pulmonary surfactant Chemical engineering Phase (matter) Polymer chemistry Microemulsion Physical and Theoretical Chemistry
Zdroj:	Journal of Dispersion Science and Technology. 22:245-253
ISSN:	1532-2351 0193-2691
DOI:	10.1081/dis-100105211
Popis:	We report a solubilization enhancing effect of A-B-type silicone surfactants in microemulsions. The effect of added long-chain silicone surfactants, Si25C3EO51.6 (extended length≈21.8 nm) and Si14C3EO15.8 (extended length≈8.5 nm) on the solubilization capacity of C12EO5 (extended length≈3 nm)/water/dodecane microemulsion was investigated at the hydrophile-lipophile balance temperature at which a microemulsion (surfactant) phase containing equal weights of oil and water touches the three-phase body. The addition of silicone surfactants exhibits an enormous increase of the swelling of the middle phase primarily with an associated increase in the structural length scale of the microemulsion. The solubilization power increases with increasing x2 (mole fraction of silicone surfactants to the total surfactant) and going through a maximum it decreases, since a lamellar liquid crystal introduces in the multiphase region at low surfactant concentrations. The solubilization capacity reaches at the maximum to an alm...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cd2f3bec48ded4652c9cf117542a27d0 https://doi.org/10.1081/dis-100105211 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.