Micropolarity and water penetration in micellar aggregates of linear and branched hydrocarbon surfactants

• Published in: Langmuir Vol. 6; no. 8; pp. 1376 - 1378
• Main Authors: Varadaraj, Ramesh, Bock, Jan, Valint, Paul, Brons, Neil
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.08.1990
• Subjects: 02 PETROLEUM; 020400 - Petroleum- Processing; ALKALI METAL COMPOUNDS; AQUEOUS SOLUTIONS; Chemistry; Colloidal state and disperse state; DATA; DISPERSIONS; ELECTRICAL PROPERTIES; Exact sciences and technology; EXPERIMENTAL DATA; General and physical chemistry; INFORMATION; MICELLAR SYSTEMS; Micelles. Thin films; MIXTURES; NUMERICAL DATA; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POLARIZABILITY; SODIUM COMPOUNDS; SODIUM SULFATES; SOLUTIONS; SULFATES; SULFUR COMPOUNDS; SURFACTANTS; TEMPERATURE EFFECTS; Aggregation; Sodium Compounds; Anionic surfactant; Temperature; Micelle; Solvatochromism; Polarity; Experimental study; Microstructure

The micropolarity of aqueous micellar solutions of ethoxylates, sodium ethoxy sulfates, and sulfates derived from linear and branched hydrocarbon alcohols was investigated by using a solvatochromic pyridinio-N-phenoxide betaine, ET-30, polarity probe. Branching of the hydrophobe resulted in a more p...