The crystalline molecular complex between cationic surfactant and some additive substances: Part I: complex formation with phenol derivative as additives

The Surfactant Molecular Complex Formation(III): Systems of Anionic Surfactants and Various Phenols and Some Other Materials

“…It seems that this lecular complex formation and its stable isolation in a system such tendency is also generalized for the anionic surfactant composed of quaternary ammonium cationic surfactants, species as described below (2,3). such as CTAB(cetyltrimethylammonium bromide), and of To date, the crystalline surfactant molecular complexes several aromatic substances (1)(2)(3).…”

Light and Oxygen Protective Properties of Materials Induced by Surfactant Molecular Complex Formation

“…The surfactant molecular complexes were obtained by the common method which appeared in the above-cited reports (1)(2)(3). One should refer to them for details.…”

“…Ionic surfactants form crystalline molecular complexes irrespective of their ionic nature (1)(2)(3). The authors have so far proved the stable occurrence of these complexes firmly on the basis of X-ray crystallography (4), and now have established that the complexes are categorized in a group of novel substances which have simultaneous characteristics of novel surfactants, showing cmc's and the Krafft points different from those of their mother species (5,6).…”

“…The authors have so far proved the stable occurrence of these complexes firmly on the basis of X-ray crystallography (4), and now have established that the complexes are categorized in a group of novel substances which have simultaneous characteristics of novel surfactants, showing cmc's and the Krafft points different from those of their mother species (5,6). Especially cationic surfactants such as quaternary ammonium and pyridinium salts afford these complexes from aqueous media with varied phenolics, aromatic basic substances, and even nonpolar substances such as biphenyl and phenanthrene (1,2).…”

“…These crystalline surfactant molecular complexes (SMCs) are always produced from conventionally treated solubilized solution systems after attainment of solubilization equilibrium when the systems are allowed to stand under cool conditions (1)(2)(3). These solubilized solution systems are always accompanied by remarkable viscoelasticity.…”