Interactions of polyelectrolytes with the lyotropic liquid crystalline system hexadecyltrimethylammonium bromide/decanol/water

Autor:	Raymond A. Mackay, Stig E. Friberg, Joachim Kötz, Sabine Kosmella
Rok vydání:	1996
Předmět:	Polarized light microscopy Crystallography Colloid and Surface Chemistry Pulmonary surfactant Liquid crystal Chemistry Lyotropic Cationic polymerization Lamellar structure Polyelectrolyte Macromolecule
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. 112:227-231
ISSN:	0927-7757
DOI:	10.1016/0927-7757(95)03420-x
Popis:	The influence of oppositely charged polyelectrolytes on the interlayer spacing of the lamellar liquid crystalline system hexadecyltrimethylammonium bromide/decanol/water was investigated by means of small angle X-ray diffraction and polarized microscopy. It could be demonstrated that a liquid crystalline phase was still formed by introducing a cationic polymer of low molecular weight into the lamellar structure. A disordering of the preformed structure and a decrease of the interlayer spacing occurred via penetration of the macromolecule between the hydrocarbon chains of the surfactant molecules. By using a “penetration” model for the disordering phenomena, “folded” and “telescoped” structures are discussed. The polyanion in a polyanion/polycation mixture gave the same structural change as when added alone.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::813b6ef515153ee348898838cfa86979 https://doi.org/10.1016/0927-7757(95)03420-x Zobrazit plný text záznamu Full Text from ScienceDirect