Molecular mobility in micellar complexes of a nonionic surfactant and the poly(acrylic acid)-based hydrogel
作者： V. Yu. Baranovskii , V. Ganev , I. I. Barashkova , L. L. Yasina , A. M. Wasserman
DOI: 10.1134/S1061933X11010030
关键词: Ethylene glycol 、 Pulmonary surfactant 、 Molecule 、 Micelle 、 Polymer 、 Polymer chemistry 、 Spin probe 、 Chemistry 、 Acrylic acid 、 Polyelectrolyte
摘要: The interaction between the polyelectrolyte gel of crosslinked poly(acrylic acid) (PAA) and nonionic surfactant Brij 58 based on poly(ethylene glycol) (C16H33(CH2CH2O)20OH) is studied. It established that acid)-surfactant complexes are formed. Nondissociated carboxyl groups oxygen atoms involved in complexation. Surfactant micelles a kind bridge connects polymer chains. presence decreases equilibrium swelling hydrogel. spin probe method employed to determine local mobility hydrocarbon core micelle complex. was shown independent hydrogel crosslink density much lower acidic than alkaline media. In media, more molecules complexation However, even cannot leave hydrogel, while probes located at with present external aqueous medium. prospects for applying considered systems as carriers controlled release drugs discussed.
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