Polymerization of wormlike micelles induced by hydrotropic salt

Shiyong Liu, Yamaira I. González, Dganit Danino, Eric W. Kaler

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

Addition of the hydrotropic salt sodium tosylate (TSNa) to solutions of a polymerizable cationic surfactant, methacryloyloxyundecyltrimethylammonium bromide (MUTB), leads to a transition from spherical to wormlike micelles about 40 nm in length. The wormlike micelles were successfully polymerized to yield stable, single-phase solutions of polymerized micelles. The polymerized wormlike micelles were several hundred nanometers long, although their cross-sectional radius remained unchanged (∼2 nm). The spherical to wormlike micelle transition, and the wormlike micelles polymerized at different molar ratios of TSNa to MUTB, were characterized using quasi-elastic and static light scattering, small-angle neutron scattering, NMR, and cryogenic transmission electron microscopy.

Original languageEnglish (US)
Pages (from-to)2482-2491
Number of pages10
JournalMacromolecules
Volume38
Issue number6
DOIs
StatePublished - Mar 22 2005

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