Adsorbed monomer analog of a common polyelectrolyte

Svetlana A. Sukhishvili, Steve Granick

Research output: Contribution to journalArticlepeer-review


The monomer analog of a common water-soluble charged macromolecule shows surface tilt and cooperative adsorption that would be expected for larger surfactant molecules - the small organic ion behaves as an embryonic surfactant. Yet the organic ion competes with inorganic ions (Na+, Mg++, etc.) for access to the surface, and therefore its tilt increases with the size of the competing coion. Similar ordering of charged units along a polyelectrolyte chain would be sterically frustrated. This suggests a new contribution to surface energetics when a charged macromolecule adsorbs.

Original languageEnglish (US)
Pages (from-to)3646-3649
Number of pages4
JournalPhysical review letters
Issue number16
StatePublished - 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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