Fabrication of Polyelectrolyte Multilayer Films Comprising Nanoblended Layers

Jinhan Cho, John F. Quinn, Frank Caruso

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Polyelectrolyte multilayer thin films were prepared via the alternate deposition of poly(allylamine hydrochloride) (PAH) and a blend of poly(acrylic acid) (PAA) and poly(styrenesulfonate) (PSS). When the pH of the blend solution was 3.5, the presence of PAA in this solution significantly increased the total film thickness. With only 10 wt % PAA in the blend adsorption solution, a large increase in film thickness was observed (92 nm cf. 18 nm). It was also demonstrated that the total amount of PSS adsorbed was enhanced by the presence of PAA in the blend solution, showing that the blend solution composition influenced that of the multilayer films. Thin films prepared with nanoblended layers also showed improved pH stability, because they exhibited reduced film rearrangement upon exposure to acidic conditions (pH = 2.5).

Original languageEnglish
Pages (from-to)2270-2271
Number of pages2
JournalJournal of the American Chemical Society
Volume126
Issue number8
DOIs
Publication statusPublished - 2004 Mar 3
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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