10.1021/ja039830d.s001
Jinhan Cho
Jinhan
Cho
John F. Quinn
John F.
Quinn
Frank Caruso
Frank
Caruso
Fabrication of Polyelectrolyte Multilayer Films Comprising Nanoblended
Layers
American Chemical Society
2004
poly
PAA
PAH
pH
blend solution
blend solution composition
film thickness
Polyelectrolyte Multilayer Films Comprising Nanoblended Layers Polyelectrolyte
PSS
blend adsorption solution
2004-03-03 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Fabrication_of_Polyelectrolyte_Multilayer_Films_Comprising_Nanoblended_Layers/3348226
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).