Issue 32, 2012
From the journal:

Soft Matter

AFM adhesion imaging for the comparison of polyelectrolyte complexes and polyelectrolyte multilayers†

Caroline Ankerfors,ab   Torbjörn Petterssonbc  and  Lars Wågberg*bc  

* Corresponding authors

a Eka Chemicals, 445 80 Bohus, Sweden

b KTH Royal Institute of Technology, Department of Fibre and Polymer Technology, 100 44 Stockholm, Sweden
E-mail: wagberg@kth.se
Tel: +46 8 790 82 94

c KTH Royal Institute of Technology, Wallenberg Wood Science Center, 100 44 Stockholm, Sweden

Abstract

The adhesion and topography of dry surfaces treated with polyelectrolyte complexes (PECs) and multilayers (PEMs) of PAH/PAA or CPAM/silica nanoparticles were studied using AFM adhesion mapping. PEMs gave higher adhesion than did PECs for the PAH/PAA system, but adhesion did not differ significantly between PEMs and PECs for the CPAM/silica system. The latter system displayed multiple release patterns, interpreted as disentanglements and tentatively ascribed to nanoparticle presence. AFM adhesion mapping is valuable for analysing PEC and PEM. The measurements should, however, be combined with separate force measurements for a more complete picture of the adhesion.

Graphical abstract: AFM adhesion imaging for the comparison of polyelectrolyte complexes and polyelectrolyte multilayers

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C2SM26096D
Article type
Communication
Submitted
10 May 2012
Accepted
19 Jun 2012
First published
12 Jul 2012

Soft Matter, 2012,8, 8298-8301

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AFM adhesion imaging for the comparison of polyelectrolyte complexes and polyelectrolyte multilayers

C. Ankerfors, T. Pettersson and L. Wågberg, Soft Matter, 2012, 8, 8298 DOI: 10.1039/C2SM26096D

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