Issue 5, 2011

Hydrogel nanocomposites as pressure-sensitive adhesives for skin-contact applications

Abstract

This study investigates the effects of monodisperse polystyrene nanoparticle fillers on the network formation, rheological properties and adhesion performance of hydrogel nanocomposites based on polyacrylamide and poly(acrylamide-hydroxyethyl methacrylate). We demonstrated a simultaneous increase in elasticity and tack of these humid composite materials. A 1H-NMR kinetic study showed quasi-total conversion of these monomers during the polymerization–reticulation process and the formation of inhomogeneities within the hydrogel network structure due to the difference in reactivity ratios of the comonomers: acrylamide (AM) and hydroxyethyl methacrylate (HEMA)(rAM = 0.41 ± 0.01 and rHEMA = 7.4 ± 0.3). The rheological properties of these materials were found to be affected by their chemical composition (HEMA content, presence of nanoparticles and heterogeneities). We investigated the adhesion properties of our materials using a probe test tack. Measurements were carried out on a human skin substitute to compare with metal and investigate the potential use of these hydrogel nanocomposites as dermatological patches. The adhesion energy was found to be related to the chemical composition and rheological properties of the hydrogels, as well as to the surface properties of both the adhesive and the substrate.

Graphical abstract: Hydrogel nanocomposites as pressure-sensitive adhesives for skin-contact applications

Article information

Article type
Paper
Submitted
07 Oct 2010
Accepted
29 Nov 2010
First published
07 Jan 2011

Soft Matter, 2011,7, 2025-2032

Hydrogel nanocomposites as pressure-sensitive adhesives for skin-contact applications

N. Baït, B. Grassl, C. Derail and A. Benaboura, Soft Matter, 2011, 7, 2025 DOI: 10.1039/C0SM01123A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements