Biomaterials, Biodegradables and Biomimetics Research Group

Papers in Scientific Journals

Unraveling the Effect of the Hydration Level on the Molecular Mobility of Nanolayered Polymeric Systems

Abstract

This work investigates the influence of the hydration level on the molecular mobility and glass transition dynamics of free-standing chitosan/alginate (CHT/ALG) nanolayered systems. Non-conventional dynamic mechanical analysis identified two relaxation processes assigned to the α-relaxation of the two biopolymers, respectively CHT and ALG, when immersed in water/ethanol mixtures. This phenomenon explains the shape memory properties of the multilayered systems induced by hydration, thus constituting promising smart materials that would be of paramount importance in a plethora of research fields, including in the biomedical and biotechnological fields.

Journal
Macromolecular Rapid Communications
Volume
36
Issue
4
Pagination
405-412
Publisher
WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URL
http://onlinelibrary.wiley.com/doi/10.1002/marc.201400568/abstract
Keywords
Glass transition, layer-by-layer multilayered systems, molecular mobility, nanolayer confinement, shape-memory polymers
Rights
Restricted Access
Peer Reviewed
Yes
Status
published
Year of Publication
2015
DOI
10.1002/marc.201400568
Date Published
2015-01-12
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