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Issue 75, 2016
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Elastic coupling between spin-crossover particles and cellulose fibers

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Abstract

Composite materials made of cellulose fibers and spin crossover micro-particles were investigated by magnetic measurements and dynamic mechanical analysis (DMA). The storage modulus of the cellulose handsheet (0.6 GPa at room T) is significantly enhanced in the composite (1.7 GPa). The latter also displays a reversible increase of ca. 10% when switching the magnetic spin state of the particles from the low spin (LS) to the high spin (HS) form. Around the spin transition temperature a loss modulus peak is also observed, highlighting the strong viscoelastic coupling between the particles and the cellulose matrix. These results pave the way for the development of a novel family of actuator materials based on spin crossover–polymer composites.

Graphical abstract: Elastic coupling between spin-crossover particles and cellulose fibers

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Article information


Submitted
25 Jul 2016
Accepted
17 Aug 2016
First published
17 Aug 2016

Chem. Commun., 2016,52, 11267-11269
Article type
Communication

Elastic coupling between spin-crossover particles and cellulose fibers

S. Rat, V. Nagy, I. Suleimanov, G. Molnár, L. Salmon, P. Demont, L. Csóka and A. Bousseksou, Chem. Commun., 2016, 52, 11267
DOI: 10.1039/C6CC06137K

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