Mechanics of elastomeric molecular composites

Published on Sep 11, 2018in Proceedings of the National Academy of Sciences of the United States of America11.205
· DOI :10.1073/PNAS.1807750115
Pierre Millereau2
Estimated H-index: 2
(CNRS: Centre national de la recherche scientifique),
Etienne Ducrot11
Estimated H-index: 11
(CNRS: Centre national de la recherche scientifique)
+ 4 AuthorsCostantino Creton67
Estimated H-index: 67
(Hokkaido University)
A classic paradigm of soft and extensible polymer materials is the difficulty of combining reversible elasticity with high fracture toughness, in particular for moduli above 1 MPa. Our recent discovery of multiple network acrylic elastomers opened a pathway to obtain precisely such a combination. We show here that they can be seen as true molecular composites with a well–cross-linked network acting as a percolating filler embedded in an extensible matrix, so that the stress–strain curves of a family of molecular composite materials made with different volume fractions of the same cross-linked network can be renormalized into a master curve. For low volume fractions (
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