What question did this study set out to answer?

To enhance the stiffness and toughness of brittle, unfilled elastomers and directly visualize internal bond rupture during crack propagation.

April 10, 2014ScienceOpen Access

Toughening Elastomers with Sacrificial Bonds and Watching Them Break

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To enhance the stiffness and toughness of brittle, unfilled elastomers and directly visualize internal bond rupture during crack propagation.
Synthesized unfilled elastomer networks incorporating variable fractions of isotropically prestretched polymer chains designed to act as sacrificial bonds.
Integrated mechanochemically active chemoluminescent cross-linkers that emit light upon chain scission to optically map bond rupture in real time.
Increased material stiffness up to 4 MPa and fracture toughness up to 9 kJ/m² through sacrificial energy dissipation before total failure.
Mapped spatial and temporal profiles of internal bond ruptures in the damage zone ahead of a propagating crack front using chemiluminescence.

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Implication

Experimental study demonstrates marked reinforcement of unfilled elastomers via sacrificial bonds, indicating a viable strategy for designing resilient soft materials.

Cite This Study

Ducrot et al. (2014) studied this question.

synapsesocial.com/papers/69d9ec7c5e5bcb4e3b838455 https://doi.org/10.1126/science.1248494

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Implication

Experimental study demonstrates marked reinforcement of unfilled elastomers via sacrificial bonds, indicating a viable strategy for designing resilient soft materials.

Toughening Elastomers with Sacrificial Bonds and Watching Them Break

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Discussion

Implication

Cite This Study

Toughening Elastomers with Sacrificial Bonds and Watching Them Break

Key Points

Discussion

Implication

Cite This Study

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