Additive manufacturing of highly entangled polymer networks

Abhishek P. Dhand; Matthew D. Davidson; Hannah M. Zlotnick; Thomas J. Kolibaba; Jason P. Killgore; Jason A. Burdick

doi:10.1126/science.adn6925

journal article Aug 02, 2024

Additive manufacturing of highly entangled polymer networks

Abhishek P. Dhand

Matthew D. Davidson

Hannah M. Zlotnick

Thomas J. Kolibaba Jason P. Killgore

Jason A. Burdick

Science Vol. 385 No. 6708 pp. 566-572 · American Association for the Advancement of Science (AAAS)

View at Publisher Save 10.1126/science.adn6925

Abstract

Incorporation of polymer chain entanglements within a single network can synergistically improve stiffness and toughness, yet attaining such dense entanglements through vat photopolymerization additive manufacturing [e.g., digital light processing (DLP)] remains elusive. We report a facile strategy that combines light and dark polymerization to allow constituent polymer chains to densely entangle as they form within printed structures. This generalizable approach reaches high monomer conversion at room temperature without the need for additional stimuli, such as light or heat after printing, and enables additive manufacturing of highly entangled hydrogels and elastomers that exhibit fourfold- to sevenfold-higher extension energies in comparison to that of traditional DLP. We used this method to print high-resolution and multimaterial structures with features such as spatially programmed adhesion to wet tissues.

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Metrics

139

Citations

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References

Details

Published: Aug 02, 2024
Vol/Issue: 385(6708)
Pages: 566-572

Authors

A

Abhishek P. Dhand

Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.

M

Matthew D. Davidson

BioFrontiers Institute & Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80303, USA.

H

Hannah M. Zlotnick

BioFrontiers Institute & Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80303, USA.

T

Thomas J. Kolibaba

Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, CO 80305, USA.

J

Jason P. Killgore

Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, CO 80305, USA.

J

Jason A. Burdick

Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.; BioFrontiers Institute & Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80303, USA.

Cite This Article

Abhishek P. Dhand, Matthew D. Davidson, Hannah M. Zlotnick, et al. (2024). Additive manufacturing of highly entangled polymer networks. Science, 385(6708), 566-572. https://doi.org/10.1126/science.adn6925

Additive manufacturing of highly entangled polymer networks

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