Skip to main content
Journal cover image

Mechanochemical Activation of Covalent Bonds in Polymers with Full and Repeatable Macroscopic Shape Recovery.

Publication ,  Journal Article
Gossweiler, GR; Hewage, GB; Soriano, G; Wang, Q; Welshofer, GW; Zhao, X; Craig, SL
Published in: ACS macro letters
March 2014

Covalent mechanochemistry within bulk polymers typically occurs with irreversible deformation of the parent material. Here we show that embedding mechanophores into an elastomeric poly(dimethylsiloxane) (PDMS) network allows for covalent bond activation under macroscopically reversible deformations. Using the colorimetric mechanophore spiropyran, we show that bond activation can be repeated over multiple cycles of tensile elongation with full shape recovery. Further, localized compression can be used to pattern strain-induced chemistry. The platform enables the reversibility of a secondary strain-induced color change to be characterized. We also observe mechanical acceleration of a flex-activated retro-Diels-Alder reaction, allowing a chemical signal to be released in response to a fully reversible deformation.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

ACS macro letters

DOI

EISSN

2161-1653

ISSN

2161-1653

Publication Date

March 2014

Volume

3

Issue

3

Start / End Page

216 / 219

Related Subject Headings

  • 3406 Physical chemistry
  • 3403 Macromolecular and materials chemistry
  • 0306 Physical Chemistry (incl. Structural)
  • 0303 Macromolecular and Materials Chemistry
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Gossweiler, G. R., Hewage, G. B., Soriano, G., Wang, Q., Welshofer, G. W., Zhao, X., & Craig, S. L. (2014). Mechanochemical Activation of Covalent Bonds in Polymers with Full and Repeatable Macroscopic Shape Recovery. ACS Macro Letters, 3(3), 216–219. https://doi.org/10.1021/mz500031q
Gossweiler, Gregory R., Gihan B. Hewage, Gerardo Soriano, Qiming Wang, Garrett W. Welshofer, Xuanhe Zhao, and Stephen L. Craig. “Mechanochemical Activation of Covalent Bonds in Polymers with Full and Repeatable Macroscopic Shape Recovery.ACS Macro Letters 3, no. 3 (March 2014): 216–19. https://doi.org/10.1021/mz500031q.
Gossweiler GR, Hewage GB, Soriano G, Wang Q, Welshofer GW, Zhao X, et al. Mechanochemical Activation of Covalent Bonds in Polymers with Full and Repeatable Macroscopic Shape Recovery. ACS macro letters. 2014 Mar;3(3):216–9.
Gossweiler, Gregory R., et al. “Mechanochemical Activation of Covalent Bonds in Polymers with Full and Repeatable Macroscopic Shape Recovery.ACS Macro Letters, vol. 3, no. 3, Mar. 2014, pp. 216–19. Epmc, doi:10.1021/mz500031q.
Gossweiler GR, Hewage GB, Soriano G, Wang Q, Welshofer GW, Zhao X, Craig SL. Mechanochemical Activation of Covalent Bonds in Polymers with Full and Repeatable Macroscopic Shape Recovery. ACS macro letters. 2014 Mar;3(3):216–219.
Journal cover image

Published In

ACS macro letters

DOI

EISSN

2161-1653

ISSN

2161-1653

Publication Date

March 2014

Volume

3

Issue

3

Start / End Page

216 / 219

Related Subject Headings

  • 3406 Physical chemistry
  • 3403 Macromolecular and materials chemistry
  • 0306 Physical Chemistry (incl. Structural)
  • 0303 Macromolecular and Materials Chemistry