Journal ArticleDOI
"Flex-activated" mechanophores: using polymer mechanochemistry to direct bond bending activation.
TLDR
Studies in mechanochemical transduction that probe the activation of bonds orthogonal to an elongated polymer main chain are described, a first step toward mechanophores capable of releasing side-chain functionalities without inherently compromising the overall macromolecular architecture.Abstract:
We describe studies in mechanochemical transduction that probe the activation of bonds orthogonal to an elongated polymer main chain. Compression of mechanophore-cross-linked materials resulted in the release of small molecules via cleavage of covalent bonds that were not integral components of the elongated polymer segments. The reactivity is proposed to arise from the distribution of force through the cross-linking units of the polymer network and subsequent bond bending motions that are consistent with the geometric changes in the overall reaction. This departure from contemporary polymer mechanochemistry, in which activation is achieved primarily by force-induced bond elongation, is a first step toward mechanophores capable of releasing side-chain functionalities without inherently compromising the overall macromolecular architecture.read more
Citations
More filters
Journal ArticleDOI
From responsiveness in biological matter to functional materials: Analogies and inspiration towards the systematic design and synthesis of new smart materials and systems
TL;DR: In this article , the most relevant functional materials being developed in the last decades are presented with the related mathematical models, and their underlying driving mechanisms are compared with those observable in nature.
Journal ArticleDOI
Mechanochemistry of Cubane.
Liqi Wang,Xujun Zheng,Tatiana B. Kouznetsova,T. Yen,Tetsu Ouchi,Cameron L. Brown,Stephen L. Craig +6 more
TL;DR: In this paper , the mechanochemical reactivity of cubane was explored for three regioisomers with 1,2-, 1,3-, and 1,4-substituted pulling attachments, and the single observed product of the force-coupled reaction was a thermally inaccessible syn-tricyclooctadiene.
Journal ArticleDOI
Puncture-resistant self-healing polymers with multi-cycle adhesion and rapid healability.
TL;DR: Li et al. as discussed by the authors presented a series of tailored urea-modified poly(dimethylsiloxane)-based self-healing polymers (U-PDMS-SPs) that exhibit excellent puncture-resistant properties, fast autonomous selfhealing, multi-cycle adhesion capabilities, and well-tunable mechanical properties.
Journal ArticleDOI
Off‐center Mechanophore Activation in Block Copolymers
TL;DR: In this article , a gem-dichlorocyclopropane (gDCC) embedded linear chain is prepared and extended with a poly(methyl methacrylate) block.
Journal ArticleDOI
Mechanochemical Degradation and Recycling of Synthetic Polymers
TL;DR: In this paper , the authors summarize recent progress in mechanochemical degradation and recycling of synthetic polymers, including both commercial polymers and those designed for more efficient mechanochemical degradations.
References
More filters
Journal ArticleDOI
Force-induced activation of covalent bonds in mechanoresponsive polymeric materials
Douglas A. Davis,Andrew Hamilton,Jinglei Yang,Jinglei Yang,Lee D. Cremar,Dara Van. Gough,Stephanie L. Potisek,Mitchell T. Ong,Paul V. Braun,Todd J. Martínez,Todd J. Martínez,Scott R. White,Jeffrey S. Moore,Nancy R. Sottos +13 more
TL;DR: It is found that pronounced changes in colour and fluorescence emerge with the accumulation of plastic deformation, indicating that in these polymeric materials the transduction of mechanical force into the ring-opening reaction is an activated process.
Journal ArticleDOI
Mechanically-induced chemical changes in polymeric materials
Mary M. Caruso,Douglas A. Davis,Qilong Shen,Susan A. Odom,Nancy R. Sottos,Scott R. White,Jeffrey S. Moore +6 more
TL;DR: The purpose of this review is to broadly survey the mechanical to chemical relationships between synthetic polymers, and to consider the I-O relationship as an energy transduction process for designing stimuli-responsive materials.
Journal ArticleDOI
Mechanochemistry: the mechanical activation of covalent bonds.
TL;DR: A survey of the classical works in mechanochemistry is given and the key mechanochemical phenomena into perspective with recent results from atomic force microscopy and quantum molecular dynamics simulations are put into perspective.
Journal ArticleDOI
From mechanism to mouse: a tale of two bioorthogonal reactions.
TL;DR: Work in the laboratory led to the development of two bioorthogonal transformations that exploit the azide as a small, abiotic, and bioinert reaction partner: the Staudinger ligation and strain-promoted azide–alkyne cycloaddition.
Journal ArticleDOI
Mechanical processes in biochemistry.
TL;DR: This review provides the conceptual framework to understand the role of mechanical force in biochemistry.