Multicolor mechanochromism of a multinetwork elastomer that can distinguish between low and high stress

Wang, Taisheng; Wang, Haoxiang; Shen, Lei; Zhang, Na

doi:10.1039/d1py00637a

Cited by 15 publications

(19 citation statements)

References 53 publications

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“…The force sensitivity of the elastomer was enhanced by pre-stretching the first network during multiple swelling polymerisations. 63 An applied tensile strength of low intensity ( i.e. , 2 MPa) induced a deformation of the first AMA network, and an increase in the applied strength affected both the pre-stretched first network and the coiled second network for RH activation.…”

Section: Blending Distinct Mechanophores For Multi-chromic Transitionmentioning

confidence: 99%

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Mechanochromic polymers with a multimodal chromic transition: mechanophore design and transduction mechanism

2022

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Section: Blending Distinct Mechanophores For Multi-chromic Transitionmentioning

confidence: 99%

Section: Force-dependent Multicolour Changes Of Mechanophores In Diff...mentioning

confidence: 99%

Mechanochromic polymers with a multimodal chromic transition: mechanophore design and transduction mechanism

2022

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“…[ 41 ] These Diels–Alder adduct OFPs proved valuable for various applications, including 3D fluorescent damage mapping with high spatial resolution, precise quantification of bond scission events, and qualitative OFP‐assisted fractography. [ 42 ]…”

Section: Acene‐ and Rylene‐based Optical Force Probes For Polymer Mec...mentioning

confidence: 99%

The Mechanochemical Synthesis and Activation of Carbon‐Richπ‐Conjugated Materials

et al. 2022

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Dedicated to the 75th birthday of Klaus Müllen.Mechanochemistry uses mechanical force to break, form, and manipulate chemical bonds to achieve functional transformations and syntheses. Over the last years, many innovative applications of mechanochemistry have been developed. Specifically for the synthesis and activation of carbon-rich 𝝅-conjugated materials, mechanochemistry offers reaction pathways that either are inaccessible with other stimuli, such as light and heat, or improve reaction yields, energy consumption, and substrate scope. Therefore, this review summarizes the recent advances in this research field combining the viewpoints of polymer and trituration mechanochemistry. The highlighted mechanochemical transformations include 𝝅-conjugated materials as optical force probes, the force-induced release of small dye molecules, and the mechanochemical synthesis of polyacetylene, carbon allotropes, and other 𝝅-conjugated materials.

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“…In another work, multi‐color‐changing was realized by introducing various mechanochromophores into different networks of a multinetwork system, where an anthracene‐maleimide adduct was introduced into the first‐network while Rh was cross‐linked in the second‐network. [ 200 ] Upon stretching, the material showed blue fluorescence and further to red‐violet with increasing tensile stress. This was reported to be the result of the anthracene derivative forming initially from anthracene‐maleimide adduct dissociation prior to Rh activation in the ring‐open form, with blue fluorescence and red fluorescence generated for the former and latter, respectively.…”

Section: Applicationsmentioning

confidence: 99%

Mechanochromophore‐Linked Polymeric Materials with Visible Color Changes

Qiu

Scofield

Gurr

et al. 2022

Macromol. Rapid Commun.

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Mechanical force as a type of stimuli for smart materials has obtained much attention in the past decade. Color‐changing materials in response to mechanical stimuli have shown great potential in the applications such as sensors and displays. Mechanochromophore‐linked polymeric materials, which are a growing sub‐class of these materials, are discussed in detail in this review. Two main types of mechanochromophores which exhibit visible color change, summarized herein, involve either isomerization or radical generation mechanisms. This review focuses on their synthesis and incorporation into polymer matrices, the type of mechanical force used, factors affecting the mechanochromic properties, and their applications.

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Multicolor mechanochromism of a multinetwork elastomer that can distinguish between low and high stress

Abstract: Mechanochromic polymers (MCPs), which response to mechanical stimuli by optical signal changing, are regarded to apply in smart materials such as force sensors. Although rapid progress in the MCPs have...

Cited by 15 publications

References 53 publications

Mechanochromic polymers with a multimodal chromic transition: mechanophore design and transduction mechanism

Mechanochromic polymers with a multimodal chromic transition: mechanophore design and transduction mechanism

The Mechanochemical Synthesis and Activation of Carbon‐Richπ‐Conjugated Materials

Mechanochromophore‐Linked Polymeric Materials with Visible Color Changes

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