Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"mechanochromism"”.
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Controlling and Exploiting Spiropyran-based Mechanochromism
… mechanophore and expanding our control of mechanochromism </p><p>from the single-molecule to device scale.</p><p>First, we report the effect of substituents on spiropyran derivatives substituted</p><p>with H, Br, or NO2 para to the breaking spirocyclic C− O bond using single …
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Multifunctional systems with polymer actuators : mechanochromism and peristalic pumping
The mission of the ISN is to explore the long-range vision of the role of nanotechnology in the future of soldier protection. Unprecedented survivability will arise from the cohesive and comprehensive coordination of the functions and interactions of each technology. The present work approaches …
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Mechanochromism and Strain-Induced Crystallization in Thiol-yne-derived Stereoelastomers
… tensile tests reveal correlations between mechanochromism, SH, and SIC, which are each strain rate-dependent. When mechanochromic films are stretched slowly to the point of mechanophore activation, the covalently-tethered mechanophore remains trapped in a force-activated state, even after …
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Towards Mechanochromic Devices using Biocompatible Hydroxypropyl Cellulose
… process (planetary centrifugal mixing), the mechanochromism of HPC is reported in the viscoelastic solid-like (gel) state for the first time. Mouldable as a continuous unsupported solid, while retaining the shear-thinning non-Newtonian response of HPC, the mechanochromic relaxation time is …
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Design and synthesis of mechanoresponsive materials and multivalent polymer-peptide conjugates
… relationships which govern naphthopyran mechanochromism. The third chapter of this thesis details the remote generation of light using high-intensity focused ultrasound (HIFU) as a remote force trigger for a dioxetane based mechanophore. Remotely generating light is potentially useful in …
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Control of mechanochromic reactions in a polymer matrix
… not predicted by simulation, also demonstrated mechanochromism in the experiments. The mechanical reactivity of the three active NP mechanophores is further investigated by measuring the absorbance change at different stress values. The mechanical reactivity of NP mechanophores somewhat …
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Spiropyrans as color-generating mechanophores
Due to the size scale of the molecules they work with, chemists are normally limited to indirect means of inducing and controlling chemical reactions. Sometimes, the inherent reactivity and structure of the reactants and the properties of the products such as thermodynamic stability can be relied …