Mechanically Induced Bright Luminescence from 1,2‐Dioxetane Containing PDMS Boosted by Fluoroboron Complex as an In‐Chain Fluorophore,Macromolecular Rapid Communications

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Mechanically Induced Bright Luminescence from 1,2‐Dioxetane Containing PDMS Boosted by Fluoroboron Complex as an In‐Chain Fluorophore
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2020-12-21 , DOI: 10.1002/marc.202000575
Yuan Yuan ₁ , Baohua Di ₁ , Yulan Chen ₁

Affiliation

Improving mechanochemiluminescent (MCL) sensitivity of 1,2‐dioxetane containing polymers is important for the applications of stress‐reporting soft materials. Herein, a series of MCL poly(dimethylsiloxane) (PDMS) have been synthesized by simultaneously incorporating difluoroboron β‐diketonate dye and 1,2‐dioxetane as the co‐crosslinkers to tune the energy transfer process across polymer chains. By covalently linked fluoroboron complex in PDMS network, the aggregation of the complex is overcome. Owing to its excellent opto‐physical properties, this fluoroboron complex is shown to be an effective in‐chain fluorophore to effectively enhance the chemiluminescence from polymeric 1,2‐dioxetane that is broken either thermally or mechanically. Studies on the optomechanical properties of these PDMS show that MCL intensity is increased with the concentration of fluoroboron complex and the wavelength of the emission is shifted. The results of the present study appear to be broadly useful for designing elastomeric networks with chemiluminescent property not only attractive for optical technology, but also useful for damage self‐reporting.

更新日期：2020-12-21

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