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Updated: Jul 12, 2025

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
Published on: March 8, 2019
Mechanosynthesis of Polyureas and Studies of Their Responses to Anions
Wahab K A Al-Ithawi1,2, Rammohan Aluru1, Artem V Baklykov3
1Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.
Abstract:
Polyureas (PUs) have already found wide practical applications, and various methods of their synthesis have been reported. In this manuscript, we wished to report the very first mechanochemical approach towards aromatic PUs via reactions between isomeric 2,2'-, 3,3'-, and 4,4'-diaminobiphenyls and triphosgene under solvent-free conditions following ball-milling. By using this synthetic approach, both PUs and azomethine-capped Pus were obtained. The fluorescence response of the above-mentioned PUs towards various anions in solutions were studied and selective fluorescence responses towards the hydroxyl and fluoride anions were observed.
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