Mechanosynthesis of Polyureas and Studies of Their Responses to Anions

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'-diamino...

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Published in:Polymers 2023-10, Vol.15 (20), p.4160
Main Authors: Al-Ithawi, Wahab K A, Aluru, Rammohan, Baklykov, Artem V, Khasanov, Albert F, Kovalev, Igor S, Nikonov, Igor L, Kopchuk, Dmitry S, Novikov, Alexander S, Santra, Sougata, Zyryanov, Grigory V, Ranu, Brindaban C
Format: Article
Language:English
Subjects:
Analysis
Anions
Aqueous solutions
Ball milling
Binding sites
Chemical synthesis
Chromatography
Fluorescence
Fluorides
Hydrogen
Identification and classification
Methods
Physiology
Polymers
Polyureas
Properties
Solvents
Stainless steel
Urea
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Summary: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.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15204160