聚脲的机械合成及其对阴离子响应的研究

Mechanosynthesis of Polyureas and Studies of Their Responses to Anions.

作者信息

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

机构信息

Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.

Energy and Renewable Energies Technology Center, University of Technology-Iraq, Baghdad 10066, Iraq.

出版信息

Polymers (Basel). 2023 Oct 20;15(20):4160. doi: 10.3390/polym15204160.

DOI:10.3390/polym15204160

PMID:37896404

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10611254/

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.

摘要

聚脲（PUs）已经有广泛的实际应用，并且已经报道了其各种合成方法。在本手稿中，我们希望报道通过在球磨后的无溶剂条件下，异构的2,2'-、3,3'-和4,4'-二氨基联苯与三光气之间的反应，对芳香族聚脲进行的首次机械化学方法。通过使用这种合成方法，既获得了聚脲，也获得了甲亚胺封端的聚脲。研究了上述聚脲对溶液中各种阴离子的荧光响应，并观察到对羟基和氟阴离子的选择性荧光响应。