Unexpected formation of novel two-component gels comprising of glycoluril carboxylic acid amides and imidazole: Synthesis and morphologyстатья
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Дата последнего поиска статьи во внешних источниках: 12 сентября 2019 г.
Авторы:
Baranov Vladimir V.,
Baganova Anastasiya A.,
Chikunov Ilya E.,
Karnoukhova Valentina A.,
Kravchenko Angelina N.
Аннотация:New gelling agents have been discovered: glycoluril carboxylic acid amides, giving two-component gels with imidazole. First, the one-pot, two step reaction of glycoluril carboxylic acids, CDI and various amines was investigated for the preparation of gels and it was found that the reaction mixtures were gelled in dry DMF during the preparation of some amides. The conditions of the gel-sol-gel transitions were found. The morphology of the xerogels was studied by SEM. The structure of the xerogels is constructed from interlocked rods or from interlaced curved fibres. Self-organization in the co-crystals of amides with H2O or imidazole was detected. The molecules of the co-crystals of amides with H2O are self-assembled into homochiral tapes. (C) 2019 Elsevier Ltd. All rights reserved.