Epoxy oligomers based on eugenol cyclotriphosphazene derivatives |
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| Authors: | V. V. Kireev N. S. Bredov Yu. V. Bilichenko K. A. Lysenko R. S. Borisov V. P. Chuev |
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| Affiliation: | (1) Mendeleev University of Chemical Technology, Miusskaya pl. 9, Moscow, 125047, Russia;(2) Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russia;(3) Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991, Russia;(4) ZAO VladMiVa, ul. Michurina 39a, Belgorod, 308002, Russia |
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| Abstract: | Oligomers of hexakis(4-allyl-2-methoxyphenoxy)cyclotriphosphazene have been synthesized and their molecular structure studied by X-ray and NMR analysis. The nonplanar character of a phosphazene cycle is established, and the bond lengths P-N and valence angles N-P-N are shown to change in narrow ranges (1.5771–1.5894 Å and 117.80°–118.37°, respectively). During epoxidation of hexakis(4-allyl-2-methoxyphenoxy)cyclotriphosphazene by m-chloroperbenzoic acid or peracetic acid, in addition to hexaepoxy derivatives, the corresponding dimer is formed due to partial intermolecular interaction of epoxy groups. |
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