Abstract
Metathesis polymerization of tricyclononenes containing tri(n-alkoxy)silyl substituents with long n-alkyl fragments (from six to ten carbon atoms) and addition polymerization of tri(n-decyloxy)silyltricyclononene were investigated. Polymerization conditions were found that make it possible to synthesize high-molecular-weight products (Mw more than 5×105) with desired yields (75–90%). The resulting polymers were characterized by NMR spectroscopy, X-ray phase analysis, differential scanning calorimetry, and thermogravimetric analysis. The gas transport properties of a polymer based on tri(n-decyloxy)silyltricyclononene obtained by metathesis polymerization were studied. It was shown that this polymer is characterized by a high separation selectivity with respect to the n-butane/methane gas pair (44).
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Funding
The synthesis of metathesis polymers was carried out within the framework of the State Program of Topchiev Institute of petrochemical synthesis of the Russian Academy of Sciences. The study of the gas transport properties and the synthesis of the addition polymer were supported by the grant of the President of the Russian Federation (no. МK-1514.2022.1.3).
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Alentiev, D.A., Starannikova, L.E. & Bermeshev, M.V. Polymerization of Tricyclononenes Contaning Trialkoxysilyl Substituents with Long Alkyl Fragments. Russ J Appl Chem 95, 1336–1346 (2022). https://doi.org/10.1134/S1070427222090087
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DOI: https://doi.org/10.1134/S1070427222090087