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Dyuzhikova, Yulia S; Anisimov, Anton A; Peregudov, Alexander S; Buzin, Mikhail I; Nikiforova, Galina G; Vasil'ev, Viktor G; Kostrov, Sergey A; Buzin, Alexander I; Stupnikov, Alexei A; Malakhova, Yulia N; Shchegolikhina, Olga I; Muzafarov, Aziz M
Polymers, 01/2022, Volume: 14, Issue: 2Journal Article
New non-crystallizable low-dispersity star-shaped polydimethylsiloxanes (PDMS) containing stereoregular -tetra(organo)(dimethylsiloxy)cyclotetrasiloxanes containing methyl-, tolyl- and phenyl-substituents at silicon atoms and the mixture of four stereoisomers of tetraphenyl(dimethylsiloxy)cyclotetrasiloxane as the cores were synthesized. Their thermal and viscous properties were studied. All synthesized compounds were characterized by a complex of physicochemical analysis methods: nuclear magnetic resonance (NMR), FT-IR spectroscopy, gel permeation chromatography (GPC), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), viscometry in solution, rheometry, and Langmuir trough study.
