Synthesis of Vinyl-Containing Polydimethylsiloxane in An Active Mediumстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 10 апреля 2024 г.
Аннотация:This research deals with the synthesis of copoly(methylvinyl)(dimethyl)siloxanes by thecopolycondensation of dimethyldiethoxy- and methylvinyldimethoxysilane in an active medium,followed by thermal condensation in a vacuum. We achieved a range of copolymers exhibiting finelytuned molecular weights spanning between 1500 and 20,000 with regulated functional methylvinylsiloxaneunits. Analysis of the microstructure showed that the copolymerization predominantlyformed products demonstrating a random distribution of units (R~1). However, an increase in thecontent of vinyl-containing monomers increases the R parameter, indicating an enhanced tendencytowards alternating linkages within the copolymer matrix. РНФ 19-73-30028Mass spectra were collected using the equipment of the Center forMolecular Composition Studies supported by the Ministry of Science and Higher Education of theRussian Federation (Contract/agreement No. 075-03-2023-642).