Development of a Method for Blocking Polysodiumoxy(methyl)siloxane Obtained in an Alcohol Medium.

Marina A Obrezkova, Alina A Nesterkina, Aziz M Muzafarov

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Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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3 authors.

Marina A ObrezkovaEnikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), Profsoyuznaya Str. 70, Moscow 117393, Russia.

Alina A NesterkinaEnikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), Profsoyuznaya Str. 70, Moscow 117393, Russia.

Aziz M MuzafarovEnikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), Profsoyuznaya Str. 70, Moscow 117393, Russia.ORCID 0000-0002-3050-3253

Funding

This work was carried out with the financial support of the Russian Science Foundation 24-23-00565

6 · The paper itself

Abstract

Polysodiumoxy(methyl)siloxane is a highly functional polymer matrix that can be used for the preparation of both functional and non-functional polymers, including molecular brushes. To determine the molecular weight parameters of the matrix, as well as its chemical structure, it is necessary to develop an effective method of blocking functional (in our case, sodiumoxy) groups due to their high reactivity. At the same time, the blocking product should represent a complete non-functionalized replica of polysodiumoxy(methyl)siloxane. Since the obtained polysodiumoxy(methyl)siloxane can contain both sodium- and hydroxy groups in its composition, the presence of both types of functional groups should be considered in the blocking process. In this work, we investigated the blocking process of polysodiumoxy(methyl)siloxane and the influence of blocking conditions on the blocked product. We carried out several variants of blocking, which differed in the order and method of introduction of reagents, as well as in the temperature regime. The chemical structure and molecular weight characteristics of the obtained polymers were analyzed by

Indexed as

alkoxysodium saltsblocking processhydrolytic polycondensationmonosodiumoxy(methyl)(diethoxy)silanepolyfunctional matrixpolysodiumoxy(methyl)siloxaneprotective group

Identifiers

PMID40808073

DOI10.3390/polym17152023

PMCPMC12349120

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