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FUNCTIONAL ORGANOSILICON SUBSTANCES AS STABILIZERS OF POLYMERIC SUSPENSIONS

https://doi.org/10.32362/2410-6593-2016-11-2-5-16

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Abstract

The review presents schemes for obtaining homologous series of the linear α,ω-carbofunctional oligodimethylsiloxanes with the silicone chain length from 6 to 60 siloxane units containing carboxydecyl, aminopropyl and glycidoxypropyl groups at the chain ends allowing to obtain organosilicon surfactants with reproducible structure and properties. Data on the surfactant colloidchemical properties and kinetic regularities of styrene polymerization in their presence are provided. Systematic research of heterophase styrene polymerization kinetic regularities in the presence of water-insoluble α,ω-carbofunctional oligodimethylsiloxane allowed to formulate the fundamental differences of polymerization kinetic regularities from those observed in the presence of water-soluble surfactants. The mechanism of interfacial adsorption layers formation with water-insoluble α,ω-carbofunctional oligodimethylsiloxanes on the surface of monomer drops and polymer-monomeric particles was considered. This mechanism consists in the forced surfactant replacement by the formed polymer (because of their incompatibility) to the interfacial adsorption layer and in the formation of the surfactant supermolecular structures. The latter in total with the polymer provide its high durability.

About the Authors

I. А. Gritskova
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


D. I. Shragin
N.S. Enikolopov Institute of Synthetic Polymer Materials of Russian Academy of Sciences, A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
Russian Federation

Moscow, 117393 Russia

Moscow, 119991 Russia



S. М. Levachev
M.V. Lomonosov Moscow State University
Russian Federation
Moscow, 119991 Russia


А. А. Ezhova
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


Е. V. Milushkova
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


V. М. Kopylov
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


S. А. Gusev
Science Research Institute of Physical-Chemical Medicine
Russian Federation
Moscow, 119435 Russia


N. I. Prokopov
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


N. A. Lobanova
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


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For citation:


Gritskova I.А., Shragin D.I., Levachev S.М., Ezhova А.А., Milushkova Е.V., Kopylov V.М., Gusev S.А., Prokopov N.I., Lobanova N.A. FUNCTIONAL ORGANOSILICON SUBSTANCES AS STABILIZERS OF POLYMERIC SUSPENSIONS. Fine Chemical Technologies. 2016;11(2):5-16. https://doi.org/10.32362/2410-6593-2016-11-2-5-16

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