Surface properties and structure of organofluorosilicon polymers based on organotrialkoxysilanes R super(F)OCH sub(2)Si(OR super(F)) sub(3)

The hydrolysis of trifunctional alkoxysilanes R super(F)OCH sub(2) Si(OR super(F)) sub(3), where R super(F) = CH sub(2)CF sub(3), CH sub(2)CF sub(2)CF sub(3), CH sub(2)CF sub(2)CF sub(2)CF sub(3), or CH sub(2)CF sub(2)CF sub(2) CF sub(2)CF sub(3), during the action of atmospheric moisture in the pre...

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Bibliographic Details
Published in:Polymer science. Series A, Chemistry, physics Chemistry, physics, 2011-02, Vol.53 (2), p.102-109
Main Authors: Ladilina, EYu, Lyubova, T S, Semenov, V V, Dolgonosova, AYu, Baten'kin, MA
Format: Article
Language:English
Subjects:
Hydrolysis
Hydrophobicity
NMR spectroscopy
Polarity
Polymers
Polysiloxanes
Silicon
Surface properties
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Summary:The hydrolysis of trifunctional alkoxysilanes R super(F)OCH sub(2) Si(OR super(F)) sub(3), where R super(F) = CH sub(2)CF sub(3), CH sub(2)CF sub(2)CF sub(3), CH sub(2)CF sub(2)CF sub(2)CF sub(3), or CH sub(2)CF sub(2)CF sub(2) CF sub(2)CF sub(3), during the action of atmospheric moisture in the presence of 3-aminopropyltriethoxysilane under mild conditions yields new ladderlike polysiloxanes. Their structure is studied via super(1)H NMR spectroscopy, GPC, TGA, and AFM. Polymer coatings prepared on their basis are found to be low-energy and hydrophobic. The total surface energy and polarity of the surface of polysiloxane films decrease, while their hydrophobicity increases with lengthening of the fluoroorganic substituent at the silicon atom.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X11020052