Interaction of polyphenylsiloxane with magnesium acetylacetonate

Abstract

Interaction of polyphenylsiloxane with magnesium acetylacetonate in boiling toluene has been studied. The products isolated via extraction and fractional precipitation have been characterized with elemental analysis, IR spectroscopy, X-ray diffraction analysis, and thermal analysis. The reaction products are polymers containing acetylacetonate group at magnesium atom. Structure of the major product has been suggested.

Fabrication of Magnesium-Silicon Nanocomplexes by the Interaction of Polyphenylsiloxane with Magnesium Carbonate

“…In particular, a temperature increase up to 300°C after mechanochemical activation resulted in a significant increase of the yield of vanadium-containing phenylsiloxane and an attaining to the initial ratio of silicon to vanadium [16]. As was shown earlier [15], the interaction of magnesium bis-acetylacetatonate with polyphenylsiloxane proceeded with a disruption of the silicon-tomagnesium ratio and an inhomogeneous distribution of magnesium to silicon. Therefore, the objective of the present work was to study the interaction of polyphenylsiloxane with magnesium carbonate under the conditions of mechanochemical activation with subsequent heating of the reaction mixture.…”

“…The method of mechanochemical activation for the production of polymetalloorganylsiloxanes has been applied for more than 20 years [8]. In [9], polyferro-and polychromophenylsiloxane were produced for the first time under the conditions of mechanochemical activation at a frequency of 2.5 Hz and a synthesis time of 3 hours [10]. The possibility of the fabrication of polycuprophenylsiloxanes was studied by A.A. Kapustina et al [11].…”

“…Here, it was shown that the silicon-oxygen-boron bond was disrupted with an increase of the activation time and the weight of the grinding balls. Several studies have been conducted on the interaction of metal acetylacetonates with polyphenylsiloxane under the conditions of mechanochemical activation [15][16][17][18].…”

Functional Nanostructured Tribotechnical Materials

“…The arising of "gallery" size was due to the arising of interlayered space that allows to intercalate the polymer molecules of polymagnesiumphenylsiloxane it. The size of polymer chain of polymagnesiumphenylsiloxane on base of X-ray diffraction (XRD) analysis, positron annihilation spectroscopy data [23] was investigated. The data X-ray diffraction analysis has shown that intercalating of polymagnesiumphenylsiloxane in the silicate proceeds to exfoliation of vermiculite.…”

“…Most interesting as basic materials for modification are layered silicates: natural inorganic vermiculite and elementoorganic polymers polyphenylsiloxane and polymagnesiumphenylsiloxane [23].…”