FUNCTIONAL METALLOSILOXANES AND METHOD FOR THEIR PREPARING Russian patent published in 2007 - IPC C07F7/02 

FIELD: chemistry of metalloorganic compounds, chemical technology.

SUBSTANCE: invention relates to synthesis of organosilicon compounds. Invention describes novel functional metallosiloxanes of the general formula (I): M[OSiR'R''_n(OAlk)_2-n]_m (I) wherein M means bi- or trivalent metal of the following group: Zr, Zn, Fe (II), Fe (III), Ce, Cu, Cr, Eu and value m corresponds to metal valence; Alk means a substitute -CH₃ or -C₆H₅; R' means substitute -CH₃ or -C₆H₅ or -NH₂(CH₂)₃; R'' means a substitute -CH₂=CH; n = 0 or 1. Also, invention relates to a method for synthesis of functional metallosiloxanes involving interaction of sodium-oxy(alkoxy)organosilane chosen from group sodium-oxy(alkoxy)organosilanes of the formula (II): NaOSiR'R''(OAlk)_2-n (II) wherein R', R'', Alk and n have above given values with metal salt chosen from group of metal salts of the general formula (III): MX_m (III) wherein M and m have above given values; X means Cl or Br or -CH₃COO. Invention provides improving compatibility of synthesized compounds with polymeric compositions and variation of metal type that allows improving their thermostabilizing effects in addition to polymer. Invention can be used in synthesis of different modifying agents of different polymers, in particular, thermostabilizing agents.

EFFECT: improved method of synthesis, improved and valuable properties of compounds.

24 cl, 2 dwg, 1 tbl, 9 ex