POLYCARBOSILANES CONTAINING METALLIC CLUSTERS AND PROCESS FOR PREPARING THEREOF

FIELD: organic chemistry. SUBSTANCE: present invention describes polycarbosilanes containing metallic clusters of general formula: wherein n is equal or more than 6; m is 0.001-1; R1,R2,R are CH3, C2H5, -CH=CH2 and -CH2CH=CH2; Cl are clusters of III-VIII group transition metals. Said polycarbosilane...

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Bibliographische Detailangaben
Hauptverfasser:	CHERNYSHEV E.A, GERLIVANOV V.G, BORISENKO L.L, TSIRLIN A.M, GUBIN S.P, POPOVA N.A, FLORINA E.K, IZMAJLOVA E.A
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	FIELD: organic chemistry. SUBSTANCE: present invention describes polycarbosilanes containing metallic clusters of general formula: wherein n is equal or more than 6; m is 0.001-1; R1,R2,R are CH3, C2H5, -CH=CH2 and -CH2CH=CH2; Cl are clusters of III-VIII group transition metals. Said polycarbosilanes are useful for preparing highly strong heat-resistant composite ceramic materials. Coordination compounds of III-VIII group transition metals are reacted at 150-450 C with silanes of general formula (2) or (3) or with carbosilanes of general formula (4) or with mixtures thereof. If desired, reaction mixture is maintained at 150-450 C for 0.5-5 hours on addition of metallic compounds. In formula (2), (3) and (4) a is equal or more than 2, b is equal or more than 4, K is 0-10, r is 1-10; R1,R2SiR3R R,R1,R2,R3,R are H,-CH3,-C2H 5,-CH=CH2,-CH2-CH=CH2. EFFECT: improved properties of the title compounds. 3 cl, 1 ex, 2 tbl