Polycarbosilanes containing a hetero element

Details Polycarbosilanes containing a hetero element Polycarbosilanes containing a hetero element

1992-01-21

1993-04-20

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From boron reactant having at least one boron to hydrogen or...

528 10, 528 25, 528 43, C08G 7908

Patent

active

052044319

ABSTRACT:
Polycarbosilanes in which some of the silicon atoms have been replaced by a hetero element selected from boron, titanium, zirconium, hafnium, etc. The hetero elements are incorporated into the polycarbosilane skeleton in such a way that, like the silicon atoms, they are bonded to the other parts of the polycarbosilanes via hydrocarbon bridges, and the polycarbosilanes are free of hetero element-oxygen-silicon bonds.

REFERENCES:
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patent: 4987201 (1991-01-01), Riccitiello et al.
patent: 4997899 (1991-03-01), Fujino
patent: 5087685 (1992-02-01), Sartori et al.
Yajima et al., "Synthesis of Polytitanocarbosilane and Its Conversion Into Inorganic Compounds," J. Materials Sci., 16(1981), 1349-1355.
Yamamura, "Development of High Tensile Strength Si-Ti-C Fiber Using An Organometallic Polymer Precursor", Polym. Prepr., 25(1984), 8-9.

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