Methods for the synthesis of polysilanes
A method of controlling the yield of polysilane of a desired molecular weight and/or polydispersity, prepared in a reductive condensation of corresponding silane monomers on a solid catalyst dispersed in an inert solvent for both the monomers and the growing polymer chains, comprises determining the variation of molecular weight and/or polydispersity of the polysilane as a function of the solubility of the polysilane in reaction solvent, determining thereby a chosen optimum solubility of the polysilane in solvent for obtaining a desired yield of polysilane of said desired molecular weight and/or polydispersity, and thereafter carrying out the preparation of the polysilane in a solvent in which the polysilane has said chosen optimum solubility. 5 figures.
- DOE Contract Number:
- AC04-76DP00789
- Assignee:
- SNL; EDB-94-110905
- Patent Number(s):
- A; US 4987202
- Application Number:
- PPN: US 7-327195
- OSTI ID:
- 7275895
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CONTROL
DEHYDROCYCLIZATION
HYDRIDES
HYDROGEN COMPOUNDS
MOLECULAR WEIGHT
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
POLYMERS
PROCESS CONTROL
SILANES
SILICON COMPOUNDS
SOLUBILITY
SYNTHESIS