High-molecular crystalline polymer with alternating dimethylene and methyl-substituted disilene units in the main chain and method for preparing same
Abstract
Abstract A novel chemical compound--a high-molecular crystalline polymer with alternating dimethylene and methyl-substituted disilene units in the main chain of the formula: ##STR1## wherein n is an integer of from 800 to 1,000. A method for preparing this polymer consists in that vapors of 1,2-bis(dimethylchlorosilyl)ethane is subjected to interaction with vapors of metallic sodium and/or potassium at a temperature within the range of from 250° to 380° C. under a pressure of 1,2-bis(dimethylchlorosilyl)ethane of from 0.1 to 10 mm Hg, followed by condensation of vapors of the resulting 1,1,2,2-tetramethyl-1,2-disilacyclobutane and polymerization thereof at a temperature within the range of from 20° to 100° C. One of embodiments of the method for preparing this polymer comprises polymerization in bulk of 1,1,2,2-tetramethyl-1,2-disilacyclobutane at a temperature within the range of from 20° to 25° C.
Inventors
- 👤 Leonid E. Guselnikov
- 👤 Jury P. Polyakov
- 👤 Elvira A. Volnina
- 👤 Nikolai S. Nametkin
Bibliographic Details
Claims Analysis
Total Claims: 10References Cited (Backward Citations)
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