| 摘要 |
<p>A new chemical substance-macromolecular cristalline polymer with alternate dimethylene and methylsubstituted disilene units in the main chain has a general formula: (FORMULA) where "n" is an integer from 800 to 1000. The method of obtaining the polymer consists in reacting the vapour of 1,2-bis(dimethyl-chlorosilyl)ethane with the vapour of metal sodium and/or potassium at a temperature of 250-380 C and at a vapour pressure of 0,1-10 mm of mercury of 1,2-bis(dimethylchlorosilyl)ethane with the consequent condensation of the vapour of he resulting 1,1,2,2-tetramethyl-1,2-disilicyciclobutane and its polymerization at a temperature of 20-100 oC. One of the variants of the method provides for mass polymerization of the 1,1,2,2-tetramethyl-1,2-disilicyciclobutane at a temperature of 20-100 C. </p> |
