PROCESS FOR PREPARING 2-ETHOXY-2-METHYL-4-ETHYL-1,3- DIOXOLANE; 2-ETHOXY-2-METHYL-4-ETHYL-1,3-DIOXOLANE, PROCESS FOR PREPARING STRUCTURALLY MODIFIED POLYMERS, AND STRUCTURALLY MODIFIED POLYMER Russian patent published in 1997 - IPC

FIELD: chemistry of polymers. SUBSTANCE: claimed process for preparing structurally modified polymers based on conjugated dienes comprises polymerizing at least one conjugated diene in inert hydrocarbon solvent and in the presence of initiating organic compound alkali metal compound and certain compound of general formula % wherein R is alkylene bridge group having from 2 to 4 carbon atoms in the bridge; R¹- is alkyl having from 1 to 10 carbon atoms, and R²- is hydrocarbyl or hydrogen. EFFECT: more efficient preparation process. 14 cl, 3 tbl