| abstract |
A diblock copolymer obtained by polymerizing acrylic, methacrylic or nonacrylic vinyl monomers in the presence of a polymerization initiating amount of an initiation system including (1) at least one functional initiator and (2) an alkali metal alcoholate. The alcoholate has the formula: n n R'OM' n n in which M' is an alkali metal and R' has the formula: n n R.sup.1 (OR.sup.2).sub.m n n in which R 1 is a linear or branched alkyl radical containing from 1 to 6 carbon atoms or an arylalkyl radical, R 2 is a linear or branched alkylene radical containing from 2 to 4 carbon atoms, and m is the integer 1, 2 or 3. |