| abstract |
(57) [Summary]nThe present invention provides a method for controlling the structure of a copolymer of at least two unsaturated monomers, prepared by conducting a free radical polymerization in the presence of a cobalt-containing chain transfer agent, comprising the steps of: A process comprising controlling the molecular weight, the degree of branching and vinyl end groups by changing at least one of their relative chain transfer constant, polymerization temperature, conversion, and amount of cobalt chain transfer agent. The polymer produced by the method. |