US Patent:
20060264577, Nov 23, 2006
Inventors:
Rudolf Faust - Lexington MA, US
Priyadarsi De - Lowell MA, US
International Classification:
C08F 297/02
Abstract:
A method of synthesizing an endcapped polymer, comprising reacting in a solvent a cationic living polymer with an optionally substituted conjugated diene as an endcapping reagent, whereby the solvent causes termination by halogenation to be faster than the addition of additional molecules of the conjugated diene, thereby producing an endcapped polymer having a halogenated endcap group.