The anionic polymerization of dialkylaminoisoprenes‐5‐copolymerization with 1,3‐butadiene

Abstract The anionic copolymerization of 5‐( N,N ‐dialkylamino)isoprenes and 1,3 ‐butadiene was investigated in hexane. We found that basicity and increasing amount of the polar monomer has a strong influence on the microstructure of polybutadiene. All tested 5‐( N,N ‐dialkylamino)isoprenes were incorporated much faster into the copolymer than butadiene. Depending on the alkyl substituents the resulting copolymer is either a nearly perfect diblock or shows a considerable tapered structure.