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1998•Macromolecular SymposiaRequires access

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

Gerd Mannebach, R. Bieringer, Roman Morschhäuser, Reimund Stadler

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Abstract

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.

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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.

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Available abstract

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.

Key concepts: Copolymer, Polybutadiene, Polymer chemistry, Monomer, Polymerization, Alkyl, Polar, Anionic addition polymerization

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