Kinetics of polymerization of isoprene under the influence of catalytic systems based on carboxylate salts of the lanthanides

Bubnova, S.V.; Tverdov, A.I.; Васильев, В. А.

doi:10.1016/0032-3950(88)90428-5

Polymer Science U.S.S.R.

1988

DOI: 10.1016/0032-3950(88)90428-5

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Kinetics of polymerization of isoprene under the influence of catalytic systems based on carboxylate salts of the lanthanides

S.V. Bubnova

A.I. Tverdov

В. А. Васильев

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A Nd‐carboxylate catalyst for the polymerization of 1,3‐butadiene: The effect of alkylaluminums and alkylaluminum chlorides

Wilson¹

1995

J. Polym. Sci. A Polym. Chem.

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The ternary neodymium‐based catalyst for the polymerization of 1,3‐butadiene, Nd(versatate)3/Ali‐Bu2H/tert‐butyl chloride, has been examined with respect to the effects of a range of alkylaluminums and alkylaluminum chlorides. Using either pre‐formed or in situ catalysts, observations pertaining to catalyst activity and physical state and the characteristics of the final polymer are discussed. The catalyst activity series with the type of alkylaluminum was found to be: Aln‐Pr3 ≫ Aln‐Dodec3 = Aln‐Oct3 = Aln‐Hex3 > Ali‐Bu2H > Ali‐Bu3 > AlEt3 ≫ AIMe3. Polybutadiene cis content was found to vary with the type of alkylaluminum used. Pre‐formed catalysts using methylaluminum chlorides as chloride source were found to be the most active; AlMe2Cl chloride gave the highest activity. The activity of in situ catalysts prepared using alkylaluminum chlorides was found to be independent of alkylaluminum chloride structure. Polybutadiene prepared using catalysts based on different alkylaluminums and alkylaluminum chlorides was found to decrease in cis content with conversion. © 1995 John Wiley & Sons, Inc.

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A Nd‐carboxylate catalyst for the polymerization of 1,3‐butadiene: The effect of alkylaluminums and alkylaluminum chlorides

Wilson¹

1995

J. Polym. Sci. A Polym. Chem.

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Lanthanide compounds—Catalysts of stereospecific polymerization of diene monomers. Review

Marina

Monakov

Sabirov

et al. 1991

Polymer Science U.S.S.R.

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Kinetics of polymerization of isoprene under the influence of catalytic systems based on carboxylate salts of the lanthanides

Cited by 2 publications

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A Nd‐carboxylate catalyst for the polymerization of 1,3‐butadiene: The effect of alkylaluminums and alkylaluminum chlorides

A Nd‐carboxylate catalyst for the polymerization of 1,3‐butadiene: The effect of alkylaluminums and alkylaluminum chlorides

Lanthanide compounds—Catalysts of stereospecific polymerization of diene monomers. Review

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