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PROCESS FOR PREPARING A STATISTICAL COPOLYMER BASED ON ACYCLIC DIENE MONOMERS AND CYCLIC DIENE MONOMERS, COPOLYMERS AND COMPOSITIONS CONTAINING SAME

  • US 20200131292A1
  • Filed: 06/28/2018
  • Published: 04/30/2020
  • Est. Priority Date: 06/30/2017
  • Status: Active Grant
First Claim
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1. A process for preparing a random copolymer based on at least one acyclic diene monomer and on at least one cyclic diene monomer, wherein the process comprises a step of copolymerization, in the presence of a polar agent and an anionic initiator in a polymerization solvent, of at least one acyclic diene monomer and of at least one cyclic diene monomer of which one C═

  • C double bond is endocyclic and conjugated to an exocyclic C═

    C double bond, at a polymerization temperature below 80°

    C., and a molar ratio of the polar agent/function(s) of the anionic initiator capable of initiating anionic polymerization being greater than 0.1.

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