Composite initiator and anionic polymerization method

Composite initiator and anionic polymerization method

  • CN 106,589,170 B
  • Filed: 10/16/2015
  • Issued: 08/03/2021
  • Est. Priority Date: 10/16/2015
  • Status: Active Grant
First Claim
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1. The composite initiator is characterized by consisting of an organic alkali metal compound, an organic aluminum compound and an organic zinc compound, wherein the molar ratio of the content of the organic aluminum compound to the content of the organic alkali metal compound is (0.3-3) to 1, and the molar ratio of the content of the organic zinc compound to the content of the organic alkali metal compound is (0.5-6) to 1;

  • wherein the organic alkali metal compound is at least one of methyllithium, ethyllithium, propyllithium, isopropyllithium, n-butyllithium, sec-butyllithium, pentyllithium, hexyllithium, cyclohexyllithium, phenyllithium, methylphenyllithium, triphenylmethyllithium and 2-naphthyllithium;

    the organic aluminum compound is at least one of triethyl aluminum, triisopropyl aluminum, triisobutyl aluminum and tri-n-butyl aluminum;

    the organic zinc compound is at least one of dimethyl zinc, diethyl zinc, diisopropyl zinc and diphenyl zinc.

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